M/T - Gear Rattle, Buzz Noise
Number 86-7-6 Date 12/85Subject: TRANSAXLE GEAR RATTLE, BUZZ NOISE
1985 AND EARLY 1986 FIEROS WITH 5-SPEED MANUAL TRANSAXLES
Some 1985 and early 1986 Fieros equipped with 5-speed manual transaxles may exhibit a transaxle gear rattle or buzz type noise most noticeable during acceleration or deceleration in the 30-55 mph. speed range. This noise may be audible in the passenger compartment on some vehicles and is usually transmitted by the shifter cables.
This noise condition may be repaired by replacing both transaxle shift cables with the cables specified below.
Description Part Number
Shift Lever Cable Assembly 14105617
Shift Select Lever Cable Assembly 14105618
The above cables have improved isolation and will help reduce the level of noise transmitted into the passenger compartment.
On 1985 vehicles it will be necessary to exchange the rubber grommets (used to seal the cable at the cowl cutout) from the old shift select cable to the new cable since the grommet on the new cable is larger. This can be done by cutting the grommets radially and removing them from each of the shift select cables. Next, install the grommet from the old cable onto the new cable and seal the cut with "3M Super Weatherstrip Adhesive", P/N 051135, or its equivalent.
Use applicable labor time and operation number. Add 0.1 hours for grommet exchange.