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.
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.
Have a car question? Get free advice from our top-rated mechanics.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing