TSB 04-06-04-051F — Cadillac and GMC Service bulletin
04-06-04-051F is a service bulletin on file with NHTSA for 2 Cadillac and GMC models, 1990–1999 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 04-06-04-051F names
| Vehicle | Model years |
|---|---|
| Cadillac Escalade | 1999 |
| GMC Sierra 1500 | 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999 |
Every document filed under 04-06-04-051F
| Document ID | Filed | Type |
|---|---|---|
| 04-06-04-051F | March 22, 2022 | Service bulletin |
What 04-06-04-051F covers
Fuel system — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 04-06-04-051F?
04-06-04-051F is a service bulletin filed with NHTSA by Cadillac and GMC, covering 2 Cadillac and GMC models across the 1990–1999 model years. NHTSA's summary reads: This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
Which vehicles does 04-06-04-051F cover?
NHTSA's file names Cadillac Escalade (1999); GMC Sierra 1500 (1990–1999). 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 04-06-04-051F a recall, and is the repair free?
No. 04-06-04-051F 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 04-06-04-051F?
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 04-06-04-051F, 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 04-06-04-051F. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.