Skip the auto shop - Our mechanics make house calls

Q: Possible injector issue?

asked by on

Engine knock at idle not a tick and doesn't sound mechanical. Sounds like air being is restricted. It takes about a minute for it to be noticeable once it's there if you rev to about 2k rpm it goes away

My car has 361258 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. A knock in a die...

Hi, thanks for writing in. A knock in a diesel engine usually indicates an injector issue. Either an injector is not working or the injector pump is not pumping on that cylinder. I recommend having a diesel-savvy technician check each injector nozzle and the pump to find which cylinder is causing the issue. Here at YourMechanic, we can have a technician come to your home or office to inspect and diagnose this issue for you, and make or suggest the necessary repairs.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 2002 blazer 4x4 zr2 abs brake light stays on.

You would need to have the system scanned to see what the feedback the ABS light is giving. From there, you would need to turn off the light after the system is reset to see if it comes back. You...

Q: 6.0 powerstroke blowing white smoke on start up and coolent Reservoir keeps going empty after three weeks

Hi there. What you are describing is an indication of a coolant leak inside the motor. Typically this is a major issue caused by a blown head gasket. When oil and coolant mix together, white smoke is typically expelled out...

Q: Engine knocking constantly.

Hi. From you initial description of the noise and what you found in the oil pan it is safe to say that you have a serious internal engine problem. It sounds like you have a rod or crankshaft bearing that...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...