Jump to content
CaddyInfo Cadillac Forum

whine sound at start


99 STS MAN

Recommended Posts


Put a 1/2" breaker bar on the tensioner lug and release the tension just enough to let the belt slip a little. If the whine goes away it one of the front pullies. Use a piece of rubber hose as a stethescope and listen to the pully bearings (alternator, idler, tensioner and A/C compressor).

Link to comment
Share on other sites

99 sts  When car is cold it has a whine sound when reved it whines louder and after it warms up some it stops  Is it the timing chain, transmission ,I dont know I just dont want to hurt any thing!!  tHANKS GUYS! :blink:

Eliminate the accessories by removing the serpentine belt and starting the car briefly and turn it off. If the noise is gone, you know its an accessory. It could be the alternator, tensioner wheel, idler wheel, AC hub, its unlikely that the steering pump would do this... Rotate each accessory and see if your feel roughness in the bearings.

It could also be that your serp belt is shredded, dried out or damaged, OR your tensioner could be weak..

If the noise is still there at least you eliminated the accessories and we can go further..

Early on sailors navigated by the stars at night and the North star became the symbol for finding ones way home. Once you know where the Northstar is you can point your ship in the right direction to get home. So the star became a symbol for finding ones way home or more symbolically even finding ones path in life.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...