K 1500 Yukon 4WD V8-5.3L VIN Z Flex Fuel (2003)
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1. Determine the size, the pitch, and the depth of the damaged thread. If necessary, adjust the stop collars on the cutting tool and tap to the required
depth.
CAUTION: Refer to Safety Glasses Caution in Service Precautions.
IMPORTANT: Refer to the thread repair kit manufacturer's instructions regarding the size of the drill and tap to use. Avoid any buildup of chips.
Back out the tap every few turns and remove the chips.
2. Drill out the damaged threads. Clean out any chips.
3. Lubricate the tap with light engine oil. Tap the hole. Clean the threads.
4. Thread the thread insert onto the mandrel of the installer. Engage the tang of the insert onto the end of the mandrel.
5. Lubricate the insert with light engine oil, except when installing in aluminum and install the insert.
IMPORTANT: The insert should be flush to one turn below the surface.
6. If the tang of the insert does not break off when backing out the installer, break the tang off with a drift.
Training
DEALERS
All U.S. Dealers participating in the GM Common Training Program can enroll through the GM Common Training System Website at
https://www.gmcommontraining.com. Within the website, there are individual training paths that are designed to assist in planning the training needs
for each individual. Technicians should advise their Service Manager of their training needs including course names and course numbers. Dealers who
have questions about GM Common Training should contact the GM Common Training help desk at 1-888- 748-2686. The help desk is available
Monday through Friday, 8:00 A.M. - 8:00 P.M. Eastern Time, excluding holidays. For GM Access support, contact the GM Access Help Desk at
1-888- 337-1010.
FLEETS
GM Fleet customers with GM Warranty In-Shop agreements are able to participate in service technical training through GM Common Training/GM
Service Technical College (STC).