loud squealing noise

[JL]

1994 sl2
it started last winter on cold mornings
and now it does almost every startup especially if it sits for a
while.
its a very loud squeling noise for several seconds and then it
abruptly stops, the duration varies.
Turning off/on the AC and heater does not affect it either.
turning the wheel does not affect the sound but reving the motor does.

thanks

 

[Ritz]

1994 sl2
it started last winter on cold mornings
and now it does almost every startup especially if it sits for a
while.
its a very loud squeling noise for several seconds and then it
abruptly stops, the duration varies.
Turning off/on the AC and heater does not affect it either.
turning the wheel does not affect the sound but reving the motor does.

Have you tried a mink coat? That stopped all the spurious loud
squealing in my Saturn...

 

[SnoMan]

1994 sl2
it started last winter on cold mornings
and now it does almost every startup especially if it sits for a
while.
its a very loud squeling noise for several seconds and then it
abruptly stops, the duration varies.
Turning off/on the AC and heater does not affect it either.
turning the wheel does not affect the sound but reving the motor does.

thanks

It could be a belt, or wate rpump or a altenator bearing. Use a 3 or 4
foot piece of heater hose with one end to ear and other in engine
compartment when it is cold started to locate source by checking areas
mention above.

 

[marx404]

when my 94 SL did this in wintertime, it turned out to be the serpentine
belt. When was the last time it was changed or belt dressing applied?

marx404

 

[justastreekin]

mine did that usualy in the morning especialy when it was cold. problem was
the idler pully bearings i took em off and greased them.

 

[SnoMan]

mine did that usualy in the morning especialy when it was cold. problem was
the idler pully bearings i took em off and greased them.

Good Tip!

 

[JL]

Thanks for the tips about the Idle pulley and belt.
I will check them out!