Skip the auto shop - Our mechanics make house calls

Q: I have a bad oil cooler, however I also am getting almost no boost at all.

asked by on

When I push my pedal to the floor my rpms just shoot up like normal however my truck practically goes no where. The acceleration is very slow and I can't hear my turbo spool at all. I'm trying to find the cause of this however the turbo has been replaced and it's not the problem. The turbo started not really boosting about the same time my oil cooler went kapoot. Can these two parts be directly affecting each other? Thanks -Donny
My car has an automatic transmission.

A: Hello, thanks for writing in. This can be c...

Hello, thanks for writing in. This can be caused by a few different issues. If you had an oil pressure issue from a bad cooler then that could starve the turbo causing it to fail. If the turbo is not creating any boost then you may have a defective turbo, a bad actuator for the turbo or a restriction in the exhaust. No boost will definitely keep the engine from creating power. Also, it is possible that the turbo is not creating boost because the engine is not under load. This can occur if the transmission is failing. This is not as common as a turbo issue though. I usually check the computer for any codes first prior to testing the turbo control circuit and the exhaust. If you are planning on having this low power concern checked out, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Locks and windows not always working

If the issues stem from using the controls on the drivers door to control door locks and windows on the other doors, then the problem is likely in the drivers door harness. If the problem stems at one of the...

Q: Transmission issues and difficulty going to reverse

When you say difficult do you mean shifting the gears? Check the shift column for worn out bushings. On the bottom of the shift tube under the dash, it would come loose and shifting gears may not put the gear...

Q: The Check Engine Light came on, I hooked it up to my scanner and got the code P0308 (cylinder #8 misfire).

An easy way to isolate if the ignition coil is the problem is to swap the #8 coil with another cylinder. Swap the #8 coil with the coil from the adjacent cylinder, then clear the codes. If the code remains...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...