Syclone V6-262 4.3L Turbo (1991)
FIGURE 1
Some 1988-91 S trucks (two wheel drive) and 2 door utility models equipped with 4.3L engines and either automatic or manual transmissions, may
experience an idle shake or vibration. This condition is most noticeable at engine speeds below 1500 RPM.
If this condition is encountered, and cannot be corrected using normal diagnostics, a newly released rear transmission mount may be installed (see figure
1). This rear transmission mount is currently in use on 1988-90 C1, C2, and C3 pickups with 4.3L engines and 3 speed automatic transmissions (M40).
When installing this mount, new service washers (one washer per bolt) are required for retaining mount to transmission. Also install a new nut on the
stud when attaching mount to cross member.
Important
This mount is not for use on 1991 S/T 4 door utility or any 1988-91 T model pickup or utility.
PARTS INFORMATION
Parts are currently available from GMSPO.
WARRANTY INFORMATION For vehicles repaired under warranty use:
Labor Operation:
K2283 (Manual Trans.)
Labor Time:
0.4 Hrs.
Labor Operation:
K6723 (Automatic Trans.)
Labor Time:
0.4 Hrs.
