Rattling/Pinging sound at idle and low RPM
#1
TECH Resident
Thread Starter
iTrader: (4)
Join Date: May 2003
Location: Diamond Bar, CA
Posts: 859
Likes: 0
Received 0 Likes
on
0 Posts
Rattling/Pinging sound at idle and low RPM
Last night after driving home from work, I noticed a rattling noise coming from the engine bay that immediately made me think my engine was pinging. No SES light, car drives fine, etc. Scanned the car on the way to work this morning and no KR and the LTFTs were just a touch negative like they should be.
When I get home tonight from work, I hear the same noises again. This is after a fresh tank of gas and 100 miles driven on that tank. The tank before this I used some fuel injector cleaner (FP60 from Lube Control). This new tank of gas I did not use the cleaner.
Any thoughts on this? What should my next step be if after running through this tank of gas doesn't help anything? If the engine is pinging, shouldn't I be seeing some KR?
Thanks all...
When I get home tonight from work, I hear the same noises again. This is after a fresh tank of gas and 100 miles driven on that tank. The tank before this I used some fuel injector cleaner (FP60 from Lube Control). This new tank of gas I did not use the cleaner.
Any thoughts on this? What should my next step be if after running through this tank of gas doesn't help anything? If the engine is pinging, shouldn't I be seeing some KR?
Thanks all...
#4
TECH Resident
Thread Starter
iTrader: (4)
Join Date: May 2003
Location: Diamond Bar, CA
Posts: 859
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by blacktransam
rattling?? could it by chance be a valve train noise?? Rocker bolt backing out?? or a bent bush rod??