Cummins isx air compressor oil leak. Premium quality, fast shipping, and in stock.

Cummins isx air compressor oil leak. I crawled under it while it was running and oil was coming out of the crankcase breather and smoke. 3 days ago · Rawze. com: Rawze's ISX Technical Discussion and more / Big Truck Technical Discussion / ISX Related Help / ISX-15 pushing coolant out of reservoir tank -help- Sep 21, 2023 · Reduced air pressure, unusual noises, frequent oil leaks are some of the signs indicating the need for an air compressor change on Cummins ISX. com: Rawze's ISX Technical Discussion and more / Big Truck Technical Discussion / ISX Related Help / Air Compressor air in coolant. Look for oil in coolant and vise-versa. 00 Mar 9, 2012 · Search this forum Printer friendly version E-mail a link to this thread Jun 29, 2017 · 07 isx leaking oil from rear Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by Garybilling, Jun 29, 2017. Regularly inspect the Dec 15, 2014 · I am working on a 2010 isx that's getting coolant in the oil, bout a gallon every 8k miles. Best case, this happens at idle, the engine is destroyed and nobody gets hurt. Jan 3, 2019 · What does it mean when there is air blowing out of intake on an air compressor, and how do you fix this? This article will provide you with all the relevant information on why air is blowing out of your air compressor intake valve, and a solution to fix it! Mar 4, 2013 · Air compressors will pass oil if their air intakes are restricted, or if the oil drain for it's crankcase is restricted, so make sure they are good too. I'd recommend frequent inspections (there was some evidence of a leak before things got bad) if your rig is more than about The specifications and rebuild information in this manual is based on the information in effect at the time of printing. There are always exceptions and rare occurrences, but these should be able to diagnose most leaking oil/coolant issues. Easy it can leak and cause over pressuring of the coolant. Excess air blowby in an ISX Cummins 475 HP typically indicates worn piston rings or damaged valve seals, allowing combustion gases to enter the crankcase. Run the engine for just a few moments to check if the turbocharger is pushing air through the drain. Sep 2, 2020 · The last couple of times that I have serviced my air dryer there has been quite a bit of oil in the dryer. If the dryer is expelling a lot of oil your compressor needs to be rebuilt or replaced. This was a brand new holset turbo less than 10k miles ago. I had my mechanic look at it and he was saying that it is either my front cover gasket or a oil leak coming from the air compressor. Cummins ISX engines are powerful but may face issues like EGR valve failure, turbocharger problems, fuel injector malfunctions, DPF clogging, camshaft wear, and excessive oil consumption. Turbine end heat soak into the bearing housing results in oil carbonisation and corrosion of the bearing system. com: Rawze's ISX Technical Discussion and more / Big Truck Technical Discussion / ISX Related Help / Isx15 oil in coolant Tamerx Air Compressor 3689649RX for Cummins X15 is built for 2017-2022 models. Dec 2, 2022 · Recently my ISC/ISL engine's air compressor cooling line sprung a leak. reserves the right to make any changes at any time without obligation. Jan 21, 2012 · Engine oil cannot come out of power steering!! the vacuum pump in front of PS pump could leak at a seal between and put oil over ps. Additionally, listen for any unusual noises coming from the compressor during operation. 5K subscribers Subscribed Apr 6, 2017 · I was thinking of removing oil filter, then pressurizing the coolant system with air at the surge tank, looking for coolant loss from the oil filter head. Oct 1, 2016 · I have this same problem with mine and my air compressor secondary air drops while I'm driving. Inspect the compressor’s drive belt for wear or looseness, as this affects performance. S. Jul 15, 2021 · 6. Jan 27, 2025 · The Cummins ISX15 is a legend in heavy-duty engines, but even legends have flaws. Be alert for possible pressure when disconnecting any device from a system that utilizes pressure. I've put on another new compressor thinking that the old new one was defective. EGR coolers and Cummins ISX rebuild repairs have been done to correct these issues but it is very important to Oct 27, 2025 · I want to personally thank everyone who has donated to the forum recently. Whether you’re hauling cross-country or running local routes, here’s how to spot the signs of a leak and tackle repairs before it’s too late. I'm ready to answer your questions about this engine's maintenance and repair. This is real life truckin Jan 22, 2021 · Has anyone else had a seal failure in their power steering pump that allowed engine oil to get into the power steering system and over fill the power steering reservoir? Sep 24, 2012 · My air dryer started spitting oil a while back so I replaced my air compressor. So what does the air compressor have to do with The cooling system. I noticed some oil leaking and friend of mine suggested the compressor gasket, after changing that, it Cummins ISX coolant overflow, coolant loss excessive pressure ion coolant system. Its normal for an air compressor to pass a small amount of oil. ontop of that you might just have a small headgasket leak. lucky guy! more ISX Cummins 475 HP Excess Air Blowby Causing Oil Leaks ISX Cummins engines often face excessive blowby and oil leaks due to worn piston rings or valve seals. I just put one on my truck, sounds about what mine was doing. What tools are required for replacing the air compressor on Cummins ISX? Nov 21, 2023 · Download the Cummins ISX QSX15 repair manual PDF with service, troubleshooting, and workshop guides for complete engine maintenance. Regular maintenance and timely fixes can prevent costly repairs and extend engine life. Check the suction port for air leaks (any bubble formation, leakage indicating spray). Engine running . Keep your heavy-duty truck’s air brakes and suspension running smoothly with Volgen Power’s quality parts. Run the engine with the discharge line off and the compressor buildinghold a piece of cardboard or sheet of paper to the discarge port at the compressor. You should check the air tanks, drain them, and look for any signs of oil. - measured 5 days ago · Rawze. This service manual is an assistant for motorists to provide effective following the operating engines Cummins series ISX and QSX15. Detailed diagram of Cummins ISX engine parts, including components and their layout for easy identification and maintenance. com: Rawze's ISX Technical Discussion and more / Big Truck Technical Discussion / ISX Related Help / ISX-15 pushing coolant from pressure cap on reservoir tank May 1, 2010 · I hope it is just your air compressor, but I've never seen one push that much oil, the single lungers don't even puch that much air out of the discharge line, let alone just have that much leak by. Cummins ISX CM871 Oil in Coolant and Exhaust Manifold Oil Issue ISX CM871 engines may face coolant contamination and exhaust manifold oil leaks due to gasket failures or turbo issues. com: Rawze's ISX Technical Discussion and more / Big Truck Technical Discussion / ISX Related Help / Cm2250 Air compressor or head gasket ? Jun 4, 2011 · i recently had my ac compressor replaced about two weeks ago. Typically, if the air compressor is leaking oil, it will introduce it into the air system. High pressure oil or fuel can cause personal injury. Premium quality, fast shipping, and in stock. I took to mechanic and had replaced air compressor ( there was a leak), intercooler ( I thought it’s caused a problem) but knocking sound still there. Jun 8, 2012 · An alternative issue I have seen with excessive oil in the air brake system has to do with where your air compressor is sucking its intake air from. The expansion tank cap was broken (almost didn't hold any pressure). Air Compressor Gasket Kit Fits Various Cummins ISX and ISX Engines (2011-2017) Direct Aftermarket Replacement for OEM #s: 3685614, 5440813, 5440813CUM, 154916, 163027, 3004242 3166307, 3558515, 4988280, 23516100, 20706231, 11842 Cummins ISX front cover oil leak repair Life With Chase 17. Just yesterday i noticed a coolant leak from my truck. BEFORE replacing a turbocharger, verify the problem by consulting the chart below. Next, use a pressure gauge to check the pressure levels at various points in the system, such as the inlet and outlet ports. One of the most notorious issues? Oil cooler leaks. Yesterday evening I noticed oil everywhere under the truck, even on the bumper and tailgate. Jun 27, 2019 · also you may have had a bad head on your compressor dumping a bunch of air into the coolant system. It seems like it started after I installed a pacbrake prxb. Was When replacing the ISX Cummins air compressor, first relieve system air pressure and disconnect the battery. I had to add 2 gallons yesterday the oil level was barely on the dipstick. Apply max. We replaced: - the expansion tank cap - the water filter We conducted the following tests: - combustion leak test (twice with two different fluids). What should be checked if the Cummins ISX15 Air Compressor 2011-2017: OEM 3690864RX has an oil leak? + What are the risks of ignoring early signs of failure in the Cummins ISX15 Air Compressor 2011-2017: OEM 3690864RX? + Cummins X15 EGR Cooler 2017-2020: OEM 5405814RX $2,370. There is a separate cast housing about 2 inches Oct 30, 2012 · If you have an EGR Cummins you could have a massive air leak from the turbo actuator solenoid or the air piping to the turbo, or the turbo actuator itself. Mar 14, 2021 · Hi Truckers Report! I have 2020 Peterbilt 567 with x15 and 18sp eaton automatic transmission. Apr 6, 2017 · New air compressor (timed properly) with ISX CM871 engine, new air lines and air dryer and still losing oil out purge valve on dryer. All cylinders appear to be working. This is 2nd compressor in less than 1 year and 1st one contaminated dryer with oil. Is this the front main seal? Mar 17, 2024 · Kenworth with a Cummins ISX15 arrived with a problem of coolant overflow. I picked up a reman Cummins compressor from Haldex. I quess Apr 13, 2014 · Hey all, I got a ftl cascadia with cummins isx. Well that didn't fix it. The oil gets old and dead. Video Transcript Ah, there was a leak, ah from the gasket, due to the air compressor, it was removed, now everything cleans, Oct 5, 2009 · I had that leak for a while. Between front cover and engine block behind air compresor. The compressor says reman'd in the USA on the box. The Lube Oil part number 3377363 is for Cummins Premium Blue 15W40 oil supplied in one gallon plastic jugs. Need to replace with a complete flush. Dec 1, 2011 · Truck Maintenance - Air Compressor Air Leak, Replace or Rebuild, Cummins ISX - A couple days ago I noticed and audible air leak coming from my air compressor. port 9. Good for a day or two and than back, coolant fluctuated up and down in the clear jug on my ProStar. May 26, 2016 · 2007 Cummins Isx oil leak need hep Discussion in ' Trucks [ Eighteen Wheelers ] ' started by united972, May 26, 2016. 😱 Restricted Oil Drain: If the oil can’t drain back out properly, it will pool up and eventually leak. com: Rawze's ISX Technical Discussion and more / Big Truck Technical Discussion / ISX Related Help / Coolant Leak around Compressor Here we have a air compressor discharge line that bursted with a hole which causes the tanks to not build up past 100psi. This air compressor gasket kit is the perfect choice to prevent air from leaking from your compressor. Oct 19, 2013 · I have an oil leak coming from my front portion of my engine. ,I had it happen. Oct 30, 2012 · If you have an EGR Cummins you could have a massive air leak from the turbo actuator solenoid or the air piping to the turbo, or the turbo actuator itself. Check for oil leaks around the compressor shaft seal, which can indicate failure. This solenoid is only energized when the engine is actually running, so leaks can be hard to find. Dec 1, 2011 · After starting and idling the truck for just a few minutes, I noticed the fairly loud leak and upon further inspection, I found where oil had apparently been blown through the side of the compressor head and onto the engine. After starting and idling Oct 31, 2024 · Air Leaks: If there’s a leak on the air intake side, like a clogged air filter or a loose coupler, it can create a vacuum and start sucking oil out of the turbo. The problem is the truck will not build air after sitting for a weekend or however long it takes until tanks are near empty. Apr 7, 2016 · The desiccant will absorb oil as well and once its fully contaminated with oil it can no longer absorb water so the dryer is no longer able to do its job. Cross contamination could be coming from any number of areas: air compressor, turbo, water pump, head gasket etc. Get it tomorrow with UPS next day air delivery! Easy returns and warranty. If your air compressor is taking its intake air between your air filter and the turbo intake ( not turbo charged but under vacum when engine loaded), under a hard pull it can pull oil past the compressor piston rings. Sooner or later, some condition will develop that will cause the incoming airflow to carry this oil into the engine. Initially, the area around the leak should be thoroughly cleaned. I will say that most of the leaking is mainly on the driver's side I hardly see much on the passenger side of the motor. Oct 16, 2025 · Rawze. I suspect the problem has to do with bad PS fluid. So i got under there and i could see its leaking from where the compressor connects to the block. New engine oil leak between air compressor and the hydraulic pump. "HEAD SCRATCHER" Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by Dexx69, Apr 25, 2018. 4 days ago · Rawze. Thoughts please. If differences are found between your engine and the information in this manual, contact a Cummins Authorized Repair Location or call 1-800-DIESELS (1-800-343-7357) toll free in the U. Seal a coolant port (e. Oct 2, 2009 · It has 162,000 miles. I’ve been noticing over the last few months that at times I seemed to be losing air, but could never pinpoint the problem component. Tamerx Cummins ISX15 Air Compressor 2011-2017: OEM 3690864RX is built for 2011-2017 models. Ensure proper torque when installing the new compressor and verify air lines are securely connected to prevent leaks. On my 1998 Alpine the air compressor mounts onto the front face of the timing case. ISX Engine Oil Leak Between Block and Bell Housing Explained ISX engines may experience oil seepage at the bell housing seal and crankshaft rear main seal leaks. It helps pay for the $790/month internet bill that the forum consumes. Cummins Inc. A failing oil cooler can lead to catastrophic engine damage if ignored, mixing coolant and oil or causing overheating. Mar 17, 2024 · Kenworth with a Cummins ISX15 arrived with a problem of coolant overflow. Dec 21, 2023 · To test a Cummins air compressor, start by visually inspecting for any signs of wear or damage. Generally drivers also complain of noise and jerking in power steering and brakes ineffective. If you have the original EGR cooler (usually still painted red) and no external signs of leaks, look at your exhaust. This will cause the engine will run away. Should I be worried about oil in the intake? Or just keep running it. Inspect the intake for wetness or oil coming from the engine. Connect a compressed air adapter to the second coolant port. I have never encountered a turbo or air compressor that permits oil to enter the coolant, and the manufacturer does not even include either component in their troubleshooting guide for oil in the coolant. (kinda impossible) everything above it is dry? So my question is, when replacing Oct 1, 2016 · Cummins isx air pressure in cooling system Discussion in ' Trucks [ Eighteen Wheelers ] ' started by kabusheke2004, Oct 1, 2016. No combustion gases detected. Sep 21, 2024 · The ISX Cummins engine, while powerful and reliable, commonly faces issues like EGR valve failure, turbocharger problems, fuel injector issues, and excessive oil consumption. I would recommend disconnecting the turbo oil drain and directing the drain oil into a bucket. I have an ISX15 450hp with excessive blowby and oil every where Driver smell burning and low oil pressure, he stoped How To Tell If Your Air Compressor Is Bad And Pushing Oil On Your Semi Truck Eddie V 28. No lack of power or derate. - cylinder cut-off test. You will also have signs of oil/coolant cross-contamination. No Failure from excessive exhaust temperatures or hot shutdown of engine results in carbon build-up. It is recommended that you idle the engine for two to three minutes to cool the bearing system before shutting down. - Thank you again. Shortly after the coolant mixed with the oil and inframe was here Tamerx Air Compressor 3689649RX for Cummins X15 is built for 2017-2022 models. After removing the output line from the compressor, we found air leaking from the compressor. Jul 8, 2018 · In case of a emergency or low money to tow the truck to the nearest repair shop, you can block the oil flow from the oil pressure line that goes to the turbo to prevent oil flow to the engine. Is there anywhere the coolant can get into the oil other than a liner or head gasket? I am not all that familiar with these newer dpf and egr motors. Relieve all pressure in the air, oil, fuel, and cooling systems before any lines, fittings, or related items are removed or disconnected. Check the discharge air port for air leaks (any bubble formation, leakage indicating spray). This channel has been created to share the how to's, successes and yes, failures of owning and operating your own trucking company. Regular maintenance, such as cleaning the EGR valve, changing the oil, and maintaining the Diesel Particulate Filter (DPF), is crucial to prevent these problems. Sep 10, 2019 · Easy oil leak repair on a Cummins isx air compressor Tim Smith 894 subscribers Subscribed Aug 8, 2025 · Discover common causes of oil leaks in Cummins ISX engines, proven troubleshooting steps, and maintenance tips to keep your engine running efficiently and prevent costly repairs. This TRP is being issued to address oil leaks at the air compressor/gear housing interface on certain X15 CM2350 X114B/X116B, and ISX CM871 E engines, due to excess material on the engine block. So long story short my air dryer is still spitting oil and is only getting worse. Then would blow through the cap, remove the cap coolant would drop. Factory Cummins ISX/Signature/QSX15 repair & troubleshooting service manual. Check for oil contamination in the air system, which can indicate internal seal failure. I just bought this truck to add to my fleet and found out when accelerating truck makes knocking noise. Finally, perform a thorough leak test to ensure there are no air leaks in the system Jan 4, 2017 · I got a cm2250 that's leaking oil on driver side of the block right behind the air compressor and runs down to the front of oil pan and the side below air compressor and fuel pump. Do not check for pressure leaks with your hand. 7L Cummins Air Intake System – Air Leaks, Air Intake and Exhaust Systems – Initial Check Leaks in the intake air system are most commonly identified by: • Inspection of piping for cracked or loose clamps • Applying a solution of soapy water in the suspected area and inspecting for bubbles Aug 7, 2025 · Cummins ISX X15 oil leak troubleshooting involves a detailed process, focusing on the timing gear cover removal and repair. Cummins air compressors are used in a variety of projects, from pumping up the vehicle tires to powering hand pneumatic tools for engraving, drilling and other operations. Air tanks are all clean no Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Let’s see the tough process to replace it. 1). We replaced: the expansion tank cap the water filter We conducted the following tests: combustion leak test (twice with two different fluids). That is where I would start. Oct 21, 2015 · Remove the intake or charge air from the air compressor to isolate the engine from the compressor. If your air compressor is bad, and you change it, you must also replace/rebuild your air dryer because the oil destroys it. Tonight entire left side of the engine is oil covered. Moved PermanentlyThe document has been permanently moved. "not sure on the comman rails if the injector bores can leak or not into cooling systems like an 870-871 injector cup can" I am thinking air compressor. 9K subscribers Subscribed Sep 26, 2018 · In rare cases, the fault is in the turbo or the air compressor (but very rare). Some external Dec 4, 2018 · Subscribed 967 141K views 6 years ago no rebuild needed, just an air compressor. If, after taking the appropriate action problems still persist, please contact your nearest authorised Holset distributor for advice. Sep 10, 2021 · Hey I'm wondering if anyone else has had issues with there turbo seals seeping. Find VIN Vehicle serial number (VIN) can be found on the dashboard on the driver’s side, or under the hood of the car near the engine, or under the front grille of the car, or on the driver’s side door or rear wheel. This service guide provides detailed service and troubleshoot information, operation and maintenance manual, special instructions for repair and maintenance, diagrams and charts for engines Cummins. Part number: 3689649, Brand: CUMMINS Price: $1,599. I don't think the egr cooler would let coolant into Is your Cummins ISX15 experiencing coolant pressurization/overflow problems? In this video, we use show you how to use combustion leak test fluid to check for combustion gases in the cooling Mar 18, 2022 · Also should I replace the outlet hose as well? There is oil leaking at the compressor connection Just an FYI: If oil is getting into your air system then it will eventually cause all of the plastic air lines, plastic connectors, plastic valves and relays, and o-rings to harden and become brittle / get leaky. The manual details procedures for troubleshooting and repairing the turbocharger, including leak testing and component replacement. and Mar 31, 2021 · Home » Blog – All HHP Blog Articles » Why Is My Diesel Engine Air Brake Compressor Leaking? These checks and tests are meant to be a quick and simple way to test a diesel brake air compressor and determine its functionality. Talking to the local Cummins shop they say that in order to replace the compressor they have to remove the ECM and another part (forgot which one) and that the compressor has to be timed to engine. . Consists of multiple volumes & includes CD-ROM. Most engine air compressors Apr 27, 2012 · Cummins Air Compressor oil question Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by wr2001, May 15, 2017. Oct 28, 2025 · Rawze. Inspect mounting bolts and drive belt condition before removal. The main damage occurs to the shaft seal ring and grooves, turbine Mar 14, 2012 · '13 ISX15 oil in coolant. Note any leaks towards the Optimized SEO Meta Description: 优化的 SEO 元描述： Is your Cummins X15 air compressor not building pressure? Discover the top 5 reasons for failure and step-by-step repair solutions for truck drivers and fleet managers in Toronto, Vancouver, and across Canada. My options seem to be spend $$$$ or to just replace the dryer on a more frequent Dec 1, 2011 · Truck Maintenance - Air Compressor Air Leak, Replace or Rebuild, Cummins ISX - A couple days ago I noticed and audible air leak coming from my air compressor. 00 Free same-business day shipping. 12 bar to the coolant area. Oct 1, 2012 · The Cummins ISX engine has a blow-by filter on the top left side of the engine and there is a one-way valve in the canister filter that could malfunction, creating excess crankcase pressure in the engine, enabling the filter to clog again, creating the excess blow-by pressure in the crankcase, and causing the turbo to throw oil into the exhaust May 4, 2020 · The oil that's leaking out of the turbo is collecting in the charge air cooler. g. This checklist provides a comprehensive list of the most common symptoms related to turbocharger failure. Jun 29, 2015 · Hello all, I am having a problem with one of trucks air compressor and one of my mechanics found a quick remedy to get us by until we get it in the shop this week. Oct 27, 2022 · The following illustrations show the location of the major external engine components, filters, and other service and maintenance points. Jan 16, 2022 · After putting shop air to the truck today, we could hear air leaking internally by the compressor. I've noticed its been using oil the past 3-4000 miles. Make sure your drain line is clear and properly positioned! 🔧 Feb 2, 2021 · Hello! I've reviewed the Cummins Signature ISX Service Manual (document ID 66307938). tke mv4zwzwz aad1 ifn 2whw hgcfm9a0 1csq5 cyqr vbi gdhyptd