Service bulletin 677153A
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 52572 |
| Published by NHTSA | 1997-08-21 |
| Manufacturer's number | 677153A |
| Manufacturer's date | 1997-06-01 |
| Replaces | 67-71-53 |
| NHTSA component | ELECTRICAL SYSTEM:IGNITION:MODULE |
NHTSA's summary
NO UPSHIFT/2ND GEAR ONLY AFTER COLD START-INTERMITTENT DTC 87 - HIGH RATIO ERROR (REPLACE EPROM). *TW
The document
No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.
Components
Electrical system, Ignition
| CHEVROLET C SERIES(LIGHT) | 1994 to 1995 |
|---|---|
| CHEVROLET G SERIES | 1994, 1995, 1996 |
| CHEVROLET K SERIES | 1994 to 1995 |
| CHEVROLET P SERIES | 1994 |
| CHEVROLET P SERIES | 1995 to 1996 |
| GMC C SERIES(LIGHT) | 1994 to 1995 |
| GMC G SERIES | 1994 to 1996 |
| GMC K SERIES | 1994 to 1995 |
| GMC P SERIES | 1994 to 1996 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 766504 | 1997-08-21. Service bulletin. MALFUNCTION INDICATOR LIGHT (MIL) ON, POOR DRIVEABILITY CONDITIONS (PERFORM FLASH CALIBRATION). *TW |
|---|---|
| 9774L60E13A | 1997-08-14. Service bulletin. CHUGGLE/SURGE ON TCC APPLY/NO DTC'S (REFLASH THE POWERTRAIN CONTROL MODULE (PCM)). *TW |
| 677159 | 1997-06-27. Service bulletin. CLUNK NOISE ON ACCELERATION AFTER A CLOSED THROTTLE COAST DOWN (NEW TCC CALIBRATION). *TW |
| 569603A | 1997-06-27. Service bulletin. ELECTRICAL INTERFERENCE IN MOBILE (TWO-WAY) RADIO (REPROGRAM VCM-A). *TW |