Impala V8-305 5.0L VIN H 4-bbl (1982)
Cruise Control Servo: All Technical Service Bulletins
Cruise Control - Loss of Speed From Set Point or Hills
Number:
83-118
Section:
9 (VIm)
Date:
Jan., 1984
Subject:
CRUISE CONTROL PERFORMANCE ON VEHICLES WITH THM 700-R4 TRANSMISSIONS
Model and Year: 1982-83 IMPALAS AND CAPRICES
TO:
ALL CHEVROLET DEALERS
Some cruise control systems on 1982-83 Impalas and Caprices equipped with the THM 700-R4 transmission may experience a loss of speed from the set
point on long hills. This condition may be due to certain vacuum conditions and may not allow a 4-3 downshift in the transmission.
Figure 1
Service kit (P/N 14080393) has been released to correct this condition. The following instructions are included in the kit and should be used to correct
the vehicle (reference Figure 1 for a diagram of the revised system).