So... my Jeep starting making a knocking noise. It’s only on cold start ups it last for a minute or two then everything seems fine afterwards. What could it be ?
Help !! Engine knock
- Thread starter Ol Blue
- Start date
Can you take a video during the day. It’s hard to tell what area it’s coming from because of the darkness. What year is your Jeep? That’s not what an engine knock sounds like, but something is going on. Post a better video.
Its hard to tell from the video. The fact that it is not a steady rhythmic sounds and that it goes away after warm up makes me think of an exhaust leak.
OP
Are you by any chance running a heavier than recommended viscosity engine oil like 15W-30 or 20W-40?
Doesn't sound like the engine to me either... Almost like a piece of plastic is vibrating and hitting something spinning.
OP
Well I hope everyone is right about it not being a engine issue. Jeep is running great after those few minutes of cold start up! Just worried I had an engine issue. I just spend all my money on a regear and Sl for the rear Dana 44. I’m running 10w-30 valvovine yellow bottle with mopar oil filter. Just changed the oil and put a quart of mmo cause I’m in panic mode.
Thanks for the help
Thanks for the help
OP
View attachment 59425 View attachment 59424 View attachment 59423 So.... I know I’m late to the game but have been super busy lately. I ended up changing my oil a few times...seems to be ok I drove it all the way to the rubicon trail early August and back. Unfortunately we only made it to the 1.5 marker. We lost one rig at the gatekeeper (overheated ) and the second short of the 1.5 marker ( power steering) ol blue did great though!