Isx cummins low oil pressure

Took off from the light and the oil pressure light went off. Got to work and checked oil. Oil was full. At idle evic says 32psi oil pressure. When light comes on it drops to 2-1-0. Take off and about 10 seconds after taking off the light goes off and it goes back to in the 30s. I had an appointment Monday to get the truck deleted.

Ltngdrvr. 14690 posts · Joined 2014. #8 · Sep 8, 2020. If there's that much pressure in the crank case, then it should be filling the CCV filter and oil should be running down the tube to the turbo inlet. And, doesn't have to be rings, could be a broken piston. Could have eaten the dreaded heater grid bolt and broke one.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.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 ...Oil Pressure Issue on Cummins ISX15 - How to Fix it? Cummins isx15 oil pressure sensor replacement.#oilpressuesensor #cumminsisx Playlist …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.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 ...Low Oil Pressure on a fresh overhaul ... 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 ... 2007 ISX in my KW oil pressure runs about 16 at idle and 35-40 under load.Temps are around 180-185 coolant and 215-225 oil ...

The Cummins L10 engine has an oil capacity of 38 liters, or approximately 10 U.S. gallons. The filter has a capacity of approximately 2.6 liters (0.7 gallons), and the oil pan has ...Oil pressure gauge bouncing cummins ISX Discussion in 'Trucks [ Eighteen Wheelers ]' started by ivo, Jul 5, 2014. Jul 5, 2014 #1. ivo Bobtail Member ... on the computer nothing it just doing it whenever it wants.Most of the problems that i was doing research are for lower pressure nothing for higher presure on ISX ...That is too low. At hot idle, 15 lbs should be the lowest but 10 is still good. At running rpm, it should be 40-60 lbs. You could have a bad pump or the transfer tube seals between the pick up and the pump may be bad and it is drawing air as well as oil causing this. There is a also a valve by the oil filter that could be bad.n 10W-30 and 15W-40 oils meeting Cummins specifications may be used in these engines. n Check the oil pressure indicators, temperature indicators, warning lights, and other gauges daily to make sure they are operational. n Check the oil pressure, coolant temperatures, DEF level and other engine parameters daily via the OEM instrument panel or gaugeHello, 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.It should default to max pressure at 24-26000psi. Should rattle like an old 12v. Don't run longer than 30sec this way. They aren't that expensive so don't cheap out on eBay or Amazon (Chinese junk). Get genuine Cummins/Bosch.Oil 22 temp around 140 deg. Oil psi should be checked as stated below, If there was a true issue a check engine/stop engine light would be present.The oil temp is normal @230 degrees you will throw a fault code @ 250 a stop engine light will come on and shut the engine down. Oil Pressure at Idle (minimum allowable at 93°C [200°F] oil temperature)

Attached are details of defective liners leading to high oil consumption. Cummins usually addressed out of warranty issues using "Policy" dollars. If outside base warranty then easy to get "Policy" help at 75 percent up to 4 years and 400,000 miles or 50%-25% at up to 500,000 miles. ... The problem is the were using a 3 stone hone on the liners ...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. Fuel System for Cummins Natural Gas Engines. Cummins Engineering Standard CES 14624 Minimum Methane Number: 75 Minimum Lower Heating Value: 44,194 kJ/kg [19,000 BTU/lbm] Note: Both the methane number and lower heating value criteria must be met to pass a given fuel. Cummins Inc. Box 3005 Columbus, IN 47202-3005.2007 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. ...

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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.You should change the crankcase filter on ISX Cummins regularly. It is recommended to change it every 15,000 to 25,000 miles or as specified in the manufacturer's guidelines. Keeping a clean filter helps maintain engine performance and prolong the life of your Cummins engine.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 ...09 Cummins ISX 435 ST Low Oil Pressure Discussion in 'International Forum' started by redcentury07, Aug 2, 2014. Page 3 of 3 < Prev 1 2 3 ... Has anyone tried adjusting oil pressure?? Dieselpower in PA, Feb 16, 2017. Dieselpower in PA, Feb 16, 2017 #21. Trucking Jobs in 30 seconds. Every month 400 people find a job with the help of TruckersReport.

oil pressure sensor to see if the issue gets corrected. Aerated oil can cause intermittent oil pressure issues. Usually the o rings on the pickup tubes but I have yet to see this in a GHG17 engine. Jim Langeveld 8 posts since Feb 22, 2019 Re: DD15 - SPN 100 FMI 1 - Engine Oil Pressure Too Low Oct 28, 2020 3:44 PM Thank you Jon for your input.Low/erratic fuel pressure will not necessarily throw a code. Most engines don't even use a fuel pressure sensor. Send me the engine serial number so I can do some research on Cummins QuickServe and see if this thing even has one. If in fact this thing is de-rating itself, it should be at least turning on a check engine light at the same time.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.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.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 ...ISX12N (2018) The 2018 ISX12N continues the evolution of emissions-leading natural gas engines from Cummins. Certified to the California Air Resources Board and Environmental Protection Agency's (EPA) Optional Low NOx emissions standard of 0.02 g/bhp-hr, it has 90% fewer NOx emissions than the current North American EPA standard. With 400 hp ...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.Here's an update. Talked to Cummins Filtration today at MATS. It seems that the drop in oil pressure is not unheard of. They blamed it on changes in oil formulation and ultra low sulfur fuel. The last time I changed the oil filter I'd changed from the LF3000 to a LF9009. I was told that my troubles should be over with the up-graded filter.Providing the Motor Coach market with a dependable heavy-duty platform, developed from a fully integrated and stable engine architecture and system design, the ISX12 provides motor coach entities with the benefit of low change. Available throughout 2018, the Buy America-compliant ISX12 will continue to use the established Cummins Aftertreatment ...Go rent a coolant pressure testing kit from a autoparts store,with the engine off pressurize the system to 16psi if you loose pressure then you know you have a leak in the system ie(EGR/Head Gasket failure).Also pressure test the rad cap.This is a easy test to do and will give you a idea if the dealer doesnt want to cover a blown Head Gasket ...Low oil pressure can indicate a problem with the oil pump or other engine components. Inspecting the oil pressure sensor is another important step. The sensor provides valuable information about the engine's oil pressure levels. ... Read More Cummins ISX Oil Leak Driver Side: The Ultimate Guide to Identifying and Resolving the Issue. 6.7 cummins.

1100 posts · Joined 2009. #2 · Jun 9, 2011. Just to be exact, coolant system always runs under pressure (about 15#). What is not. normal, is to introduce exhaust into the coolant which forces some out into the overflow. bottle. I see you have an Edge juice (hot). You've blown your head gasket more than.

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.Here's an update. Talked to Cummins Filtration today at MATS. It seems that the drop in oil pressure is not unheard of. They blamed it on changes in oil formulation and ultra low sulfur fuel. The last time I changed the oil filter I'd changed from the LF3000 to a LF9009. I was told that my troubles should be over with the up-graded filter.This is a 2010 ISM engine. Please note that the ISX engine sensor location will be slightly more to the rear of the engine on the drivers side look for more ...Isx oil pressure low? Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Vivaspin, Dec 19, 2020. Page 2 of 2 < Prev 1 2 ... We have plugged in the computer( i dont know what its called) that has the cummins software and it read the same as the gauge. Oil changes and filter change never made a difference.The Cummins Pressure Regulator Valve 4009956 is used primarily on Euro III 15 liter ISX/QSX engines. Specifications. Shipment Height. 1 In. Shipment Length. 4 In. Shipment Width. 3.75 In. ... Cummins Pressure Sensor. Part # 4954245. $466.27. Add to cart. Save to My Garage. ... Cummins Oil Gauge Tube. Part # 4948168. $65.66. Add to cart. Save to ...Jun 27, 2019 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... The Cummins Pressure Regulator Valve 4009956 is used primarily on Euro III 15 liter ISX/QSX engines. Specifications. Shipment Height. 1 In. Shipment Length. 4 In. Shipment Width. 3.75 In. ... Cummins Pressure Sensor. Part # 4954245. $466.27. Add to cart. Save to My Garage. ... Cummins Oil Gauge Tube. Part # 4948168. $65.66. Add to cart. Save to ...

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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.This common problems are based on my own experience with this engine. No all CUMMINS ISX engines are going to present all this problems but at least they are...Attached are details of defective liners leading to high oil consumption. Cummins usually addressed out of warranty issues using "Policy" dollars. If outside base warranty then easy to get "Policy" help at 75 percent up to 4 years and 400,000 miles or 50%-25% at up to 500,000 miles. ... The problem is the were using a 3 stone hone on the liners ...Jan 31, 2567 BE ... ... Low oil pressure? If so, your Cummins ISX may be experiencing lubrication system issues. As your ISX's lubrication system wears or fails, it ...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 moreHere'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.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 moreMay 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.Trent389 Bobtail Member. I have a 2014 389 Peterbilt with a 550 Cummins ISX. Oil temp is running way too hot. 250 plus when loaded. Truck is not being used until this is resolved. The rad was replaced a month ago and coolant temp rarley goes above 195. Stays about 180 most of the time.Here 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 ... ….

LOW crank case pressure. Also, after oil change, oil pressure is good and where it needs to be. After 5 rhousand miles...oil pressure starts to get lower. Changed the oil and filter, oil pressure back to normal. Then oil pressure starts to drop after 3 thousand miles. Changed the oil and filter again, oil pressure back to normal.6k. 4. Location:Roaring Spring, PA. 1 Vehicle. Posted January 23, 2014. This issue surfaced at a Technology and Maintenance Council (TMC) meeting several years ago. Late model Cummins ISXs had an issue with oil and fuel filter plugging. They "blamed" it on the oil and fuel. Let the finger pointing begin continue.If the oil pressure gauge on your Toyota is fluctuating or not working at all, the oil pressure sending unit may be the cause of the problem. The first thing to do with any oil pre...Sodium is a mineral that is essential for human health. It helps the body regulate fluid levels, blood pressure, and muscle and nerve function. Sodium is a mineral that is essentia...BUY THIS OIL PUMP ASSEMBLY FOR CUMMINS ISX TODAY!!! Click here to shop: https://tinyurl.com/bdznfcebGet the right oil pump assembly for your engine & speak t...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 moreAug 29, 2015 · The pressure can drop on a good engine to 10psi on a hot engine and it is still in the good range. This drop was the cause that Dodge put in the computer controlled guage to stop complaints about the oil pressure. You said that the pressure will drop to 20psi at idle. That is normal and a good pressure. Technical Service Bulletin. Subject. High Pressure Fuel Pump Performance Test and New Service Tool to Assist in Troubleshooting Fault Code 559. Warranty Statement. The information in this document authorizes specific changes to the repair practice for failures covered under product warranty coverages. Contents.Low oil pressure can indicate a problem with the oil pump or other engine components. Inspecting the oil pressure sensor is another important step. The sensor provides valuable information about the engine's oil pressure levels. ... Read More Cummins ISX Oil Leak Driver Side: The Ultimate Guide to Identifying and Resolving the Issue. 6.7 cummins.Mar 28, 2021 · 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 ... Isx cummins low oil pressure, An engine oil pressure switch or oil pressure sensor is used by the engine control module (ECM) to monitor the lubricating oil pressure. For engines with an oil pressure switch, the switch is normally closed when the engine is not running and open when oil pressure is present. For engines with an oil pressure sensor, the ECM will detect a low, 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., Jan 4, 2560 BE ... Cummins ISX… Low or Fluctuating oil pressure? Bad Oil pressure sensor and dirty oil filter… Sturgell Trucking LLC•4.6K views · 16:34 · Go ..., 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., 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 …, 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., ISX12 (2013) View Specifications Request a Quote. Power. 310 - 500 hp 231 - 373 kW. Torque. 1150 - 1650 lb-ft 1559 - 2237 N•m. Product Availability. North America, Africa Middle East, Latin America, Asia Pacific, Europe. Select an application., The pressure can drop on a good engine to 10psi on a hot engine and it is still in the good range. This drop was the cause that Dodge put in the computer controlled guage to stop complaints about the oil pressure. You said that the pressure will drop to 20psi at idle. That is normal and a good pressure., Oil Pressure Relief Valve Cummins ISX (4357177) 4357177D. $19.90. Shipping calculated at checkout. Low stock - 3 items left. Add to cart. Pickup available at DDTP STORE ONLINE., Hey Sir, im having an issue with my Peterbilt with cummins isx. Getting the following code, engine oil rifle pressure code 415. Driver says when he goes over 65 the code comes up on the dash and shutdown code flashes. Do you think its needing an oil change with new filter? Currently has 14000 on oil., 2009 Cummins ISX CM871, rebuilt with new oil pump 150,000 miles ago. had normal Oil pressure Idle 20psi 1300rpm 40psi Then one day after pulling a grade I noticed high oil pressure 1300rpm 60psi and fluttering up/down After I shut down for a few hours, I started the truck and ran 6 hours home while it had normal pressure 20 idle/40 @1300rpm, If you have high blood pressure or heart, liver, or kidney problems, your health care provider may suggest you lower your sodium intake. Look for these words on labels: low-sodium,..., cummins ISX15 oil pressure Discussion in 'Trucks [ Eighteen Wheelers ]' started by mitmaks, Dec 12, 2015. Page 2 ... If you are running ISX, oil pressure will be your smallest problem. sirscof, Dec 13, 2015. sirscof, Dec 13, ... Also replace oil pressure sending unit just to help narrow it down., 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 ..., Easy approach to taking care of crankcase pressure fault codes 1942, 0555 and 0556 by replacing the crankcase pressure sensor and installing a maintenance fr..., The Cummins Pressure Regulator Valve 4009956 is used primarily on Euro III 15 liter ISX/QSX engines. Specifications. Shipment Height. 1 In. Shipment Length. 4 In. Shipment Width. 3.75 In. ... Cummins Pressure Sensor. Part # 4954245. $466.27. Add to cart. Save to My Garage. ... Cummins Oil Gauge Tube. Part # 4948168. $65.66. Add to cart. Save to ..., 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. , If you want to support this channel you can by me a coffe here is the link:https://www.buymeacoffee.com/galaxyseveV pressure dropped to zero on Cummins ISX ...., It may come with 600 HP and 2000 lb-ft of torque but the ISX engine made by Cummins is not the ideal engine. This motor came with a lot of flaws that ruined its reign as a top Cummins engine option. It was a duel fuel engine but that did not improve its chances of being excellent. To learn more about this engine and why the 2004 to 2007 models ..., 46. 13. Jan 27, 2012. Ontario. 0. I have been scratching my head working on an ISX. 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., My truck recently had surging due to varying fuel pressures. Once the fuel control actuator (FCA) was replaced my headaches went away. My fuel pressures were fluctuating from 2,900 psi to 7,000 psi before, now it's steady around 5,800 to 5,900 psi. The part is only $140 and easy to change. Gator1., I am fairly certain I have a 12 valve. Manufacture date on door frame is Dec 97. I am having oil pressure issues on my cummins. When it is cold and at idle it is fine. Once it warms up however if I let my foot off the gas the pressure drops off completely. I checked idle it is around 760 rpms in gear max a/c using obd2 scanner., 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 appreciated, 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., , 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 …, 🚗 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., 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 #, We are looking for the location of the oil pressure sensor on a 2009 ISX Cummins. Answered in 22 minutes by: Technician: Daniel Wilson. Dan : Hi my name is***** will try to help with this. Full Size Image. Full Size Image. #9 is your oil pressure sensor. It is in a tight location near your starter and fuel module., 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 ..., No oil pressure: Ron & Kerrie: Cummins Engines: 10: 05-08-2015 08:56 AM: Low oil pressure | erratic oil pressure | inconsistant oil pressure: GlennLever: Cummins Engines: 45: 08-28-2014 08:24 AM: Oil pressure gauge reading incorrectly? captncrunch: Alpine Coach Owner's Forum: 6: 05-24-2014 04:58 PM: oil pressure sending unit: malk415: Winnebago ..., Oil pressure gauge bouncing cummins ISX Discussion in 'Trucks [ Eighteen Wheelers ]' started by ivo, Jul 5, 2014. Jul 5, 2014 #1. ivo Bobtail Member ... Either you have a bad oil pressure sensor or your filter is plugged and the system is going into bypass mode. ISX 871 is notorious for plugging oil filters with soot., 2. Bad Noises from engine. The other widespread symptoms of low oil pressure are rattling and other strange noises from the engine. The oil pressure prevents engine parts in the engine from rubbing metal against metal, and if the oil pressure is low, they will start rubbing against each other. This can create a horrible sound, and if you …