Isx cummins low oil pressure

The two possible sources of fuel in the oil are a malfunctioning fuel injector or a faulty fuel pump head. Nich M. Category: Medium and Heavy Trucks. Satisfied Customers: 8,421. Experience: Expert. Verified. Nich M. and 87 other Medium and Heavy Trucks Specialists are ready to help you. Ask your own question now.

Isx cummins low oil pressure. The lift pump on a Cummins ISX engine is typically located near the fuel tank or on the fuel rail. It is a small electric motor-driven device. ... If you're experiencing low fuel pressure, engine shutdowns, or low engine power, it may be due to a problem with the lift pump or the fuel system in general. ... 12V Cummins Oil Pressure Sensor ...

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-Joy

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.The oil pressure plays a critical role in lubricating and protecting the engine's moving parts, reducing friction and wear. The ideal oil pressure range for a Cummins ISM engine typically falls between 25 to 45 PSI at idle and 45 to 65 PSI at higher RPMs. Low oil pressure can lead to inadequate lubrication, resulting in increased friction ...87 Cummins NTC 400 VIN: 11412277 has low oil pressure when engine is warmed up... starts out around 50 but as temp - 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 at ...The Cummins ISX is the mainstream engine offered by Cummins for over the road applications. It is also used in the largest motorhomes due to the power and torque ratings. ... Oil Pressure: 15 psi (Idle), 35-40 psi (Rated RPM) Fuel Pressure Specs. Through 2002: 2002 & Up: Lift Pump: 10 psi: 10 psi: Gear Pump Cranking: 100 psi: 100 psi: Gear Pump ...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 …

About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...And dilution in the oil? 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.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 Cummins ISX oil pressure sensor is located on the rear of the engine, inside the transmission case. It's easy to locate because it's behind the fuel filter and ECM. The sensor is typically connected to the engine block with two bolts. When replacing the oil pressure sensor, it's important to use the correct type and size for your engine ...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 would me very much appreciatedJun 9, 2562 BE ... Crankcase Pressure High on Cummins ISX 15 and X15 - How to Diagnose & Troubleshoot ... Oil Pressure Gauge at 0 20 80 ... What Causes Low Oil ...

Clear picture where to find it, short video where to find your sensorAll vehicles use an oil pump to pump and pressurize engine oil. An oil pump ensures that oil stays moving and flowing throughout all parts of the engine during operation. A malfunc...Dr. Cummins, have a ISX 79299929 that we did a inframe on. The engine was abused really bad as in when it came in it was pushing oil out the breather, had 9 psi oil pressure at hot idle and the air filter was sucked in so it was eating unfiltered dirt.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.

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pressure data valid but below normal low oil i noticed with many isx owners including my myself is having this low oil pressure issue have checked main and rod bearing ... isb 6 7 low oil pressure at idle hot cummins diesel forum web 1 sep 7 2022 i ve read several threads hereHere are all the Cummins ISX codes available for the Cummins ECM. These Cummins trouble codes pertain to ISX engines built with the EGR system, but pre-DPF (2002 - 2006). Cummins ISX Codes 111-500. 111 Electronic Control Module Critical Internal Failure - Bad Intelligent Device or Component. 115 Engine Magnetic Speed/Position Lost Both of Two ...What Is The Oil Pressure For The Isx Cummins? The oil pressure for the ISX Cummins is 15 psi at idle. Low oil pressure can be caused by a system leak, low oil level, or a clogged oil filter. What Should Oil Pressure Be At Idle In X15 Cummins? The oil …And dilution in the oil? 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.

Cummins isx oil temp too hot ... but in winter time oil temperature rise too slow. But we use semi-syntetic oils and we had no oil viscosyty issues, like oil pressure, fuel milage. Pablo-UA, Dec 6, 2010. Pablo-UA, Dec 6, 2010 #9. Dec 6, 2010 #10. vadim2200 Light Load Member. 128 36. Nov 21, 2010 0. well i think i managed to lower my oil temp, …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.As of 2015, maximum torque values for Cummins ISX truck engines range from 1450 pound-feet at 1200 revolutions per minute for the ISX 400, to 2050 pound-feet at 1200 RPM for the IS...Perform the following steps for the appropriate engine (ISX15 CM2250, QSX15 CM2250 ECF, ISX12/ISX11.9 CM2250, or QSX11.9 CM2250 ECF): Replace the fuel pump per one of the options below: For ISX15 CM2250 engines with two-cylinder pumps and fuel pump gear pump top mount fuel lines, there is a cost effective option to use a fuel pump short block ...Oil Pressure Issue on Cummins ISX15 - How to Fix it? Cummins isx15 oil pressure sensor replacement.#oilpressuesensor #cumminsisx Playlist …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. ...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.CATs love high RPM and hold very high torque at this level. Also causes high head pressure ( Cats usally run in the 55 to 65 range in oil pressures. ) This holds same with Detroits (50-60 PSI). The ISX cummins are build a bit different they run very very low head pressure (30-35 PSI) and develope the most power at 1250 RPM.All vehicles use an oil pump to pump and pressurize engine oil. An oil pump ensures that oil stays moving and flowing throughout all parts of the engine during operation. A malfunc...2007 International 9400i with an ISX Cummins, oil pressure gauge not working engine light came on and shutdown engine, - Answered by a verified Technician ... I have 06 international with a 400 cummins isx engine. The low oil pressure light and high temp lights hav3 come on and the engine has shut down. ...EFFECT. Fault Code: 143. PID: P100. SPN: 100. FMI: 1/18. LAMP: Amber. SRT: Engine Oil Rifle Pressure - Data Valid but Below Normal Operational Range - Moderately Severe Level. Engine oil pressure signal indicates engine oil pressure is below the engine protection warning limit.

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.

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. High Quality Oil Pressure Sensor * Plastic Brass Material * Brass Rectangle Female Connector * 3 Connector * Female/Male Connector/Terminal * Wire Harness Not Included * Sold Individually * Warranty On Oil Pressure Sensor Against Defects In Workmanship & Material From Date Of Purchase ** High Quality Aftermarket Replacement Part (Not OEM) *** *** Replaces OEM Number(s) 4921517 * This Item Is ...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 ...2 posts · Joined 2009. #1 · May 1, 2010. Trying to determine cause of high bottom end pressure. Removing oil filler cap or dipstick this engine pushes out a lot of oil smoke and gets worse as it warms up. The blowby tube discharge appears to be clear. Engine CPL is 8557; Ser#35105225. Any advice/assistance will be greatly appreciated.At 1200 rpm, Im running almost 20 psi. At idle, more like 4-6 psi. When the gauge drops off, running about 3 psi. Im really surprised at the difference between the mechanical gauge and the cluster reading. 07.5 3500 CC - deleted. 65 Cadillac Calais 12V Swap, NV4500 "Bone stock".Dec 12, 2011 · Maybe newer trucks run lower oil pressure. My old Cummins motors ran 60 lbs, and Formula's were at least 50. ... 2007 ISX in my KW oil pressure runs about 16 at idle ... 0. I have an 06 Volvo with a Cummins ISX. My oil pressure has been running on the low end (about 20 idle/30ish running). I only had to add 1 gallon of oil every 15,000 miles. I got my oil changed on 11/14. I drove about 400 miles last night and by the top I stopped my running oil pressure was at about 28/29 psi.Cummins ISX low boost high exhaust temps. I have a 2006 ISX cummins 530 hp with 433,000 miles on it. It is an EGR motor. 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. You might drive 5 miles and it comes out of it.

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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) Jun 16, 2010 · 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. Oil Cooler Thermostat. Click the link above for the thermostat information. You'll either need to pull the alternator, a/c compressor and bracket or you'll need to pull the oil cooler housing to replace the thermostat. You'll need a 19mm or 3/4" allen to remove the thermostat cover plug.3 days ago · The picture on the right is of the updated oil bypass valve. It is located in the oil filter head. There is a 17mm allen plug that you remove and it is right behind that. If you have an early 2250, there was a campaign where they would send you the updated version free. Only takes about 5 minutes to install. 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 ... 57mph) or in 13th at 1250 - 1300 (60 - 62) it runs and pulls the same and gets the same fuel ...559 code is used in ISX (low fuel pressure, as I remember stores when fuel pressure is lower 14 BAR), and it it used in popular in Europe Cummins CRD engines when common rail pressure is lower engine needs (it varies from 300 to 1000 bar depending on engine speed/load and controlled with NPROP solenoid and 559 code is stored for too many reasons on CRD engines)Hello, I own a 2014 KW W900 with a 2013 ISX15. Bought it two months ago and have only worked it two weeks. After the first week it started showing SPN 157 and SPN 95. First code is low fuel rail pressure and second is clogged fuel filters. Both codes turn on the check engine light with the wrench in the middle.The Cummins ISX oil pressure sensor is located on the rear of the engine, inside the transmission case. It's easy to locate because it's behind the fuel filter and ECM. The sensor is typically connected to the engine block with two bolts. When replacing the oil pressure sensor, it’s important to use the correct type and size for your engine ...Nov 6, 2023 · What Is The Oil Pressure For The Isx Cummins? The oil pressure for the ISX Cummins is 15 psi at idle. Low oil pressure can be caused by a system leak, low oil level, or a clogged oil filter. What Should Oil Pressure Be At Idle In X15 Cummins? The oil pressure at idle for X15 Cummins should be around 15 psi. ….

AFA Industries says the first step when installing a Cummins ISX oil pump is identifying which pump you may have. Figure 1 shows the oil pump version with the pinned regulator plug that holds the oil pressure regulator in place in the pump. This pump must use shims upon installation. Figure 2 shows the oil pump version with the thread-in ...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.EFFECT. Fault Code: 143. PID: P100. SPN: 100. FMI: 1/18. LAMP: Amber. SRT: Engine Oil Rifle Pressure - Data Valid but Below Normal Operational Range - Moderately Severe Level. Engine oil pressure signal indicates engine oil pressure is below the engine protection warning limit.The oil pressure plays a critical role in lubricating and protecting the engine’s moving parts, reducing friction and wear. The ideal oil pressure range for a Cummins ISM engine typically falls between 25 to 45 PSI at idle and 45 to 65 PSI at higher RPMs. Low oil pressure can lead to inadequate lubrication, resulting in increased friction ...I have a 97 Volvo Cummins m11 plus, engine fluid lamp coming on after driving 1 mile , I just changed oil pressure sensor and the oil psi is still pass 90 soon as crank on cold engine. ... 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 ...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.SOURCE: 1996 oldsmobile aurora oil pressure. The Aurora is a low pressure oil system. The only solution available at this time is to increase the oil weight. I went o straight 30W to solve the idle alarm issue. Some use 20W oil and that works too. With 20W you will be at 80 to 90psi cold then drop to 20-30psi hot.May 27, 2011. RI. 0. got a 388 pete with a 600 isx cummins. Half way through a service the truck will start losing oil pressure on the highway to around 26 psi and sometimes lower causing the engine shutdown lite to come on. If i change the oil filter the pressure is fine. Cut open filters 1 out of 4 were plugged. Isx cummins low oil pressure, 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., High Quality Oil Pressure Sensor * Plastic Brass Material * Brass Rectangle Female Connector * 3 Connector * Female/Male Connector/Terminal * Wire Harness Not Included * Sold Individually * Warranty On Oil Pressure Sensor Against Defects In Workmanship & Material From Date Of Purchase ** High Quality Aftermarket Replacement Part (Not OEM) *** *** Replaces OEM Number(s) 4921517 * This Item Is ..., Isx Cummins Low Oil Pressure Gauge. It can climb steeper gradients and provides a smoother and more leisurely ride. I've got an isx esn 79404492 with recurring codes 143 oil pressure low, 555 crankcase pressure high, and 1981 dpf data valid but above normal. Cummins is an Interact System designed to boost performance significantly., 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 12, 2011 · Maybe newer trucks run lower oil pressure. My old Cummins motors ran 60 lbs, and Formula's were at least 50. ... 2007 ISX in my KW oil pressure runs about 16 at idle ... , 141 Engine Oil Rifle Pressure 1 Sensor Circuit - Voltage Below Normal or Shorted to Low Source. 143 Engine Oil Rifle Pressure - Data Valid But Below Normal Operating Range - Moderately Severe Level ... Voltage Below Normal or Shorted to Low Source. Cummins ISX Engine Fault Codes (Codes 4000-4499) 4214 Aftertreatment 1 Diesel Oxidation ..., 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 ..., 2010 Cummins ISX 450 Low Oil Pressure Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Noles2013, Nov 10, 2018. Nov 10, 2018 #1. Noles2013 Bobtail Member. 3 3. Nov 10, 2018 0. Hello fellow truckers, My 2010 Cummins ISX 450 lost oil pressure today. Dropped down to about 15psi and never went any lower or higher. Did not get any ..., 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 ..., Ask an Expert. Car Questions. Truck Repair. This answer was rated: ★★★★★. I've got a isx cummins engine that is losing oil pressure, drops from 40 psi …, 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, Oil temp is a 211 and coolant temp is at 209. Technician: Nich M. That's within range. I'm pulling the information from the manual for reference. Typically the oil temperature will run 10 to 30 degrees higher than the coolant temperature under a load. 209 coolant temperature is ok while driving., Hello, I own a 2014 KW W900 with a 2013 ISX15. Bought it two months ago and have only worked it two weeks. After the first week it started showing SPN 157 and SPN 95. First code is low fuel rail pressure and second is clogged fuel filters. Both codes turn on the check engine light with the wrench in the middle., 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 ..., 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 replaced not too long ago. Submitted: 5 …, The ISX changed slightly between 2012 and 2013, so it could be either model engine. These engines had fuel pump failures fairly often and in a lot of cases debris from the failure damages the oil pump. Then low oil pressure could potentially cause serious damage., December 2, 2023. The 12V Cummins oil pressure sensor is located on the outside of the engine block, behind the oil filter on the back of the housing. It is connected to a pressurized oil gallery to measure the current oil pressure of the engine. The oil pressure sensor in a 12V Cummins engine is a crucial component to monitor and ensure proper ..., 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!, Watch out for common signs of decreased engine performance such as a reduction in fuel economy, loss of power, and engine stalling. Warning light on the instrument panel turns on. This is one of the first and most common signs of low engine oil pressure. The latest car models have sensors connected to a warning light., The oil pressure for a 6. 7 Cummins ISB is measured by an oil pressure sensor located on the outside of the engine block. The sensor is connected to a pressurized oil gallery to measure the current oil pressure produced by the engine. It is positioned in the middle of the block on the left side and is used to display oil pressure on the …, 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..., 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. , About every 2500miles the oil pressure goes down to about 20psi. Replace the oil filter and pressure pops back up. I have seen this before, but it's usually caused by extended oil drain interval, or something mechanically wrong., Please support our sponsors and let them know you heard about their products on iRV2. Thread Tools. 10-06-2016, 04:19 PM. borndae2. Junior Member. Join Date: Oct 2016. Posts: 4. Blog Entries: 1. Cummins 400 diesel oil sending unit., Cummins ISX fault codes 418 (h2o in fuel) & 951 (power. Cummins ISX fault codes 418 (h2o in fuel) & 951 (power imbalance between cylinders) keep going off. Have to change dirty fuel filter filter every 3 … read more. Low oil pressure when running., 05/10/2011 11:20 AM. It is more common to get water in the oil rather than oil in the water. It's more a question of viscosity than pressure. The viscosity of the coolant could be as low as 0.3-0.4cps at operating temperature, whereas the oil is still likely to be well over 1.0cps., 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., The ISX changed slightly between 2012 and 2013, so it could be either model engine. These engines had fuel pump failures fairly often and in a lot of cases debris from the failure damages the oil pump. Then low oil pressure could potentially cause serious damage., 01 isx oil pressure up and down - Answered by a verified Technician. ... 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 o ..., OIL PUMP ASSEMBLY FOR CUMMINS ISX OIL PUMP | New# 3687527. TECHNICAL DATA General Information: Cummins ISX Engine Specifications: Year: 2010-2015 Liter: 11.9 CID: 726 Cylinder: L 6 Bore/Stroke: 5.1181-5.1196″, 5.9055″ Compression Ratio: - Firing Order: 1-5-3-6-2-4. Tune-Up Specifications: Oil Pressure At Idle: 13.0 PSI MIN Intake Valve ..., 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., 09 Cummins ISX 435 ST Low Oil Pressure Discussion in 'International Forum' started by redcentury07, Aug 2 , 2014. Page 1 of 3 1 ... My truck has low oil pressure. 20 psi, has been like this since i purchased it at 598k miles. now it currently has 610k miles and at times the truck will shut down when going up on hills at high RPM. I took it to ..., Cummins has relised 4.25, 4.5, and 4.75 wedges to advance the timming as needed. As of right now all the CM871 ISX problem engines ( plugged oil fiters, plugged dpf and doc, low power/sluggish) I have measured static timming on have been retarded. If you have access to Cummins quickserve you can look up static timing specks by engine CPL.