S15/T15 2WD Jimmy L4-151 2.5L (1985)
Throttle Position Sensor: All Technical Service Bulletins
Engine - Poor Performance, Poor Idle, and Engine Surge
Number:
86-122
Section:
6D
Date:
JULY, 1986
Sublect:
THROTTLE POSITION SENSOR
HEAT SHIELD KIT
Model and Year:
1982-1986 CELEBRITY WITH 2.5L (VIN CODE R) ENGINE 1982-1986 CAMARO WITH 2.5L (VIN CODE 2) ENGINE 1985-1986 M VAN WITH
TO:
ALL CHEVROLET DEALERS
Customer comments of reduced engine performance, poor idle, and engine surge, may be received on the above listed vehicles equipped with 2.5L L4
engines.
NEW HEAT SHIELD SERVICE KIT
After a vehicle has been accurately diagnosed as having an intermittent electrical signal from the throttle position sensor, replace the sensor with AC TPS
Service Kit, P/N 17078274. At the same time, remove the factory installed TPS heat shield attached by the EGR bolt and replace it with a new heat
shield service kit, P/N 17111750 (Figure 1). The contents of the service kit are:
DESCRIPTION
Screw assemblies - 2 each (hex head) Heat Shield - Stainless steel Graphics - Instruction sheet
Whenever a new 300 Series TBI is purchased from WDDGM and it is not complete with the AC TPS and the stainless steel heat shield it must be
retro-fitted to include the new service parts.
Use applicable labor time and labor operation numbers.