Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| ENGINE AND ENGINE COOLING - ENGINE | |||||
| 866503A | 09/01/1998 | 86-65-03 | 603825 | Subject regarding obd ii diagnostic trouble code (dtc) p1404 (reflash vcm). *yc | 03/08/1999 |
| 98017 | 08/24/1998 | 602394 | Some vehicles may exhibit increased oil consumption. *yc | 11/03/1998 | |
| 98120 | 08/25/1998 | 602267 | Some vehicles may exhibit a increased oil consumption. *yc | 10/20/1998 | |
| ENGINE AND ENGINE COOLING - ENGINE - GASOLINE | |||||
| 010601030A | 05/01/2002 | 010601030 | 634811 | Some owners may comment on higher than expected engine oil consumption. *tt | 10/09/2002 |
| 000601023A | 12/01/2001 | 000601023 | 628938 | Information used when diagnosing noise conditions such as engine rattle noise, spark knock at 2000 - 2500 rpm range, under a moderate to heavy load with a warmed up engine. *tt | 03/25/2002 |
| 99066D | 12/01/2001 | 99066C | 628925 | Some owners may experience a service engine soon light, misfire, rough idle orhard start due to a deposit build-up on the sequential central port fuel inujector (scpi) poppet valve(s). *tt | 03/25/2002 |
| 000604003A | 12/01/2001 | 000604003 | 628905 | Some customers may comment on rough idle after start up, especially after setting overnight. *tt | 03/22/2002 |
| 010601030 | 12/01/2001 | 628900 | Some owners may comment on higher than expected engine oil consumption, and having to add oil between oil changes. *tt | 03/21/2002 | |
| 000604014 | 04/01/2000 | 6091427 | Some customers may comment on hard, no, or slow start, backfire or kickback during crank / start, grinding or unusual noises during crank, diagnostic trouble code p0338. *tt | 10/11/2000 | |
| 99066B | 05/01/2000 | 99066A | 613602 | Some owners may experience a service engine soon light, misfire, rough idle or hard start. **mr | 07/25/2000 |
| 876521 | 08/01/1998 | 609646 | Slow cranking speed, extended cranking time, dtc p1626, hard starting. | 04/05/2000 | |
| 876507A | 07/01/1998 | 609582 | Rough idle after start, when vehicle has sat overnight and poppets sticking. | 04/04/2000 | |
| 990601020 | 10/01/1999 | 6089154 | Some customers may comment about a knocking or grinding noise with the engine running. *tt | 01/14/2000 | |
| 990601020 | 10/01/1999 | 6088933 | Vehicles may exhibit a knocking or grinding noise with the engine running. *tt | 01/11/2000 | |
| 98776002 | 06/01/1998 | 601901 | Subject on accessory drive belt noise due to power steering pump pulley misalignment. *yc | 08/28/1998 | |
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM | |||||
| 866503 | 07/01/1998 | 615078 | Some vehicles may set a false obd ii with diagnostic trouble code p1404. *tt | 12/27/2000 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| ENGINE AND ENGINE COOLING | |||
| 11/15/2002 | 0 | ||
| Engine seized up with no warning throwing rocker arm out through engine block. truck towed to gm dealership. over two years later, the truck is still at gm dealer. customer awaiting estimate of repair. | |||