EXPERTEC TSB (86-122)

WARNING: This page is about the Camaro Base, 2.5 2, Automatic, which is a different variant/trim than selected.

Publication date: 1986-07-01
Reference number: 86-122

EXPERTEC TSB

TECHNICAL SERVICE BULLETIN

Reference Number(s): 86-122, Date of Issue: 07/01/86

INOPERATIVE TPS - INSTALL HEAT SHIELD

Model(s): 1982-86 Chevrolet Celebrity with 2.5L (VIN Code R) Engine

1982-86 Chevrolet Camaro with 2.5L (VIN Code 2) Engine

1985-86 Chevrolet M Van with 2.5L (VIN Code E) Engine

1985-86 Chevrolet S/T Truck with 2.5L (VIN Code E) Engine

Bulletin No.: Chevrolet 86-122

Date: 07/01/1986

SERVICE INFORMATION

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.

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 (Fig 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.

RECOMMENDED SERVICE PROCEDURE

REMOVE AIR CLEANER ASSEMBLY.
REMOVE AND DISCARD OLD HEAT SHIELD ATTACHED TO EGR MOUNTING BOLTS, BY REMOVING ONE BOLT ONLY.
REMOVE AND DISCARD OLD TPS ATTACHING SCREWS.
INSTALL NEW TPS (1) AND HEAT SHIELD (3) USING NEW ATTACHING SCREWS (2) PROVIDED WITH TPS HEAT SHIELD SERVICE KIT.
- TIGHTEN ATTACHING SCREWS TO 18 IN. LBS. (2.0 NM).
INSPECT TPS CONNECTOR LEAD PER BULLETIN 86-8-10.
INSTALL AIR CLEANER ASSEMBLY.

BULLETIN ILLUSTRATION LIST

Fig 1: Graphic