well i just got done replacing my headgasket. Then when i start it up it make this high pitch sound anybody know where its come from??

http://s361.photobucket.com/albums/o...t=IMG_3430.mp4

 

over tighten the timming belt?

 

i dont think so because my friend tighten it and he is a mechanic.

 

replace tension pulley? replace water pump?

 

well didnt replace those. but it was working before i replace the hg though.

 

that doesn't sound good at all lol, so all you replaced is the headgasket? i would double check the timing belt just in case

 

yeah hah i thought its going to explode.

 

just cause hes "a mechanic" dont mean he didnt over tighten the timing belt. Its eaither the timing belt to tight or the tentioner for some reason, or one of the belts like the ps or ac or alt.

 

none of the belts were on except timing belt.

 

could it be a vac leak

 

That is a very odd noise it's making. Is the timing belt rubbing on something maybe?

 

On mine, the aftermarket cam gears had bolts sticking through far enough that - as they stuck through the gear and towards the engine/cams, would touch the rear plastic timing belt covers.

Could be something like that rubbing... ?

Though, I agree that whistles are often air leaks.

Mark

 

I listen to the video and it sounds like the engine RPM is dropping (as it is shut off) but the whistle continues at the same pitch for a short bit longer - sort of reinforcing the idea that it's a vacuum related thing...

 

okay ill double check if theres a leak tomorrow.