TCC Chuggle or Surge, New PROM
86pontiac05Number 86-6 (Gasoline) - 43 Date 5/86
Subject: TCC CHUGGLE OR SURGE
1985-86 6000 AND GRAND AM MODELS WITH LR8 AND L68 2.5L-L4 ENGINES (VIN CODE R AND U)
CUSTOMER COMMENTS OF "CHUGGLE" OR "SURGE" MAY BE RECEIVED ON 1985-86 SUBJECT VEHICLES WITH 2.5L-L4 ENGINES WHEN THE TORQUE CONVERTER CLUTCH (TCC) ENGAGES AT LOWER VEHICLE SPEEDS.
THIS CONDITION WILL BE IMPROVED BY THE INSTALLATION OF A NEW SERVICE PROM. THESE SERVICE PROMS CONTAIN CALIBRATION CHANGES TO ENHANCE VEHICLE DRIVEABILITY. THE TCC ENGAGEMENT SPEED WILL BE RAISED TO 49 MPH. SERVICE PROM APPLICATIONS ARE LISTED BELOW:
PROM P/N APPLICATION
1228020 1985 6000 WITH 2.84 AXLE
1227924 1985 6000 WITH 2.39 AXLE
1228021 1985 GRAND AM WITH 2.84 AXLE
1228019 1986 6000 WITH 2.84 AXLE
1228018 1986 6000 WITH 2.39 AXLE
1228017 1986 GRAND AM WITH 2.84 AXLE
USE APPLICABLE LABOR TIME AND OPERATION NUMBERS.