Cummins isx runs hot

 

The temperature climbs pretty slow . S. 2010 Kenworth T8 1XKDD49X8AJ262684 with Cummins ISX 79360158 with an engine fan that's constantly running when parameters are set like they should be. Low oil pressure at idle could be a result of a system leak, low oil levels, or a clogged or poor-quality oil filter. May 14, 2022 · With me I have 500hp x15 I haul pretty heavy loads (50k-60k) (cattle) and when coolant temp is 180 oil temp is 220-225 when coolant temp is 200-210 oil temp is 230-235. However, like any mechanical system, it is not immune to issues that may arise over time. I have a 94 Ram 12v 4:11 gears and a 5 speed with 210,000 miles on it, Banks air filter and intake box, modified fuel cam plate. I have narrowed it down to either my wiring harness or my ECM. 2003 Dodge 2500 with 381k miles on chassis, approx 150k on engine build. When running a regen you need to open up data monitor and watch all the exhaust temps and doser injector state. There are several write ups on the forum for replacing broken belts all the way to replacing the manifold with a better aftermarket part. One of the benefits of a single cam system is the reduction of failure points in your engine. If you’re in the market for an ISX15 , its Cummins specs log includes: Nov 21, 2010 · Cummins isx oil temp too hot Discussion in 'Trucks [ Eighteen Wheelers ]' started by vadim2200, Dec 5, 2010. I have a ‘15 Entegra Cornerstone with an ISX15. I had an oil pressure sensor go and that is exactly how it would act. Installed a Cummins one and it hasn't gone over 202f even during the heat wave we had last summer. sorry to bring this back from the dead but is there any way to tell this at idle. It's like the truck has just run out of fuel No fault codes displayed. The closer the engine temp runs to 210, the more power it will This can lead to overheating and potential engine damage. In this blog, we'll explore some common Cummins ISX15 engine issues that operators may encounter and provide insights into troubleshooting and solutions. Check your water pump for operation. Mar 5, 2024 · Cummins ISX15 engine is a powerhouse, renowned for its performance and reliability in heavy-duty applications. Experience Aug 10, 2018 · the truck is a 2014 KW T660 with the Cummins ISX engine. A. 50-inch). Towing with the RPM's too low will generally cause the EGT's to run hotter. Took the truck to Cummins and afraid they might be taking me a run for my money. Hello, I have a 2016 kenworth t680 with Cummins isx 15 with an oil temperature problem. I have an 05 ISX 500 CM870 CPL 8519 I had turned up to 550hp and 1850 ft/lbs and it runs good and pulls great and fuel mileage is much improved. Page 2 of 2 < Prev 1 2. Last year I had a failed head and have replaced the head, exhaust manifold, injectors (140 HP) I think, 60 lb valve springs, and aftermarket governor spring. Newer thermostat. I believe the ISM top end range is around 430 and the ISX is around 515. Locating the oil temperature sensor in a Cummins ISX engine plays a crucial role in monitoring Nov 4, 2014 · Engines run hotter on the upper part for they take the heat from the combustion in the upper section. There has to be enough refrigerant in the evaporator to actually transfer the heat, and as the pressure drops less and less is in the evaporator, so it warms up. Feb 13, 2012 · Feb 4, 2009. Exhaust temps can easily reach 1300+ degrees, especially if you are climbing a hill. Does anyone have a wiring diagram for the ECM and wiring harness? I have a P2146 code and everything seems fine on the injector side through the valve covers. The dual cam is the earlier model. the fan turns at idle all the time and i'm not sure May 16, 2014 · It has 374Xxx miles. 90% sure one that one. The engine has covered 2. Jul 22, 2021 · 0. After I starting engine, cold or hot, engine idling good for more than 30 seconds than unexpectedly start trah trah trah trah, if I set PTO sometimes Feb 24, 2010 · 550-800* freeway. My experience with the small block engines like the ISM is when you have them turned up to maximum hp, they have a tendancy to run hot. Also the #4 and 6 injectors were flowing over and under. It runs great if it is about 75 degrees or colder outside. Nov 5, 2013 · So it turns out my #6 cylinder had EXCESSIVE blowby, like to the point where I'm surprised it was still running. 39-inch vs. Doesn't happen while driving. The engine can cook and the coolant will remain at the proper temperature, a rule of thermal dynamics. Does not run hot, but when driving down the road it looses coolant out of the overflow on the radiator. Exhaust Gas Recirculation (EGR) System Sep 15, 2023 · Here we discuss some of the problems you might run into with your ISX. May 2, 2010 · The oil temp on my ISX runs 230 all the time while my water temp runs 190. A faulty EGR cooler can cause the engine to run less efficiently, resulting in decreased fuel economy. Zip, zero, none Jun 13, 2019 · Bad info you got up there. A while back it was starting to feel real sluggish and have low power. Location: Dallas, TX. When I lost boost, any incline I climbed I would lose speed. The oil temperature sensor is located just behind the fuel filter, below the integrated fuel system module on the block. Bobtailing it wont get over 180. They gave truck back to me. Oct 26, 2023 · hi, I'm working on a 2007 peterbilt with a cummins isx in it. Better Throttle Response: Experience more responsive throttle inputs, making your truck easier to Nov 29, 2023 · Like the N14, the ISX boasts a deep-skirt, cast-iron block. vadim2200 Apr 7, 2013 · Cummins does have requirements to remove and clean the doser injectors because they do get plugged up rather easily. Ideally, we would like to see 12. However, and while the ISX enjoys a displacement advantage over the N14 it replaced, its bore is actually smaller (5. The fan clutch is a common failure on the 6. For further details and discussion of DEF for Cummins engines, Jul 22, 2021 · Needing some insight. ISX 15 Running Hot. OBD showed high coolant temps. When I take off and the engine is under a little load it runs rough up to 1,200 rpms. It can be accessed by removing the accessory bracket. $20. 2007 Ram 3500 Laramie CCDRW 5. Apr 2, 2016 · Can anyone tell what the turbo boost pressure should go up to on a Cummins ISXe5 rated at 600HP. That was around 90 degrees outside . It has the larger radiator in it. I have a 2011 PETERBILT 387 with a Cummins ISX that is randomly overheating and or running warm. It did this a bunch of time but then I gave it a bit of extra on the peddle and it stayed running. We have had excellent service out of the correct DEF is used, Cummins recommends the use of Fleetguard® Diesel Exhaust Fluid or any DEF that meets ISO22241 specifications. The fan clutch is thermostatically controlled, meaning when the fan gets hot, it engages the clutch. I had a oil themostat stick closed and the oil temp rose and shut the engine down. TLDR; Intermittent misfire (very rough), hard to start, white smoke when misfiring which worsens when accelerating. The heads get hot before the rest and that is why the upper hose is hot because it comes off the head. Low pressure shuts off around 22-24psi and the contacts reclose around 37-43psi. Hello and Welcome to Just Answer You are not running hot. The engine doesn't shake at at. Wanted to see if anyone else has experienced their London Aire etc running hot while towing 16-17k. You can find several threads on the topic using the forum search function. The low coolant light never comes on while running, but only after being shut off for 12 hours or more. Like. You can hear it when you accelerate because it sounds like a jet taking off under the hood. Started noticing oil getting too hot. Jul 25, 2018 · Trent389 Bobtail Member. Mar 24, 2012 · 19 posts · Joined 2012. Since I bought it in 2013 until now I drove more than 350k miles with this problem and the engine still runs the same. Conclusion. It only occurs when I am pulling heavy because whenever I am empty no matter how hot Dec 28, 2010 · Dec 27, 2010. 7ºC [170ºF] Diesel engines are best suited for air temperatures between 60 and 90°F [15 and 32°C]. Jul 12, 2009 · Cummins ISX 530 Heating Problems. #1 · Nov 20, 2010. 2004 Jetta TDI 5spd Malone S1 + dyn EGR/idle tune. I let truck idle for 1 and half hour before leavingTruck started to heat up past 220 and Aug 22, 2011 · Cummins isx oil temp too hot Discussion in 'Trucks [ Eighteen Wheelers ]' started by vadim2200, Dec 5, 2010. Running EGT's will depend on the trucks HP and the size and weight of the load too. We checked the wiring for the fan clutch and everything seems fine. With no load the engine temp varies Sep 28, 2009 · 2003 Cummins ISX running HOT ? Coolant refill ? Discussion in 'Trucks [ Eighteen Wheelers ]' started by marc670, Sep 28, 2009. We noticed that when the temperature reached 200 on the gauge it shut off before the fan clutch kicked in. Optimized Torque: Tuning can provide more low-end torque, helping with heavy hauling and towing. The Cummins X-series engine is an Inline (Straight)-6 diesel engine produced by Cummins for heavy duty trucks and motorcoaches, replacing the N14 in 2001 when emissions regulations passed by the EPA made the engine obsolete. You might drive 5 miles and it comes out of it. Part was cheap but the labor at a Cummins shop was a little pricey. I'm still learning how to navigate here. The outlet side, with the fan on high, should be cooler than the inlet. Mar 25, 2016 · Your mistake was going to the diesel dr. Posts: 147. 1st block off plate goes on position where EGR manifold meets exhaust manifold. I took it to the shop, they tested and let idle for 8 hours and it did not run warm or overheat. Nov 5, 2023 · The Cummins ISX oil thermostat is located in the middle of the block on the driver’s side. Start it up, run for 10 seconds or so (until the ecm recognizes that the oil pressure isn't coming up I suppose) then shut down. The fins in the pump are not flowing the coolant, they either broke or are chipped. It comes on as a warning that the exhaust is hotter than usual and just a heads up if you parked over grass or near flammable gases or whatever. The stock exhaust manifolds are known to warp, crack and break manifold bolts. The high exhaust temp light will come on when ever the exhaust is over 700 degrees or so and you are under 5 mph. When I went to restart, it would kick over run for 2-3 seconds and then die. Jun 20, 2015 · Hello guys I just did overhaul on my 2011 Cummins ISX, the engine seems to run fine but it is not cooling well at idle (we usually run idle speeds around 800 rpm's). Not much change, but the engine was a little quieter at idle. It makes the turbo get hot from the extra heat coming out of the exhause which heats the air up. cooperate Jul 22, 2018 · 15 posts · Joined 2015. My Isx15 in a volvo when the oil Temp is 200+ While idling the oil presdure is about 28-30. Never seen it drop as low as 20psi. I already change oil temperature sensor, water temperature sensor, water pressure sensor, water thermostat, oil pump, engine bearing set. Yup the vgt needs the center section cooling, so it doesn't kill the motor and the parts inside to move the nozzle. . It is an EGR motor. 2007 5. Truck is down on power and using more fuel Sep 23, 2008 · Woody, I own a 2007 kenworth with an isx 530 2006 motor, i have always ran it between 1300 and 1500 rpms these motors run best around 1300 to 1400. #5 · Jun 24, 2013. Open for suggestions. NWAF, Dec 12, 2015. 5. you can run it up into the 2000 rpm range but why they pull great at 1300/1400 rpm's and get better fuel mileage there. Truck is not being used until this is resolved. It'll slowly drop over about 5 seconds and then repeat, regardless of being in park, reverse, neutral, or drive. Appearance. 5 to 5 mpg when its running normal its 7+ Tman : The engine ecm will change the fueling curve and timing when it detects a engine overheat condition in a effort to reduce the load on the engine, this doesn't help fuel mileage. The engine will run on only clean air, allowing the fuel to burn very hot, improving its efficiency and reducing soot. This motor was completely rebuilt about 2mos. Feb 22, 2013 · Truck starts then stalls after 2-3 seconds. I have a 2006 ISX cummins 530 hp with 433,000 miles on it. The Cummins ISX Engine first debuted in 2001 replacing the popular N14 Series. The truck was running great but a few days ago it shut off while running. Page 2 of 3 < Prev 1 2 3 It should be running 180. Yes, if you have a false temp reading from coolant sensor it can cause the fan to run all the time,or not at all ,depending on the sensor value. In all cases, less than 212ºf will cause water buildup in the crankcase. The lower is only the oil and that is always the cooler side of the engine. If the system isnt allowed to do this then the hoses will collapse from the vacuum. Nov 20, 2010 · 21 posts · Joined 2010. Mopar1973Man -=- Michael Nelson -=- Mopar1973Man Aug 19, 2014 · yes fan comes on at 209 shuts down around 202 but when engine is running hot fuel millage is arount 4. ISX CUMMINS. Jan 10, 2024 · Join Date: Apr 2021. #3 · Mar 14, 2015. You can only hear it through the exhaust. It's hard to re-start. It will start first thing in the morning run for +/- 40 seconds then dies. The water temp only runs around 180. Once the fan clutch cools (as you move down the road) it will disengage the fan clutch and freewheel. The truck would also idle unusually high at 800-1000 RPM. EGR has to be blocked with steel plates on both cold & hot side. #1 · May 24, 2016. This is an older thread, you may not receive a response, and could be May 23, 2019 · It will get as hot as 220 and fan kick on on cool off to 210. Oct 19, 2016 · Around 180,000 miles the engine temp started running a little warmer until finally with any load and warm conditions it was at 210 and in a "defueling mode". May 12, 2023 · Hi there! I'm looking for an answer as too why my cummins isx 565 keeps running hot. Is The Cummins ISX A Good Engine? The engine is a workhorse but not without its issues. And I still got the same issue. It will restart after cranking on it for about 20-30 seconds, but acts like its a cold start, with the smoke and so on, it will smooth out real quick and then run all day long with out a problem. 2nd block off plate goes on position where EGR Aug 30, 2009 · Posted 8/30/2009 17:21 (#830087 - in reply to #830067) Subject: RE: ISM Vs ISX. The rad was replaced a month ago and coolant temp rarley goes above 195. It does not appear to be leaking anywahere, but when the truck is running, you can smell hot coolant around the passenger side. Seconds later it tried to cut on again and stayed on until the temp went back to 200; but the truck acted like it couldn’t Accerlate at all at the stop light! Oct 9, 2020 · 2000 International with 10. 7L though. EGR Issues Mar 18, 2020 · 2006 5. ©2015 Cummins Inc. All engines are designes to bypass the rad via the thermostat in cold temps. . Low on coolant, same thing. If anything you may have sticking thermostats or an issue with the fan activation. Panhandle of Ne. With horsepower ratings that range from 400-600 and up to 2050 pound-feet peak torque it’s no surprise that this engine is a favourite for fleet operators and drivers alike. Work that needs to be done: The basic principle for blocking off EGR is the same on all engines. A few days ago I pulled the coolant filter out and surprize, a few drops of oil inside. Cummins says the sensors are reading properly. high pressure Pump and relief valve are new and unlikely the cause. Oil temp is running way too hot. truck came in with slightly rough idle and a no start after heat soak. Haven't taken it out to the streets or on any loads yet. Under a load on a hill and the turbo is spooled if you listen closely you can hear a little sputter in it. , Box 3005, Columbus, IN 47202-3005 U. I can leave the truck setting idled up and looses no coolant. constantly. Replaced those and checked torque on all connector tubes. Jun 27, 2020 · Isx running hot between 200-210 degrees constant. Apr 27, 2010 · As far as pressure specs, the high pressure switch shuts off at 450-490psi, and the contacts close again around 270-330psi. 9 with 175k miles. I have a 2014 389 Peterbilt with a 550 Cummins ISX. It makes sense now why it was running rough/spewing blueish white smoke on startup and then running normal when warm. Jul 29, 2021 · An important thing to know about the Cummins ISX is that they made two different engines, a dual cam and a single cam. 14952 posts · Joined 2006. No issues while checking it out on test-drives over a few days. The photo is taken on CM2250/CM2350/CM2350A X15 ISX, but all other Cummins engines (CM871, CM2150D, ISL, ISC, ISB, ISM) are similar. Originally called the "Signature" series engine, the ISX uses the "Intellect System" (hence the "IS Jun 9, 2012 · 2007 t800 530 isx shows a high to moderate temp code in egr intake engine runs hot fan on a lot if outside temp is 45 degrees the truck runs ok fuel mileage 4 to 5mpgs? … read more DR. Mine only goes to 28psi and I think that is too low. It's pretty common. Spartan Chassis. Problem is lately since weather has started to cool up motor will sometimes loss boost of about 10 lbs and exhaust temp will climb to 1000 to 1100 degrees. Aug 2, 2021 · Over the last week, while trying to diagnose the issue, I've noticed that the surge happens only at idle. 6-volts, but anything over 12-volts will be enough to consider our voltage check a pass and move on. Degraded oil quality carbonising in service. Never gets over 220. 6. Apr 25, 2017 · 96 posts · Joined 2008. I pulled the air inlet tract off and cleaned all the carbon out and cleaned the sensors. Page 1 of 3 1 2 3 Next > Dec 5, 2010 #1. Mechanic's Assistant: Hi. About a month in it started to hard start after getting hot and sitting for about an hour. Faulty fuel injector pump/injectors. - For non-synthetic motor oil, the traditional approach is to try to hold oil temperatures between 230 and 260 degrees F. Bulletin 4971518 Printed in U. I recently replaced the radiator, water pump, thermostat (190 degree), hoses, coolant, fan clutch, and radiator cap. Oil and water temps are stable. Posts: 554. Decreased fuel economy. The damn engine fan won't hardly shut off if you have the ac on. Problem is sluggish response and low power. 3 mil Km but had the head overhauled 18 months ago and new cams last month. Even in my older isx that had more than a million miles. 1350* WOT (36-38psi) 1150-1250 maximum fueling @ WOT (40-42psi) 00 24v powered by the high performance "53" block and "Unicorn Injectors" 576hp/1285tq 8/10/2013. Then when you replace the fuel pump relay you'll get a P1689 code so don't worry. Dec 24, 2010. Understanding the location of the oil May 12, 2016 · 05-12-2016, Hello, I am having a Oil temperature overheating issue on my 2008 cm871. 73 522000kms. I let my truck sit for a couple of weeks with about 1/4 tank of gas. Sep 28, 2009 #1. Feb 26, 2017 · Feb 4, 2009. Fan runs constant to keep it at 210-215. #1 · Apr 25, 2017. The next thing to verify is battery voltage. Run fuel system leakage test and record pressure lost per QSOL. At times, it would only turn over but not start. Fuel rail pressure will drop to ~4500psi and then jump to ~6000. :thumbsup: Nov 11, 2019 · MDSWA. Infrequent oil change intervals causing oil breakdown in service. Dec 5, 2007 · It sounds like it has a miss in it at an idle. 3. Cummins Dec 2, 2023 · The normal oil temperature for a Cummins ISX is typically right around the middle of the block on the driver’s side. No problems running hot at all. Oct 17, 2009 · Here's the problem. May 16, 2018 #11. High intake temps from the actuator is because the turbo isn't moving the fins. A very tired, falling apart, 2008 Dodge Ram 2500, 6. Should replace the rad cap as well. The oil thermostat plays a crucial role in regulating the temperature of the engine oil. The inlet hose is the one from the top of the engine. Jul 26, 2014 · The issue is water pump. It doesn't necessarily mean you are regening. TSB 150163- Excessive Lubricating Oil Consumption on Engines outside of warranty or extended Coverage Period. Measure injector leakback to isolate defective injectors. Jan 24, 2020 · I wanted to share an experience I had a few days ago. The Cummins ISX engine is widely used in trucks and heavy-duty vehicles. Guessing your motor is between the yrs of 2007-2014. Also, is the DOC and DPF due for cleaning? It sounds like you have access to Insite. AC input switch and coolant temp sensor are reading correctly. Increased exhaust smoke. #6. Generally, at about 1/3 of a tank of fuel (but once today with the tank at around 1/2 full), the engine will shut off, just like it has run out of fuel. ago. Our State fatigue management rules allow 17 hours work time every 24 hours provided we take a 20 minute break from driving every 5 The Cummins ISX is definitively North America’s most popular heavy-duty engine. We towed our stacker for the first time out to Glamis for the holidays and got the check engine light climbing the Redlands grade. Cummins EGR block off - hot side. Dec 1, 2016 · Yes it can cause that. I also pressure tested the charge air cooler ( no leaks at all) ad pulled Dec 2, 2021 · The injector performance test can pass and still log faults. Found cylinders 1,2 and 5 low on cylinder balance. Radiator, condenser, and charge air cooler are all cleaned out … read more Jun 20, 2007 · With no thermostat, the coolant can flow so quickly, that the engine will not transfer heat into the coolant. Join Date: Mar 2011. I bought a new Pete 378 in Sept. Only from Dodge. I got a call from my driver that the truck would not stay running, it would start and then automatically die within seconds. And the only engine offered by every major Class 8 truck manufacturer. It had one camshaft that operated the valvetrain and another camshaft that ran the injectors. Fan control status states that engine fan is on due to fan control switch or data link control. Apr 26, 2009 · I have a 2003 Volvo 770 with Cummins ISX 450HP engine 860K miles. The Cummins N14 was a fantastic engine and beloved by diesel fans for many years. No work had been done to truck. Nov 6, 2023 · The oil pressure at idle for a Cummins ISX engine may vary, but it is generally recommended to be around 15 psi. Failure to promptly refill or replace DEF in the tank will trigger an inducement sequence, limiting engine torque and, eventually, vehicle speed to 5 mph. I am now checking for resistance between the wiring harness and ECM and don’t Jan 20, 2012 · Cummins ISX low boost high exhaust temps. 1. 7/ZF6, 4x4, QC/LB, EFI Live and a SouthBend. Truck is at 450 hp runs good and does not consume oil. com DEF 100% DEF 100% DEF 100% DEF 100% 353697_Cummins_4971518. It is important to ensure that enough oil reaches the internal engine parts to prevent damage and maintain optimal Carbon build-up can be caused by: Hot shutdown of engine. 4. A failing EGR cooler can cause an increase in exhaust smoke, particularly white or blue smoke. Nov 26, 2014 · 66. The problem comes and goes but seems to be warm weather related. 250 plus when loaded. They are wanting to crack open the engine bc they believe it is a blown gasket. Nov 22, 2018 · If the reading is less than 180 the t-stat isn't fully closing. Nov 30, 2023 · 4: 98%. If fail. The fan come on at 210 deg. the engine number is ***** The truck was running rough and I went to turn it off with the key and it wouldn't shut off, I tried it again w … Apr 13, 2011 · I have a isx 525 cummings that has the oil temperature running at 250 deg. The CAC then can't cool the air down enough. Aug 13, 2013 · With the EGR disabled, that 570 degree 'sweet spot' exhaust temperature is no longer maintained. Oct 7, 2020 · The first step is to determine if there are any associated or related fault codes that could be causing the issue. Recently bought the truck with 130K. I have a 2006 W900L. It is my understanding that the unusual engine fan uses a temperature operated clutch which allows the fan to sit idle until engine temperature reaches a predetermined level to engage. 9L G56 3. Mar 8, 2020 · 2009 International Prostar. What is the complete model and serial number of your machine? 2005 peterbuilt ***** Mechanic's Assistant: Are you fixing this yourself? What have you tried so far? Yes and changed oil temp sensor thermostats oil sending sensor Jun 24, 2013 · KATOOM. Nov 30, 2023 · For the Cummins ISX15, tuning can lead to: Increased Horsepower: You'll notice improved acceleration and power, especially when climbing steep grades. Kenworth looked at it and said the radiator was plugged but agin the truck does not run hot. For full synthetic motor oil, maximum can exceed 300 degrees. ISX 15 engine fan. Temp gauge on dash got to 232. As soon as I start climbing a hill oil temp will go over 245 and climb steadly. 855 ci) over the N14. 65-inches (vs. I think the total bill was around $700. Jul 28, 2014 · Cummins ISX Running Hot Discussion in 'Trucks [ Eighteen Wheelers ]' started by Mike379L, Jul 28, 2014. Stays about 180 most of the time. There was no check engine light that came on. It idled like this during my 10 hour break at 1,000 RPM and when I woke the idle had returned to normal, 600 RPM. Jun 30, 2011 · 5789 posts · Joined 2006. Maybe broke 240 once . Nov 25, 2011 · whitenite. High intake temp if from overfueling is from a injector starting to fail. Like I said earlier, if the ac is coming on then shutting off for a while it sounds like your lines are restricted. hide. Jan 9, 2022 · I tried a parts store pos and my coolant was hitting 225f and very concerning. 1250* is the normal "sustained" EGT you will want to run if pulling a load on a grade. indd 2 9/17/15 10:24 AM Aug 7, 2016 · Hello everybody, I got a problem with the idling on my 2006 cummins isx 400. 00-inches on the N14) accounts for its additional cubic inches (912 ci vs. The ISX’s stroke of 6. Everyone here seem to know their stuff. I've got a 2006 379 with a isx 500. If it is 180 or higher check the heater hoses' temp. If you were having issues the check engine stop engine light would be on at the below temps. Some pumps even use plastic fins in the cummins pump, horrible design causes lots of these issues. Although water cooling isn't unique to vgt's or Holset turbos at all. # 7. Jul 12, 2019 · the low side is sucking more than the high side can deliver, so the pressure drops as the revs increase. #1 · Jul 22, 2018. 7 C [30 ºF] Intake Manifold Air Temperature Warning Limit 74ºC [165ºF] Intake Manifold Air Temperature Shutdown limit 76. DieselDon16;9111930 said: my truck is literally full of Panties already Mar 14, 2015 · 469 posts · Joined 2010. You can run without a thermostat, if you restrict the flow of coolant. Feb 5, 2020 · A Cummins ISX engine is an Inline-6 diesel with a duel-fuel configuration — meaning it can run on diesel or natural gas — although diesel is the most common. Also was running around 230ish even when I was empty during the 90 degrees Mar 4, 2011 · Doing around 60 MPH, I would lose boost. the most I have ever let it get to is 248 and then I would pull over and let it cool down. #4, which was faulty for the second time, was flowing 95% Sep 16, 2011 · To test starting pressure just pull the fuel pump relay in the PDC and crank on it. Feb 4, 2019 · Entegra Owners Club. Cummins CM2250/CM2350/CM2350A X15 exhaust side block off plate location Aug 9, 2018 · I have a 2014 389 Peterbilt with a 550 Cummins ISX. 2006. It happened a lot last summer and stopped completely this winter and is returning now with the mid 70 May 18, 2010 · From cummins: Maximum allowable air temperature rise over ambient at intake manifold 16. #2 · Jun 30, 2011. 9 24v no start when hot. A few weeks ago an intermittent misfire developed. May 24, 2016 · 24 posts · Joined 2009. Knocks are usually from over fueling injectors. Jun 12, 2024 · Ummins ISX15 Random Overheating. marc670 Bobtail Nov 1, 2018 · Hi everyone, I have a 2008 KW T800 with a cummins isx500 engine 500hp used for heavy haul. Truck is running a bit hot. Just something to look into. Basically your water pump circulates water through the block, tranny cooler, cab and bunk heat exchange units, until it reaches a certain temp, then the thermostat will open up and let coolant into the system from the rad, and will lower the temp at Aug 6, 2017 · Overheating under load. 8L ISM cummins engine. northeast. Also next time it hard starting unplug the lift pump and see if it starts easy. I'm guessing EGR cooler? Feb 26, 2013 · [HR][/HR]Can be the timing or fuel actuatators there are four of them the shut off selinoid is in the middle two front are fuel and timing for the front 3 cyl the rear 2 are fuel and timing for the back 3 cyl also check the internal parts of the fuel selnoid for burs and debris also make sure the mounting screws have a good connection as thats how it has its ground 4 days ago · I drive a 2010 Western Star with an ISX EGR 550hp which is hard to start when hot. After bleeding the system many times and about 500 miles the List of all our delete tunes for Cummins engines. If they are the same temp, or very close, the heater core is likely clogged up. A few months ago I nottice that my coolant exapansion tank is turning a little black inside and I though it's just gunk from the engine running hot during summer with heavy load in California. We have replaced the oil cooler,oil thermostat, and water thermostat with no improvement. It started and I drove about 5 miles then stopped. 0. Fuel injector return test showed 150ml. Air and gas leaks. Apr 27, 2009 · Don't know anything about cummins but with my cats, they are set to shut down if low on coolant or oil pressure. Before changing your turbocharger, please make sure that you have correctly identified the cause of the fault. A cut out test under load would be good way to find out which one is causing it. Fuel return test (with 9012 test fitting in place and measuring just injector return and not injector and CP3 return): Fuel pressure override activated, 1,200 rpm's and 20,000 psi line pressure, 450 ml in 30 seconds. I have a 2006 ISX 450 and the jake brakes sometimes run very choppy and rough, enough to shake the whole truck somewhat violently. Started running hot for some reason up to 215, and the fan attempted to cut on, but cut off right after 2-3 seconds with hesitation. You need to get someone who knows what they are doing to program it the right way. 9/15 cumminsengines. If i tried to start within an hour of shutting it off it took 5-10 seconds to start. Jun 26, 2013 · As the engine/radiator cools, the cap will allow the vacuum to suck back in the coolant which was expelled as everything heated up. :thumbsup: '01 2500 Sport 4x4 5spd w/Fastcoolers, Mag-Hytec, EZ, RV275's, 4" w/o muffler, South Bend, Steering brace, aFe, 2 lo Dec 17, 2023 · Here is an example of the EGR's hot side plate position. Sometimes have to ether it. If it does you got a torn VP44 diaphragm. the DEF tank level is running low and/or the quality of the DEF in the tank is not meeting specifications. Check fuel rail decay. #1 · Mar 24, 2012. In this case there were not. Replaced injectors (OUCH!) and symptoms persisted. If Apr 7, 2007 · My 2006 Peterbilt 379, Cummins ISX engine, has used 4 gallons of coolant this week. Here is some stuff from Cummins about oil consumption. My truck is a 2014 Kenworth T680 with an ISX Cummins. ho vr pd na gx si oy nk et gi