dch61407

I have a 96 GT, at cruising speeds and normal driving the car is fine, but under hard throttle the valves sound like they are rattling. Can these be ajusted or is this normal? The car has 105k miles on it and I use 87 gas. I didnt notice it until I put the cats back on the car, but it may have just been drowned out by the exhaust before.

96GT226410

It's probably the timing chain tensioners. If you can't deal with the noise, replace them. They're about $45 a piece from Ford, but the labor is high. Of course you can always do it yourself and save $1,000.

Novanutcase

Sure it's not detonating? Timing chain may be throwing your timing off. I'd have it checked out before it ruins your engine.

John

dch61407

I can deal with the noise as long as it wont hurt the engine. I have read post about the timing chain, but I dont think that is the case, because it is not constant, if it were the chain it seems like it would be constant because the chain is always moving consistant with no break. I could be wrong, I was hoping somebody had the same thing happen and had an easy solution to fix it lol. If it was the chain would that eventually cause a problem?

96GT226410

My car was doing the same exact thing. No noise unless at full throttle.

dch61407

Hey, you said your car WAS doing it, does it still do it or how did you fix it?

lizzyfan

It sounds like detonation to me. Throw in some 93 octane and see what happens

sstang

+1 for detonation. Either try some 91/93 octane, or retard your timing and see what happens.

I G Joe

that or an exhaust leak, thought id just put it out there.

99BlackPonyGT

yea, my truck has an exhaust leak and at WOT it is the most annoying clicking sound ever...pisses me off, just dont care enough to fix it....