1998 Chevrolet Cavalier

01-06-01-004 JAN 01 Idler Pulley - `Hoot/Whistle' Noise on Cold Start Up

How do I replace this part. Does anyone have the exact specs on this TSB. My idler pulley is definitley going bad.

2.2L 2200 Series engine. Automatic.

first off you have to remove the alternator. then support the engine from under neath. after that you have to remove the upper motor mount. then remove the bolts for the power steering 3 i believe. then theres 4 bolts that hold on the bracket that bolts to the side of the motor. you have to remove the bracket for the alternator also. the idler is conneted to the bracket that is bolted to the side of the engine.


well actually i think all you might have to do is release the tension on the belt and theres a bolt that holds the idler on.

not really sure cause i had to take all that crap out to change my head gasket and the idler was on the bracket.

im sure all you might have to do is un-do that one bolt. just try to take it out and see. if not then you have to do what i said above. but let me know when you try it

Subject:
Hoot/Whistling Noise At Start Up During Cold Ambient Temperature
(Replace Idler Pulley Assembly)

Models:
1998-2001 Chevrolet Cavalier
1998-2001 Pontiac Sunfire with 2.2 L Engine (VIN 4 - RPO LN2)

Condition

Some owners may comment on a loud "hoot" or whistling noise from the engine compartment during start up at cold ambient temperature of 0°C (32°F) or less. The noise would be of short duration, 5 seconds or less, and would not re-occur until the next cold ambient start up. This characteristic makes the condition difficult to diagnose in the dealership environment.

Cause

This condition may be caused by the bearing in the idler pulley. This condition will not occur when the engine is warm. A newly designed idler pulley is available from Service Parts Operations. The new pulley has a bearing with improved cold temperature performance characteristics.

Correction

Replace the idler pulley assembly. Refer to Service Information for replacement procedure.




Disconnect the negative battery cable.
Remove the drive belt.
Remove the idler pulley bolts.
Remove the idler pulley.
INSTALLATION PROCEDURE
Install the idler pulley. NOTICE: Refer to Fastener Notice in Service Precautions.
Install the idler pulley bolts.
Tighten the bolts to 50 Nm (37 ft. lbs.).
Install the drive belt.
Connect the negative battery cable.