Car ForumCar Diagnosis Help - Strange Squeak
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Car ForumCar Diagnosis Help - Strange SqueakPosted:

Skittullz
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Hi Guys,
Recently changed my spark plugs and ignition coil pack as I was getting a cylinder 4 missfire.
Ever since changing this, there is a squeak when I turn the engine off, any ideas?

Here is a video: youtu.be/6BsrEttI064
#2. Posted:
JZX
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Is it one of the belt pulleys maybe? It's something that rotates during engine running that's for sure.
#3. Posted:
JDM
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JZX wrote Is it one of the belt pulleys maybe? It's something that rotates during engine running that's for sure.

this
#4. Posted:
JZX
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The engine internals can probably be ruled out of this as they wouldn't squeak. My best guess it's a belt or a pulley that's worn causing a squeak.
#5. Posted:
Zydrin
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It does sound like a worn down pulley coming to a stop when the engine is off. Check your crank pulley, any tensioners you have, and also your AC compressor pulley and alternator pulley. That would be my first suggestion to look.
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