engine noise?
 

Guys - I have this bizzare noise coming from my driver's front right. I have a 5.4L 2001 and it sounds exactly like a JetLiner landing! It is constant except for the pitch. The pitch changes as the accelerator is depressed?

Any ideas?

RE: engine noise?
 

Did you put any mods on it for intake? Sounds like the throttle body area. Check around to make sure all the hosing for the intake are on properly.

If you happen to put a throttle body spacer then you will get that noise.

RE: engine noise?
 

No, the car is stock, but I will check the hoses to the throttle body. Thanks!

RE: engine noise?
 

heard of 2 things;
1. IAC valve making noise. &
2. MAF sensor making noise. good luck

RE: engine noise?
 

I'd put my money on the IAC valve

RE: engine noise?
 

MAF has no moving parts and can not make noise unless something has passed the filter and entered the sensor

RE: engine noise?
 

tap on the iac is probably sticking,common problem
cleaning mis only a temp fix

RE: engine noise?
 

CHange the IAC valve and you'll be on your way

RE: engine noise?
 

Pacus I agree, but some say it make noise. My money would be on IAC[sm=lockeddance.gif]

RE: engine noise?
 

Uh, IAC is short for...?