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engine noise?

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Michele
9/14/2005 4:20:42 PM
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?
techmanbd
9/14/2005 4:52:15 PM
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.
Michele
9/14/2005 4:59:43 PM
No, the car is stock, but I will check the hoses to the throttle body. Thanks!
cctxfish
9/15/2005 4:56:55 PM
heard of 2 things;
1. IAC valve making noise. &
2. MAF sensor making noise. good luck
stang99x
9/15/2005 11:34:10 PM
I'd put my money on the IAC valve
pakus
9/16/2005 5:41:47 PM
MAF has no moving parts and can not make noise unless something has passed the filter and entered the sensor
hockeyhitman69
9/17/2005 11:32:14 AM
tap on the iac is probably sticking,common problem
cleaning mis only a temp fix
stang99x
9/18/2005 10:30:43 PM
CHange the IAC valve and you'll be on your way
cctxfish
9/19/2005 3:26:48 PM
Pacus I agree, but some say it make noise. My money would be on IAC
Michele
10/3/2005 2:51:06 PM
Uh, IAC is short for...?
rusty ol ranger
10/3/2005 4:28:04 PM
IAC- Idle air control.

Controls airflow into the engine at idle. Kind of what mixture screws used to do on a carburator.

later,
Dustin
Michele
10/3/2005 4:32:59 PM
Ah, Thanks!
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