- Nov 27, 2012
- 53
- 4
- 18
Ok guys. Once again I am back with another problem. My car is making a sound that I can only describe as "a non-rhythmic rattling" under acceleration. The sound is a bunch of sharp pops almost like there are marbles in the engine or something is hitting something else. The harder I push it, the worse it gets.
It is only doing this under acceleration and not sitting still. It does it worse in high gear at low speed and I go anywhere past 1/2 throttle. It is also worse when I run low octane fuel. Running 93 octane helps tremendously but does not alleviate the problem. It only does it when the engine is under load. I can slowly run all the way to redline without this noise occuring, and I cant reproduce the sound sitting still.
I was told by a member here that my car should run fine on 87 octane and I agree. Its a 95 GT 5.0 with stock internals. BBK intake and magnaflow catback. Nearly stock.
Any ideas?
It is only doing this under acceleration and not sitting still. It does it worse in high gear at low speed and I go anywhere past 1/2 throttle. It is also worse when I run low octane fuel. Running 93 octane helps tremendously but does not alleviate the problem. It only does it when the engine is under load. I can slowly run all the way to redline without this noise occuring, and I cant reproduce the sound sitting still.
I was told by a member here that my car should run fine on 87 octane and I agree. Its a 95 GT 5.0 with stock internals. BBK intake and magnaflow catback. Nearly stock.
Any ideas?