Technical Service Bulletin 99027 — 1999 CHEVROLET SUBURBAN
POWER TRAIN:AUTOMATIC TRANSMISSION
Bulletin Details
| TSB ID | 99027 |
| Manufacturer | |
| Vehicle | 1999 CHEVROLET SUBURBAN |
| Component | POWER TRAIN:AUTOMATIC TRANSMISSION |
| Communication Date |
Bulletin Summary
GENERAL MOTORS HAS DECIDED THAT SOME VEHICLES EQUIPPED WITH 4.8L OR 5.3L ENGINES AND 4L60-E AUTOMATIC TRANSMISSIONS, AND VEHICLES EQUIPPED WITH 3.73 REAR AXLES AND ORDERED WITH THE HEAVY-DUTY TRAILERING PACKAGE MAY NOT HAVE INCLUDED THE MERCHANDISING-INTENT AUXILIARY TRANSMISSION OIL COOLER. *TT
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.