Engine - Running Hot And/Or Loss of Coolant
Bulletin No.: 00-06-02-001File In Section: 06 Engine/Propulsion System
Date: January, 2000
Subject:
Engine Running Hot, Overheating and/or Loss of Coolant (Polish Radiator Filler Neck and Replace Radiator Cap)
Models:
1999-2000 Passenger Cars and Trucks with Composite Radiator End Tank
Condition
Some customers may comment on one or more of the following conditions:
^ Engine running hot
^ Engine overheating, and/or
^ Loss of coolant/low coolant message
Cause
The radiator filler neck may have an imperfection in the sealing surface.
Correction
Important:
DO NOT REPLACE THE RADIATOR.
Using a piece of 400 grit wet/dry sandpaper backed with a flat piece of wood, polish the filler neck sealing surface using a circular motion.
Replace the radiator pressure cap with a cap of the same part number as shown in the GM Service Parts Catalog.
Warranty Information
For vehicles repaired under warranty, use:
Labor Labor
Operation Description Time
J3020 Cap, Radiator Filler - Replace 0.2 hr