K Yukon/Denali 4WD V8-6.5L DSL Turbo VIN S (1999)
Coolant Filler Neck: All Technical Service Bulletins
Engine - Running Hot And/Or Loss of Coolant
Bulletin No.: 00-06-02-001
File 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