TSB 18-NA-073 — Cadillac, Chevrolet, GMC, Pontiac and Saturn Service bulletin
18-NA-073 is a service bulletin on file with NHTSA for 24 Cadillac, Chevrolet, GMC, Pontiac and Saturn models, 2000–2005 model years, filed and re-filed as 2 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 18-NA-073 names
Every document filed under 18-NA-073
Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.
| Document ID | Filed | Type |
|---|---|---|
| 18-NA-073 | August 19, 2024 | Service bulletin |
| 18-NA-073 | August 24, 2023 | Service bulletin |
What 18-NA-073 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 18-NA-073?
18-NA-073 is a service bulletin filed with NHTSA by Cadillac, Chevrolet, GMC, Pontiac and Saturn, covering 24 Cadillac, Chevrolet, GMC, Pontiac and Saturn models across the 2000–2005 model years. NHTSA's summary reads: This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
Which vehicles does 18-NA-073 cover?
NHTSA's file names Cadillac Escalade (2000–2001); Chevrolet Aveo (2004); Chevrolet Blazer (2000); Chevrolet Camaro (2000); Chevrolet Cobalt (2000, 2002); Chevrolet Corvette (2000); Chevrolet Impala (2000); Chevrolet Malibu (2000); Chevrolet S10 (2000); Chevrolet Silverado 1500 (2000), and 14 more vehicles listed on this page. A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB 18-NA-073 a recall, and is the repair free?
No. 18-NA-073 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of 18-NA-073?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 18-NA-073, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 18-NA-073. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.