rattle noise 1200-1400rpm slow acceleration

Status
Not open for further replies.

Ndx

Joined
Apr 4, 2008
Messages
1,924
Location
IL
Hey Guys,

When lightly accelerating I notice what almost seems like what I would consider a noise similar to a cat heat shield rattling, or stones rumbling. This is only at 1200rpm 1500 rpm and only on slow acceleration. (that I can tell). it comes and goes by 1600 but its annoying, and can hear outside of the car as well.

Only in when driving tried to see in idle

Any ideas other than just accelerating harder all the time?

I read that bad gas can cause something like this I actually used a different gas from brand new station, Before Shell V Power

Engine V8 4.8 Porsche.
 
I would get a 1/4 wooden dowel rod and start poking in the engine compartment to see if I could find anything. Then do the same with the vehicle up on a car rack. Good luck. Maybe it is a heat shield. Ed
 
knowing my luck its $$ not simple heat shield lol
 
Originally Posted By: Ndx
knowing my luck its $$ not simple heat shield lol


That is exactly what I was thinking; exhaust heat shield???
 
Injector rattle ? Wouldn't it happen in idle
 
Hi Guys,

Filled up with Vpower ... issue went away ...
Other gas was premium as well ... just different brand maybe bad batch ?
 
Status
Not open for further replies.
Back
Top