Low oil pressure cummins isx - Cummins..22-26 psi with the engine temp at 180 oil temp..oil pump…. 2007 ihc 9900 500hp isx cummins has low oil pressure with high oil temp. The highest oil psi is 29 but runs 22-26 psi with the engine temp at 180 oil temp will be 220 and if you have heavy loads the oil temp will be 250. The oil pump has been changed and made no …

 
Cummins Isx engine uses a special low-ash formulation that protects exhaust catalysts and diesel particle filters used in most recent low-emission vehicles. Furthermore, it protects against shear-induced viscosity loss. ... Cummins ISX Oil Type. Cummins API CF-4 approved oils can be used in Heavy-duty (L, M, N, ISX, and Signature) and High .... Destiny 2 adept weapons this week

Cummins..22-26 psi with the engine temp at 180 oil temp..oil pump…. 2007 ihc 9900 500hp isx cummins has low oil pressure with high oil temp. The highest oil psi is 29 but runs 22-26 psi with the engine temp at 180 oil temp will be 220 and if you have heavy loads the oil temp will be 250. The oil pump has been changed and made no …the Cummins gerotor pump is a high volume low pressure low head pump. it is easily damaged by metal cuttings or running dry. the flow of engine oil in the 5.9 Cummins is. 1. crankcase to. 2. oil pickup to. 3. gerotor oil pump to. 4. pressure regulator valve to. 5. oil cooler to. 6. filter bypass valve to.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Dealing with low water pressure in your home? This guide explains the potential underlying problems and five simple, effective solutions for fixing them yourself. Expert Advice On ...WARNING!!: ⚠️⚠️⚠️Always use the proper tools and safety equipment to perform this job. Failure to perform the job correctly can result in personal injury or ...STEP 1A: Check the fault codes. Active or inactive counts of Fault Code 415? STEP 2: Check engine control module (ECM) calibration and clear fault codes. STEP 2A: Check if an ECM calibration If a calibration update for this update is available. fault code is available, does the ECM contain that revision or higher? STEP 2B: Disable the fault code. Motor is clean as a whistle inside and oil with new oil and filter. Start motor and oil pressure is 45-50 psi and as the motor/oil warms up the pressure comes down. At 600 rpm and 220 temp on oil the pressure hovers at about 8psi and 20-22 psi at 1400 rpm. About to change oil cooler and t-stat to oil cooler. I’m ready to give up. The fuel pressure sensor on the Cummins ISX engine is located above the front section of the exhaust manifold and is plumbed into the exhaust manifold. It is ... If the fuel pressure reading is too low or too high, there may be a problem with the fuel pump, fuel pressure regulator, or other components in the fuel system. ... The oil pressure ...It's been about 10thousand miles since my last oil change in my 2009 ISX and I just started getting some low oil readings to. I just changed my exhaust back pressure sensor a week or so ago and that's been helping greatly. When I accelerate or am at cruzing speeds of 1200-1300 rpm's my oil pressure is fine, reading about 35-40 psi.Jan 17, 2017 · Jan 18, 2017. #4. Oil pump failing, oil pump pressure relief valve failing, bad crank, connecting rod or cam bearings are about the only sources for low oil pressure. A bad sensor or failing sensor can give faulty reading as well. Test with mechanical gauge for accurate pressure reading. Personally, I'd have an oil sample into the lab last week ... My truck has low oil pressure. 20 psi, has been like this since i purchased it at 478k miles. now it currently has 594k miles and at times the truck will shut down when going up on hills at high RPM. I took it to the dealer, they didnt know much. They told me my oil filter is plugged and they replace it with 4 hours of troubleshooting charges.I've got a 2004 (10/2003) Cummins ISX 435ST in my International 9200-i and my oil pressure gauge has been completely upside down flashing Low Oil Pressure for a month. Now all of a sudden it reads low or 0 pressure and has steady Low Oil Pressure and Stop Engine lights.Volvo ISX Cummins low oil pressure. the problem was the oil filter.the Cummins gerotor pump is a high volume low pressure low head pump. it is easily damaged by metal cuttings or running dry. the flow of engine oil in the 5.9 Cummins is. 1. crankcase to. 2. oil pickup to. 3. gerotor oil pump to. 4. pressure regulator valve to. 5. oil cooler to. 6. filter bypass valve to.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...When you see low pressure on ISX check this video.It's been about 10thousand miles since my last oil change in my 2009 ISX and I just started getting some low oil readings to. I just changed my exhaust back pressure sensor a week or so ago and that's been helping greatly. When I accelerate or am at cruzing speeds of 1200-1300 rpm's my oil pressure is fine, reading about 35-40 psi.Was it more before you had it rebuilt? Maybe newer trucks run lower oil pressure. My old Cummins motors ran 60 lbs, and Formula's were at least 50. 201, Aug 18, 2014. 201, Aug 18, 2014 #3. Oxbow and Cruisser Thank this. Aug ... 2007 ISX in my KW oil pressure runs about 16 at idle and 35-40 under load.Temps are around 180-185 …This check is only done once after the keyswitch is turned ON. Possible causes of this fault code include: • Stuck in-range engine oil pressure sensor reading. • High resistance in the engine oil pressure sensor signal or return lines. Read More: SPN 558 - FMI 13 (Fault Code 432) SPN 100 - FMI 2 (Fault Code 435) B.Detailed Instructions On Finding The Oil Pressure Sensor In The Cummins Isx 15 Engine. To locate the oil pressure sensor in the Cummins ISX 15 engine, follow these steps: Locate the rear of the engine. Identify the transmission case. Find the fuel filter and ECM behind it. The oil pressure sensor should be located in the middle of the block on ...Sep 25, 2021 · Cummins ISX15 CM 2350 with no oil pressure. I just in-framed the engine. I modified the oil pump for higher pressure which in hindsight was probably a mistake. I shimmed the pressure spring 5/8 of an inch using washers. At first startup oil pressure was good. Surprisingly, the oil pressure was already higher than expected at idle (40 psi). Ask Your Own Medium and Heavy Trucks Question. After warming up, oil pressure is 30 running, 15 to 18, at idle. After about 1 hour, 20 running, 15 idle. Turn off truck for 30 seconds, its back to 30 running, 15 to 18 idle. Technician: Mike Mcmillan.If I had a 5.9 with low oil pressure the FIRST thing I'd check is the pressure regulating valve located in the oil filter adapter housing. If a piece of trash gets in the valve and sticks it open or even partly open oil press will drop. If the engine has many miles on it I'd put in a new regulating valve and spring.Advertisement Oil-fired burners are used in many parts of the country as the basic heat source for warm air and hot water heating systems. Most of the home oil systems in use today...Dec 6, 2023 · The oil pump in a Cummins ISX engine is generally located inside the lower part of the engine, usually below and/or to one side of the crankshaft. If you notice increased engine temperature or low oil pressure, it may be time to replace the oil pump. Regular maintenance is essential to extend the life of your oil pump. The novel coronavirus continues to disrupt the world economy. That means oil prices will remain low and so will shares of MRO stock. MRO stock will remain volatile as oil prices st...Hello Nich sirI hhave low oil pressure issue on cummins isx 2013. Oil pressure does not go over 35 psi.Esn 79590818Replaced oil Pressure relief valve already but still issue Oil and filter was replace … read more STEP 1A: Check the fault codes. Active or inactive counts of Fault Code 415? STEP 2: Check engine control module (ECM) calibration and clear fault codes. STEP 2A: Check if an ECM calibration If a calibration update for this update is available. fault code is available, does the ECM contain that revision or higher? STEP 2B: Disable the fault code. Sep 7, 2022 · This is a 6.7 in a 2019 Solaris bus, has 175k KM or a little over 100k miles on it. We have three buses, one engine is already gone with nearly 1300 hours of low oil pressure in severity 1. That's between 83-55 kPa. Second bus has 420 kPa at idle cold startup and drops down to 70 kPa hot. ECU has logged over two hours with pressure under 34 kPa!! How to replace your oil pressure switch on a Cummins ISXThanks for watching ! I truly appreciate each view that I get on each and every video. For those that...Low oil pressure when running. I just rebuilt my Cummins isx 435 sp … read more. Daniel Wilson. Associate Degree. 7,141 satisfied customers. I have a 2005 international 9200 isx 435 hp. The average. Hi, i have a 2005 international 9200 isx 435 hp. The average coolant temperature on the gauge is always around 210 degrees even …55. Jun 6, 2009. Coeur d Alene, ID. 0. I was wondering what other's are getting for oil pressure out of a cummins ISX? I have a 2008 cummins ISX 500HP in a Pete 388. Oil pressure runs about 35-38 while warmed up and running 1200-1400RPM. In my old CAT the Oil Pressure ran 60 +/-. dmg1029, Jun 12, 2010.I lost the oil pressure in my ISX which ultimately shut the truck down. I'm thinking it's the oil pump because she starts when she gets cold and the codes are cleared. Then she gradually loses presssure and after about 5 minutes she shuts down. D.I.D. displayed the following info: Engine Oil pressure value too low/inactive MID128 PID100 FMI1It's random on mine and I think something is wrong with it somewhere. Usually I'll idle at 700 RPM and get around 0.7 to 0.8 gal/hr on idle fuel usage but …I don't recall ever making a delete video. In fact, I would never make a delete video. next,.... 18-20 psi at idle is normal for an ISX with 34-38 above 1000 rpm depending on oil temps. cummins spec is anything above 15 psi at idle. If your oil pressure has fallen off then change the oil a second time and the filters.Having problems with cummins isx 870, 2005. Low power, ... I've got a isx cummins engine that is losing oil pressure, drops from 40 psi to 22 psi every 7000 miles, was doing it every 10000 miles at first. If I replace the oil filter I'm good for another 7000 ...Oct 14, 2020 · Cummins ISX12 350v Sep 17, 2019 · Dr. Cummins, I have a Cummins ISX CM870 ESN:79186190. Engine seems to surge when under a load. EGR valve opens and closes only from 0-15% and seems to correspondence with the engine surge. Sep 29, 2016 ... What causes low oil pressure? This is a common question that I get in the comments section and for good measure, as the oil pressure is what ...Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts. engine shut down on I-5 Portland with low oil pressure light was able to restart about 1/2 hour later. was serviced in Olympia WA 471 miles ago at Cummings. Cummings service in Portland (5:30 PM on FWY) did computer …Cummins diagnostic trouble codes list for ISX, ISF 2.8, ISB, ISC, ISLe, 4ISBe, 6ISBe, ISDe, ISM, QSM, QSX engine control units. ... A low fluid pressure was detected in the dosing unit. Description: The ECM determines that the pressure of the exhaust gas is below the threshold.Jun 26, 2018 · Customer: i have 550 isx cummins that was remaned by cummins 60000 miles ago. ever since new engine was installed the truck has low oil pressure,oil gets 250 on pull,engine temp stays normal. truck wi … read more The Isx engine is a high flow, low oil pressure system , I have a cm 871 and the oil pressure at idle is around 15 - 20 psi, running at highway speeds it's at 30-34 psi, this is a 2008 , before I had a 2011 cm871 and the oil pressure was the same on that engine, I hope this helps you keep calm a bit, as for the shop now you know where not to ...Cummins Isx engine uses a special low-ash formulation that protects exhaust catalysts and diesel particle filters used in most recent low-emission vehicles. Furthermore, it protects against shear-induced viscosity loss. ... Cummins ISX Oil Type. Cummins API CF-4 approved oils can be used in Heavy-duty (L, M, N, ISX, and Signature) and High ...So I just bought a kenworth with a ISX 485ST Cummins and I'm getting low oil pressure at a constant 20psi city streets and highway speeds. And whenever it it goes a little bit below the 20psi mark the engine goes crazy, the check engine light turns on and then the stop engine light turns on and after a half of min or so the truck turns off while running.Sep 17, 2019 · 18-20 psi at idle is normal for an ISX with 35-40 above 1000 rpm depending on oil temps. Specs are: Oil Pressure, 15 psi (Idle), 35-40 psi (Rated RPM) It doesn't sound like you have anything to worry about if that is what you have for oil pressure. Ok. Like I said I recently rebuilt my 2006 cummins isx. It's been about 10thousand miles since my last oil change in my 2009 ISX and I just started getting some low oil readings to. I just changed my exhaust back pressure sensor a week or so ago and that's been helping greatly. When I accelerate or am at cruzing speeds of 1200-1300 rpm's my oil pressure is fine, reading about 35-40 psi.Hi everyone, I got a Cummins ISX15 that’s been having some oil pressure issues. Only thing is I haven’t actually pulled the head off and actually dug deep into it. So the problem before I took it out of the truck was that the oil temperature would rise to 235 sometimes even 245 super fast. Oil temps would get to 235 during parked regens ...Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts. engine shut down on I-5 Portland with low oil pressure light was able to restart about 1/2 hour later. was serviced in Olympia WA 471 miles ago at Cummings. Cummings service in Portland (5:30 PM on FWY) did computer check and said nothing ...Low Oil Pressure Reading on the Gauge. Monitoring the oil pressure gauge is an effective way to detect oil pressure problems in your Cummins ISX15 engine. A low oil pressure reading on the gauge can indicate an issue with the oil pump, oil filter, or other components of the oil pressure system.Jan 4, 2017 ... Crankcase Pressure High on Cummins ISX 15 ... Oil Pressure Issue on Cummins ISX15 - How to Fix it? ... Low or Fluctuating oil pressure? Bad Oil ...Also, make sure it is full of oil. Sometimes simple things can be overlooked and low oil can cause oil pressure to fluctuate. When the pump gets oil, pressure goes up, when pump can't get oil, pressure goes down. ... ISX. 742 posts ... 1997 2500 12V Cummins 5spd 2wd 356k 1994 Jeep Cherokee 4.0 H.O. 5spd 4wd 280k.Only 3 with 2019 6.7L engines. 1 engine is trashed due to low/no oil pressure. All 3 have logged extremely low oil pressure since new. He states the ECU in these buses can log the oil pressure and he confirmed the low oil pressure with a standalone gauge. 2004.5 Dodge SB QC 2500 2wd Cummins 600/6spd manual/3.73 LSD.Nov 2, 2023 · An oil filter that is clogged or dirty can affect the oil pressure in your Cummins ISX15 engine. Regular inspection and cleaning of the oil filters are essential to ensure proper oil flow and maintain the desired pressure levels. Here’s what you need to do: Locate the oil filters in your engine. ISX CM871 low fuel pressure. I am working on a 08 pete with a ISX cm871 the problem i am having is it keeps setting a code for low fuel delivery pressure and fuel filter restriction. These codes are not active all the time but when they do go active the truck losses power. I have changed the fuel filters the fuel prssure sensor and the gear ...What causes low oil pressure Cummins ISX? This can be a number of things, some are general answers, some are more specific to the model and year of the Cummins ISX engine. Clogged / contaminated oil and filters. Engine oil bypass valves. Oil pump failure. Oil pressure relief valve failure. Oil pressure sensor. Leave a comment. Name Email Message.Supply is under pressure by exogenous factors and demand just keeps on truckin'. Here are names I would tap into....XOM I have never seen such a divergence between the Old Worl...Overall, understanding the role and proper location of the Cummins ISX Aftertreatment Fuel Pressure Sensor is essential in diagnosing and resolving any fuel pressure-related issues in the engine. Regular inspection and maintenance of this sensor can help ensure optimal engine performance and minimize potential problems.Oct 2, 2020. 0. Hello I have an international prostar with Cummins ISX and about 900,000 miles has had in frame overhaul about 250,000 miles ago. I have had this truck for the past hundred thousand miles and my oil pressure has always shown between 28-31psi cruising 70mph. Idle 12-13 psi. Has a lot of power and no issues. I just.Aug 10, 2016 ... Low Oil Pressure/Noisy Engine/Overheating/It May Be Time To Replace The Oil Pump In Your Cummins ISX. Highway and Heavy Parts•2.6K views · 13:57.Cummins recommends every 500K on the overhead adjustments. With regards to bearings, I didn't see anything in QuickServe specific to the ISX. Most …About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Cummins..22-26 psi with the engine temp at 180 oil temp..oil pump…. 2007 ihc 9900 500hp isx cummins has low oil pressure with high oil temp. The highest oil psi is 29 but runs 22-26 psi with the engine temp at 180 oil temp will be 220 and if you have heavy loads the oil temp will be 250. The oil pump has been changed and made no difference.Nov 19, 2015 · If I had a 5.9 with low oil pressure the FIRST thing I'd check is the pressure regulating valve located in the oil filter adapter housing. If a piece of trash gets in the valve and sticks it open or even partly open oil press will drop. If the engine has many miles on it I'd put in a new regulating valve and spring. Oil has continued to tumble following OPEC's record-breaking production cut as the coronavirus outbreak craters demand. Jump to Oil plunged to a 21-year low on Sunday. The commodit...Since I now had oil pressure and my mechanical gauge hooked up, I went for a drive to look at pressures. All figures are based on mechanical gauge readings with engine warmed up, with ECT between 180-195 degrees, and outside temp between 68-70 degrees: Idle: 19-20psi. Cruise 1500rpm: 52psi. High Cruise 2000rpm: 70psi.C/S Low oil pressure and engine wont start Cummins ISX. ... Without further tear down what i assume is the low oil pressure caused the mains to run dry and allowed them to spin binding up the crank and causing the fracture. ... The DOHC ISX had a washer that would explode and send shrapnel through the gear train and into the oil pan though.I have a isx that just got rebuilt completely overhauled… we are getting low oil pressure at start up (not warm) 13lbs at 700rpm 21lbs at 1000rpm 35lbs at 1500rpm We have used 2 mechanical gages and they read the same we have replaced oil pump, oil pick up tube, oil cooler, all the bearings cam, crank, and rod, oil regulator, oil filter housing… any info …Introduction: The Cummins ISX 15 oil pressure sensor is a critical component of the engine. It helps monitor the oil pressure in the engine, providing valuable information about its health and performance. By detecting any abnormalities in the oil pressure, the sensor allows for early detection of potential issues, helping to prevent …Apr 14, 2008 ... Possibility that the oil pump's oil pressure relief valve is faulty or has somehow gotten some micro-something lodged in valve. My Cummins with ...Jul 14, 2016 ... cummins isx 15 oil pressure sensor fix, removal and installation. ... What Causes Low Oil Pressure ... low Oil Pressure Cummins, Diagnose and Repair ...2008 cummins isx 15 the oil pressure is dropping random, if i turn off the engine turn back on after 10 sec everything is normal for a random time then again drops, change the oil filter helps for 3000-7000 miles than the same thing, work done : last 10000 miles new oil pressure sensor new crank bearing, new oil pump , 50000 miles egr valves turbo actuator, 100000 miles all dpf system new with ...Also, make sure it is full of oil. Sometimes simple things can be overlooked and low oil can cause oil pressure to fluctuate. When the pump gets oil, pressure goes up, when pump can't get oil, pressure goes down. ... ISX. 742 posts ... 1997 2500 12V Cummins 5spd 2wd 356k 1994 Jeep Cherokee 4.0 H.O. 5spd 4wd 280k.Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts. engine shut down on I-5 Portland with low oil pressure light was able to restart about 1/2 hour later. was serviced in Olympia WA 471 miles ago at Cummings. Cummings service in Portland (5:30 PM on FWY) did computer check and said nothing ...10W-30 oils meeting Cummins specifications may be used in these engines. Check the oil pressure indicators, temperature indicators, warning lights, and other gauges daily to …Overall, understanding the role and proper location of the Cummins ISX Aftertreatment Fuel Pressure Sensor is essential in diagnosing and resolving any fuel pressure-related issues in the engine. Regular inspection and maintenance of this sensor can help ensure optimal engine performance and minimize potential problems.According to Cummins minimum allowable oil pressure at idle at operating temperature is 15 psi. Governed speed with no load is 35 to 40 psi.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...The oil capacity of the 6.7-liter Cummins turbo diesel engine is approximately 12 quarts, and it is available in three variations as of the company’s 2013 model year. As of 2015, t...The first step in cleaning the EGR cooler is to drain the coolant from the engine. Locate the coolant drain valve and use a wrench to open it. Allow the coolant to drain completely into the coolant draining container. 4. Remove the EGR cooler: First, remove the mounting bolts that hold the EGR cooler in place.Nov 3, 2023 · The normal oil pressure for a Cummins ISX engine at idle is around 35-40 PSI. If you experience low or fluctuating oil pressure, it may be time to replace the oil pump. Scratched bores or sticking regulators can also cause low oil pressure. Keep the engine’s oil level and other parameters in check for optimum performance.

Jan 18, 2017. #4. Oil pump failing, oil pump pressure relief valve failing, bad crank, connecting rod or cam bearings are about the only sources for low oil pressure. A bad …. Radio city music hall seating chart

low oil pressure cummins isx

The Angolan kwanza just fell to a record low, and Nigeria and Algeria's currencies aren't doing too hot either. Angola’s economy is in a rough spot, and its currency just hit a rec...Cummins ISX Fault Codes. Fault Code 111. Electronic Control Module Critical Internal Failure. Bad Intelligent Device or Component. Fault Code 115. Engine Magnetic Speed/Position Lost Both of Two Signals – Data Erratic, Intermittent, or Incorrect. Fault Code 122. Intake Manifold 1 Pressure Sensor Circuit – Voltage Above Normal or …Dec 22, 2016. #3. ajala said: Got an 06 Cummins isx, change oil n filter and now oil pressure drops to 10 psi with a cackling noise, using a different oil and filter. If it is a white filter with red writing (sorry forget the name) throw it the hell away and get a new one. We had a problem at Titan with some on our Cummins in the Pete's.Here's the original specifications for oil pressure and a TSB about the new style pump. aluminum. housing. If you have the pump with the aluminum housing you shouldn't be getting the unexpected oil pressures as described in the TSB. I would check the oil for metal. Remove the oil filter and cut it open.Jan 17, 2017 · Jan 18, 2017. #4. Oil pump failing, oil pump pressure relief valve failing, bad crank, connecting rod or cam bearings are about the only sources for low oil pressure. A bad sensor or failing sensor can give faulty reading as well. Test with mechanical gauge for accurate pressure reading. Personally, I'd have an oil sample into the lab last week ... Slight oil pressure drop after only 15-20k miles after oil has been changed (clogging filters). ... am burning 2 gallons of oil between oil changes of 15,000 miles? any help would be appreciated.I have a 2010 Peterbilt cummins 450 isx cm 871 Thanks Big Lou ... You should be having the blow-by checked. Low quality of oil will burn away …20 Common Cummins Isx Air Compressor Problems And Solutions: 1. Overheating: This is a common issue often caused by insufficient cooling or excessive load. Make sure the compressor is adequately ventilated and not overloaded. 2. Oil Leakage: Worn-out seals or gaskets can lead to oil leaks.Advertisement There are two LP gases that can be stored in liquid form with only moderate pressurization -- propane and butane. Isobutane, which has the same simple chemical formul...I don't recall ever making a delete video. In fact, I would never make a delete video. next,.... 18-20 psi at idle is normal for an ISX with 34-38 above 1000 rpm depending on oil temps. cummins spec is anything above 15 psi at idle. If your oil pressure has fallen off then change the oil a second time and the filters. Additionally, the increased ash hold capacity of the Single Module aftertreatment system for the X15 Eficiency and Performance Series engines contributes to the extended DPF cleaning interval. 375110_Cummins_5410641.indd 1. 11/8/17 7:05 PM. CumminsLogo.pdf 1 5/8/09 2:43 PM. Truck Maintenance and Operation. X15 (EPA 2017) This helps lower the temperatures inside the combustion chamber and limits the amount of NOx byproduct. The 2008 update of the engine—the ISX CM871—features a DPF filter. ... The oil pressure sensor for the Cummins ISX engine is an inexpensive part. However, it is known for leaking oil through the base seal of the sensor or electronic ...Volvo ISX Cummins low oil pressure. the problem was the oil filter.12-14-2017, (Subject: Isx oil pressure drops when let off throttle ) Post: #1. Kevinb3373 Established (0 Likes) Posts: 5 Joined: Dec 2017 : Isx oil pressure drops when let off throttle . New member, need help. I have had 2010 prostar with cummins isx for 3 yrs. 778000 miles, have done the egg, dpf delete. ...Also, make sure it is full of oil. Sometimes simple things can be overlooked and low oil can cause oil pressure to fluctuate. When the pump gets oil, pressure goes up, when pump can't get oil, pressure goes down. ... ISX. 742 posts ... 1997 2500 12V Cummins 5spd 2wd 356k 1994 Jeep Cherokee 4.0 H.O. 5spd 4wd 280k..

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