Isx cummins low oil pressure

Fix up your failing lubrication system with a Oil Cooler Kit 4955831 from Highway and Heavy Parts. Don’t risk the health of your ISX; buy high-quality aftermarket 4955831 Oil Cooler Kit from America’s trusted diesel engine parts supplier. At Highway and Heavy Parts, you’ll get a Oil Cooler Kit manufactured in an ISO 9001:2015 certified ...

Make sure to refer to “Refer to Operation and Maintenance Manual” for the recommended oil for your engine. 2. Engine Oil Is Contaminated: Fuel or coolant in the oil will cause low engine oil pressure. Excess fluids in the oil consequently will cause high oil levels in the crankcase. High oil levels in the crankcase will generally always ...Mar 20, 2015. #1. Have 600 horsepower cummins 380000 miles just had oil change start the day with 40 oil pressure but during the day oil pressure kept getting a little lower finally started pulling a load up the mountain oil pressure was down to 20 and loosing power finally got to the top and the high exhaust temperature system light came on ...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...It should cycle and get down to around 200 though under most conditions. Load and road grade will affect that though. 10.4 thank you sir At high idle (1500rpms) the oil pressure is running about 33psi and at low idle (700 rpms) it's running about 18psi.Part Number: 4921517 Specification: Material: Metal, Plastic Condition: Brand New Color: black , Gold Tone, Blue Voltage: DC 12V Pin Number: 3 Thread Size: M14 x 1.5 Size: 61x29x27mm 2.40x1.14x1.06(L*W*H) Applicable models: Fits for Cummins ISX ISM ISX11.9 ISX15 Engine Fits for Peterbilt 388 2008-2011 Fits for Peterbilt 385 2003-2004 Fits for Peterbilt 385 2006-2007 Fits for Peterbilt 387 2003 ...

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.P180240 - Cummins ISX Oil Pressure Relief Valve | 4357177; P180240 - Cummins ISX Oil Pressure Relief Valve | 4357177. Manufacturer: PAI Industries. Price: CA$71.94. Current Stock: ⓘ Limited Stock 🗨️ Request Availability & Alternates ...Many who get a hold of one that have never ran a 91 thru up to the ISX are startled by how low that oil pressure is thinking and oil pump is bad yada yada yada yada something's wrong know...nothing's wrong at all.. ... but That seems like good oil pressure for a Cummins. Navtech, Jun 8, 2019. Navtech, Jun 8, 2019 #7. KB3MMX and Trucker Kev Paid ...Compatible with Cummins ISX ISM ISX11.9 ISX15 2003-2015. Professional Installation is Highly Recommended Quality tested - this sensor has undergone try-on and material testing to ensure a quality fit and reliable performance.Joined: Jun 2013. RE: CM871 fuel pressure delivery. if it is losing its prime or getting air in the fuel system, the sound of the electric pump will change ad the air goes thru it. You should listen for the electric pump changing pitch or sound... getting louder.softer, etc. as it runs for its 2 minutes with the key on and engine not running.

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.Nov 30, 2565 BE ... Comments16 ; Low oil pressure 12 valve Cummins ( how to fix / check ). CUTTERUP ROB · 8.9K views ; How to Install a Cummins Oil Sensor | No Oil ...40 F outside air temp. Start and idle for 10 minutes. Drive 5-8 miles in 10 minutes. Oil Pressue Normal. Engine off for 5 minutes. Restart. Oil Pressure Low at idle Drive 30 miles highway Oil Pressure Normal ,then 10 miles city Oil Pressure Low at idle. From my obervation, the oil pressure drops at around 1300 RPM's after the engine is warm and ...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.

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About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Best Answer. Cummins (OEM) 12 valve (single wire) oil pressure sensor is located below the injection pump and could be in front of or behind injection pump support bracket. The location was ...Yes I am sure it is too low and I have been to Cummins about it because the truck is new and under warranty. They won't give me a straight answer and reckon its running alright. ... Fan is going On for coolant temperature, oil temperature, AC freon pressure. Snailexpress, Apr 3, 2016. Snailexpress, Apr 3, 2016 #8. Mar 30, 2019 #10. …The tappets in the fuel are prone to failure and when they fail they send metal through the system. That's not necessarily your problem, but if you don't know if the tappets have been updated I would recommend removing the fuel pump head and inspecting the internal components. Low oil pressure: click here.Oil pressure for ISX as I understand it is 35-40 psi @ rated rpm, what would be considered low oil pressure? At what - Answered by a verified Technician ... I have a 2007 kenworth t2000 with a Cummins isx I want to know what the engine oil pressure should be when we started up cold it's about 65/70 psi when the engine coolant temp is around 180 ...

You just need a gauge that reads 0 to 100 psi. The manual has you take readings off of the oil cooler I believe. You'll also need a line and an adapter. Inspect the sensor though, if it's cracked and/or leaking oil definitely replace it. Oil pressure: click here. Click the link above for the information.Replaced oil pump. Cummins ISX15 still no oil pressure. Replaced oil pump. Removed and checked oil cooler for possible blockages. Oil cooler is good. No blockages between oil pump and oil filter. Cranked the engine with injector harness disconnected. With a loose oil filter, no oil spills out (from the filter housing) after 30 seconds of cranking.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 ...The Cummins ISX fuel pump actuator is located on the back of the injection pump, on the lower side of the driver's side of the engine, near the front and just above the level of the frame rail. It controls the amount of fuel going into the rail and regulates the rail pressure. If you're experiencing symptoms such as poor starting, loss of ...May 5, 2013 · 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. 4921501 Oil Pressure Sensor Replacement for Cummins N14 ISM 3084521 9047113 1 offer from $21.99 Oil Pressure Sensor 4921511 for Cummins Dodge 5.9L 24V Engine 1998 - 2002 fits Dodge Ram 2500 3500, Replaces 5012991AD 4326849 5011434AA 5012991AA 5012991AB 5012991AC by I-JoyI have a 2016 peterbilt 567 with the ISX cummins. I have an issue with my temp gauge. ... Looked at the truck it had low injection control pressure. ... I have a 2005 9200 isx same problem with the six oil pressure gauge. Changed the oil pressure sensor. Now it stays at 10 psi and goes back down after 10 secs of acceleration.Oil pressure at 2300rpm is 30-32psi Checked pressure with oil filled guage on hydralic hose and oil pressure was 10psi at idle and 30 psi at 2300rpm at operating temp. engine had to be overhauled last year at 246,000 miles after overheating and melting #6 piston. It has about 800 miles on it since the overhaul.The low oil pressure is usually temporarily corrected by a filter change. Usually leaking EGR valves throw EGR temp too high, Turbo inlet temp too high and can cause excessive regens. Usually the first thing to do is make sure your EGR differential pressure sensing tubes are clean, and that the venturi pipe is also clear so the EGR differential ...Low oil prices during coronavirus have consumers paying less, but the ramifications for the economy could negatively impact us all. As people around the world continue to practice ...

It is a 2010 KME with the Cummins ISX and I am trying to find a bulletin or campaign about this issue. ... If it hasn't hydrolocked yet it could still be good maybe. They should of pressure tested it with the oil pan off to watch for coolant coming down the liners ... APU has code 61 low or high... dismag posted Apr 27, 2024 at 2:30 AM.

I have a 2001 cummins isx 400hp. It has 770k miles on it. It will run about 1500 miles and the oil pressure falls off steadily. I change the filter and it comes right back up. If I use the lf9001 filt … read moreAlso, 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.Posts: 2,312. Joined: Jan 2018. RE: Low oil pressure, again. Or its at that mileage where its all sooted up. Oil passages maybe clogged. So changing the oil a lot more frequently may show positive results. Like a couple 5000 mile oil changes and extra filtration. 30-35 psi on a fresh oil change is a bit low.Step. Description. 1. Locate the air intake manifold in the engine compartment. 2. Look for a sensor attached to the air intake manifold. This sensor is the barometric pressure sensor. 3. If you are having trouble locating the sensor, consult the vehicle's manual or contact a professional mechanic for assistance.I think the ISX uses high flow rather than high pressure. It holds 45 quarts of oil, after all. joe __________________ 2008 King Aire 4562, Spartan K3(GT) w/ Cummins ISX 600 2014 Jeep Grand Cherokee Overland 5.7L V8 Hemi w/ Blue Ox Aventa LX Tow Bar and baseplate, SMI Air Force One brake(05-23-2018 ) Signature620 Wrote: The pressurised oil is supposed to travel to the head from the block, then to the cams, then to the rockers. So when a cam bearing spins it will increase it's diameter and/or shift forwards or backwards. This allows oil that would normally be under pressure between the cam and rockers to be released into the overhead, so much that the oil pump can't keep up ...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.At Highway and Heavy Parts, you'll get a Oil Cooler Kit manufactured in an ISO 9001:2015 certified facility, ensuring quality and consistency for your Cummins ISX. Each part is crafted with hard-wearing strength and durability to ensure your 4089583 Oil Cooler Kit can withstand the rigors of the road. Guaranteed for fit and function, HHP ...Above 55 mph, each 1 mph increase in vehicle speed decreases fuel economy by 0.1 mpg. Worn tires provide better fuel economy than new tires, up to 7% better fuel economy. Used lug drive tires can get up to 0.4 mpg better than new lug tires. Ribbed tires on the drive axles provide 2-4% better fuel economy than lugged tires.Apr 24, 2024 · 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.

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Oil Pressure Issue on Cummins ISX15 - How to Fix it? Cummins isx15 oil pressure sensor replacement.#oilpressuesensor #cumminsisx Playlist …When the filter is plugged, the bypass valve opens to ensure oil flow to the motor. If you have the old style valve that leaks, it causes lower pump output pressure. The new bypass valve is more properly calibrated and also seals better when closed. There are 2 sizes of plug for the new bypass valve. 16.5 mm and 19mm.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.Hi I have Cummins isx engine oil pressure come low ven oil temperature more 235.can you tell me what I do. Mechanic's Assistant: What is the complete model and serial number of your machine? 79344637 engine #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.Oil pressure values depend upon the model of an engine and the speed it travels. It usually ranges from 25 to 65 psi. For a Cummins ISX15, the oil pressure is typically 42 psi at a speed of 65 mph. It can be a sign of issues if your oil pressure is too high or too low. Low oil pressure prevents the oil from getting to the engine. Thus, it ...I have a 09 Cummins isx just did a complete overhaul and just did 1st oil change after 1000 miles and oil pressure is running 30-32 psi under a … read more. Mike Mcmillan. Triage Tech/Shop Foreman. Associates. 689 satisfied customers.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 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).Tree position female connector kit. Cummins ISX ISX15. Oil pressure Connector. EGR differential pressure. Freightliner. Barometric pressure. Delta pressureWhen you see low pressure on ISX check this video.6 posts · Joined 2016. #1 · Aug 7, 2017. hi i have a 1993 cummins in my dodge w200 and it have low oil pressure, When it's cold it have 65-70 psi, and when its hot it have 5-10psi at idling, i have a mechanical oil gage, So I decided to rebuild the engine, the old mains and rod. bearing Was pretty worn out but the crank Looked really good no ... ….

Hi I have Cummins isx engine oil pressure come low ven oil temperature more 235.can you tell me what I do. Mechanic's Assistant: What is the complete model and serial number of your machine? 79344637 engine #Dec 12, 2015 #1. mitmaks Road Train Member. 2,451. 1,953. May 16, 2014. 0. Im driving 2013 KWT660 w isx15. On startup it has 40+ psi, once warms up drops …jetman said: Years ago Cummins and Valvoline got together and came up with a fix for the ISX oil consumption problem. #TSB150163 which includes the use of a special oil, Valvoline Premium Blue "Restore" and oil filter LF14000NN. The oil was very expensive at $75/gal and was designed to cleanup stuck rings.I have a 2000 w900 with a cummins ISX engine (SN 14003098) with an oil pressure issue. While driving at 1500 rpm it went - Answered by a verified Technician ... Low oil pressure is caused by excessive bearing tolerances, relief/bypass valve problems, oil pump, leaks that would cause a drop in oil pressure, or any loss of oil flow within the ...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 ...The 5.9 Cummins oil pressure at idle should be within the normal range. A low oil pressure reading at idle may indicate an issue with the engine. We will explore what is considered a normal oil pressure reading at idle for a 5. 9 Cummins engine and discuss potential causes of low oil pressure.The engine will run fine and strong but will be consuming oil. Cummins changed the design of the top of their liner after discovering this premature issue to prevent the carbon build up on the top of the piston edge. ... 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 ...Order your New Oil Pump Assembly 4309500 today! From diagnosis through delivery, we're Highway & Heavy Parts! Shop Oil Pump Assembly for Cummins ISX, ISX15 2881757 at Highway and Heavy Parts. 2 Year Warranty, Quality Service, Delivery in 2-Days or Less to most areas. Isx cummins low oil pressure, Worn or damaged oil pick-up tube o-rings: The o-rings that connect the oil suction manifold to the oil pump can become worn or damaged over time, which can cause low oil pressure. Replacing the o-rings is usually the best way to fix this problem. These o-rings along with the oil pump are both common issues on the DD series engines., Where oil pressure sensor ism cummins? Updated: 10/22/2022. Wiki User. ∙ 9y ago. Best Answer. Engine Oil Rifle Pressure Sensor 1 is located on the left side of the engine block, about 1/3 way to ..., National RV Owners Club. Freightliner Owners Club. Join Date: Sep 2017. Location: Rice Lake, Wisconsin. Posts: 790. 350 HP. 8.3 ISC Oil Pressure Sensor. Replaced my old 3408428 maxed out at 80 PSI. With the new 4921511 Threads and plug is all correct. Amazon $19., 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., The Cummins ISX fuel pump actuator is located on the back of the injection pump, on the lower side of the driver's side of the engine, near the front and just above the level of the frame rail. It controls the amount of fuel going into the rail and regulates the rail pressure. If you're experiencing symptoms such as poor starting, loss of ..., Cummins recommends every 500K on the overhead adjustments. With regards to bearings, I didn't see anything in QuickServe specific to the ISX. Most manufacturers recommend monitoring the oil pressure and only consider a bearing roll-in if the pressure drops too low. This is not a problem of yours right now!, 🚗 Compatible with Cummins ISX ISM ISX11.9 ISX15 2003-2015. 🚗 Quality tested - this sensor has undergone try-on and material testing to ensure a quality fit and reliable performance. 🚗Please check pictures for more detail，check the compatibility information to verify the correct OEM part number., Lubricating Oil Recommendations The primary Cummins recommendation is to use SAE 15W40 oil for normal operation at ambient temperatures above 5°F (-15°C). Consult the Owners Manual or a Cummins distributor for recommendation concerning colder operating temperatures. * A non-low ash oil meeting CES 20078 (API CI-4/SL) can be, Cummins ISX15 CM 2350 with no oil pressure. I just in-framed the engine. I modified the oil pump for higher pressure - Answered by a verified Technician ... Good afternoon Nick Working on isx 15 Oil pressure seems low would like a second opinion Coolant temp 203 Oil temp 210Oil pressure on physical gauge 15psi at 700 rpm 26psi at 1000rpm 32psi ..., 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..., News from the American Petroleum Institute said that crude oil stocks surged by 3.6 million barrels last week....LOW News from the American Petroleum Institute said that crude oil ..., 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 …, It is a 2010 KME with the Cummins ISX and I am trying to find a bulletin or campaign about this issue. ... If it hasn't hydrolocked yet it could still be good maybe. They should of pressure tested it with the oil pan off to watch for coolant coming down the liners ... APU has code 61 low or high... dismag posted Apr 27, 2024 at 2:30 AM., May 30, 2561 BE ... ISM Cummins Oil Pressure ... How to replace the oil pressure sensor on a Cummins ISM | ISX engine ... Fixing low oil pressure on Chevrolet Silverado., Aug 10, 2559 BE ... 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., I have Volvo truck with Cummins M11 engine. I got some low oil pressure warnings just a few days ago, both yellow and red lights. I had changed my oil pressure sensor and also the connector for the sensor but the problem is still there. What might be the reason, engine is about 300k after the overhaul, oil levels are good..., The Cummins store did not have the part in stock either. It can be an expensive little piece of equipment as it can cost around $1000. Some dealers have replaced this sensor with a simple switch. It simply shows on or off and does not do a lot of sensing. But the switch is a lot cheaper than the sensor. Cummins Oil Pressure Sensor Socket, The normal oil pressure for a Cummins ISX at idle should be between 15-40 PSI. If the oil pressure is consistently below this range, it may indicate a problem with the …, Part Number: 4921517 Specification: Material: Metal, Plastic Condition: Brand New Color: black , Gold Tone, Blue Voltage: DC 12V Pin Number: 3 Thread Size: M14 x 1.5 Size: 61x29x27mm 2.40x1.14x1.06(L*W*H) Applicable models: Fits for Cummins ISX ISM ISX11.9 ISX15 Engine Fits for Peterbilt 388 2008-2011 Fits for Peterbilt 385 2003-2004 Fits for Peterbilt 385 2006-2007 Fits for Peterbilt 387 2003 ..., The 5.9 Cummins oil pressure at idle should be within the normal range. A low oil pressure reading at idle may indicate an issue with the engine. We will explore what is considered a normal oil pressure reading at idle for a 5. 9 Cummins engine and discuss potential causes of low oil pressure., Oil stocks have been under pressure lately and the latest rebound may be getting cut short as energy prices turn lower. Here's why. Oil stocks are under pressure as energy prices t..., Signature and ISX CM870 Key Switch Battery Supply Circuit Section 19 — Electronic Engine controls Page 19-55. Intake Manifold Pressure Sensor (019-061) Remove. Slide the locking tab on the top side of the connector to the unlock position. Press down on the tab near the end of the harness connector where the harness wires lead into the connector., New Shop Info: https://goo.gl/maps/HzwG98iioszjQWRP6TAT Express Inc.972-225-30174140 Langdon Rd.Dallas TX 75241Now Hiring!Here at TAT Express, we are alw..., Jan 1, 2014 · 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. , 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., low oil pressure at idle. 2003 2500 2wd auto, 355k miles, idles around 650 to 700 rpm. After engine warms up to the 195 to 200 range the oil pressure will randomly drop well below 10psi while truck is idling. while driving pressure is around 60psi. When I come up to stop light I'll hear ding, and check gauges light comes on., 2015 Peterbilt 389 with Cummins ISX15 CM2350 I am having fuel rail pressure problems. I have the insite program and have ran various tests and the fuel pressure on the rail is bleeding off. No external leaking. I have had the High pressure fuel pump apart to make sure my tappets are free and tested the check valves. Everything checks out., The pressure had dropped to 5,000 psi at 1500 rpm and idle was … read more. Nich M. Cummins/Caterpillar Techni... Vocational, Technical or Tra... 8,412 satisfied customers. I have a 2004 International 5600 with a cummins ISX 450. It. I have a 2004 International 5600 with a cummins ISX 450 . It has a code PID 95 FMI 4 which says it is a fuel ..., Make sure to refer to "Refer to Operation and Maintenance Manual" for the recommended oil for your engine. 2. Engine Oil Is Contaminated: Fuel or coolant in the oil will cause low engine oil pressure. Excess fluids in the oil consequently will cause high oil levels in the crankcase. High oil levels in the crankcase will generally always ..., 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., Maintain all required fluids and be sure these are not contaminated to avoid issues with the engine. With all that being said, let us take a look at the common causes of the Cummins ISX15 oil pressure problems. 1. Low engine oil level. The very first thing to observe is the oil level., Re: P0087 Low Fuel Rail Pressure. Only things left are FCA and pump. Agreed, I guess you could add injector leakage also but I would think other codes should be present. 2014 RAM 3500 (Aisin) 3.73 4X4 Limited Crew Cab Long Bed DRW. Oil Bypass Filter, Fuel Filtration Kit and 50 Gallon auxiliary fuel tank., What causes crankcase pressure in a Cummins ISX? The most common answer is the crankcase filter being clogged up, or a malfunctioning valve in the filter. The filter should be replaced every 125,000 miles or you can install a maintenance free filter. Other instances could be the crankcase pressure sensor is malfunctioning, but that would ...