929 V6-3.0L DOHC (1993)
Muffler: All Technical Service Bulletins
Main Silencer - Vibrating Noise
Bulletin No.: 020/93
Issued: 5/19/93
Revised:
Applicable Model/s
1993 929
Subject
VIBRATING NOISE FROM THE
MAIN SILENCER
APPLICABLE VINS
1993 929 Models Vehicles with a VIN of JM1HD461*P0200001 through JM1HD461*P0205954.
DESCRIPTION
On some vehicles, when idling or accelerating around 2000 rpm, a vibrating noise may be heard from the main silencer's variable valve spring. The
length of the spring for the variable valve has been modified to correct this condition.
REPAIR PROCEDURE
If the above condition exists, replace the variable valve spring with a modified part.
1.
Raise the vehicle on a hoist.
