squealing noise from intake
#1
squealing noise from intake
On my 08 5.4 today there was a squealing noise coming from the drivers side injector, upper intake area. It didn't sound like it was under the valve cover. It was cold, 20° and I started it and drove it across the parking lot and it did it while idling. I gave it a little throttle and it went away but started again when it settled back to idle then stopped after a couple minutes.
Thoughts
Thoughts
Last edited by worm5932; 11-27-2013 at 11:14 PM.
#2
On my 08 5.4 today there was a squealing noise coming from the drivers side injector, upper intake area. It didn't sound like it was under the valve cover. It was cold, 20° and I started it and drove it across the parking lot and it did it while idling. I gave it a little throttle and it went away but started again when it settled back to idle then stopped after a couple minutes.
Thoughts & Thanks!
Thoughts & Thanks!
Nothing in the intake will 'squeal'.
Possible culprits = idlers, tensioner, alt / PS bearings, etc.
Also - belt itself, spooge on the pulley surfaces ...
Remove serpentine belt temporarily - does squeal disappear?
If replacing belt use a Gatorback.
Last edited by MGDfan; 11-28-2013 at 08:34 AM. Reason: cain't spell snake, lol
#3
#4
Sound is a funny thing - so much ambient cacophony under there. I can honestly say I've never heard fuel flowing through the injector rails.
You can, and should, rule out rotating components by yanking the belt - only takes a couple minutes.
If it still makes the noise, we can try to proceed from there. (vac hose collapse / connection / leak, PS fluid gurgle, etc).
Good luck! And yer welcome, lol!
MGD
#7
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