Rattling Noise Under Acceleration

cdurbin

5 Year Member
Jul 27, 2012
563
108
64
North Charleston, SC
I've noticed a "rattling" type noise during acceleration. I can hear it really well in a parking lot or area where there are objects that cause an echo. I don't hear it when idling. Any thoughts on what the heck it is? It's freakin' driving me nuts.
Thanks
 
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It sounds like it's coming from the front, lower part of the car. Like an exhaust rattle. I don't have cats so it's not that.
I've got Hedman headers straight to an H-pipe and some Flowmasters.
It's only when I am acelerating though. I can't hear it at an idle.
 
Can you hear it if you just rev the engine up in neutral? If so, get someone to rev it up while you listen while lying underneath it. At a minimum you might be able to pinpoint the area the rattle is coming from.
 
Put your hand on the shifter and hold it down in whatever gear its in to see if its the shifter. My hurst rattles against the stop adjustments on it .
 
All excellent suggestions.
Just to clarify, it only makes the noise while under a load. Sitting in neutral reving the engine, I don't hear it.
I've been using 91 octane fuel and I've ran Lucas gas treatment the last 3 fillups.
I also tried holding the shifter, no dice there.
I'm going to go ahead and buy one of these tune up kits and see if it helps.

http://www.mustangmagicparts.com/mtuk8695-tune-up8695.html

Certainly couldn't hurt.
Thanks guys