Diagnosis - Torque Converter Clutch: Applications
THM 3L30 APPLICATIONS (1989 & 1990)
| Manufacturer | Model | Engine |
|---|---|---|
| Chevrolet | Postal Vehicle | 2.5L |
| GMC | Postal Vehicle | 2.5L |
THM 4L60 APPLICATION (1989)
| Model | Engine | |
|---|---|---|
| Chevrolet | ||
| Astro Van | 2.5L, 4.3L | |
| Blazer | 2.5L, 4.3L, 5.7L, 6.2L | |
| Cutaway Van | 4.3L, 5.7L | |
| Hi-Cube Van | 4.3L, 5.7L | |
| Passenger Van | 4.3L, 5.0L, 5.7L, 6.2L | |
| Sport Van | 4.3L, 5.0L, 5.7L, 6.2L | |
| Suburban | 5.7L, 6.2L | |
| Truck | 2.5L, 4.3L, 5.0L, 5.7L, 6.2L | |
| GMC | ||
| Cutaway Van | 4.3L, 5.7L | |
| Jimmy | 5.7L, 6.2L | |
| Magnavan | 4.3L, 5.7L | |
| Passenger Van | 2.5L, 4.3L | |
| Rally Van | 4.3L, 5.0L, 5.7L, 6.2L | |
| Safari Van | 2.5L, 4.3L | |
| School Van | 4.3L, 5.7L | |
| Truck | 2.5L, 4.3L, 5.7L, 6.2L | |
| Vandura | 4.3L, 5.0L, 5.7L, 6.2L | |
THM 4L60 APPLICATION (1990)
| Model | Engine | |
|---|---|---|
| Chevrolet | ||
| Astro Van | 2.5L, 4.3L | |
| Blazer | 2.5L, 4.3L, 5.7L, 6.2L | |
| Cutaway Van | 4.3L, 5.7L | |
| Hi-Cube Van | 4.3L, 5.7L | |
| Passenger Van | 4.3L, 5.0L, 5.7L, 6.2L | |
| Sport Van | 4.3L, 5.0L, 5.7L, 6.2L | |
| Suburban | 5.7L, 6.2L | |
| Truck | 2.5L, 4.3L, 5.0L, 5.7L, 6.2L | |
| GMC | ||
| Cutaway Van | 4.3L, 5.7L | |
| Jimmy | 5.7L, 6.2L | |
| Magnavan | 4.3L, 5.7L | |
| Passenger Van | 2.5L, 4.3L | |
| Rally Van | 4.3L, 5.0L, 5.7L, 6.2L | |
| Safari Van | 2.5L, 4.3L | |
| School Bus | 4.3L, 5.7L | |
| Truck | 2.5L, 4.3L, 5.7L, 6.2L | |
| Vandura | 4.3L, 5.0L, 5.7L, 6.2L | |
NOTE:
This article contains test charts that are part of General Motors Computerized Engine Controls. Only those charts required to test Torque Converter Clutch (TCC) system and related circuits are included. Other diagnostic codes may appear while performing TCC electrical diagnosis. For complete information on General Motors Computerized Engine Control systems see appropriate COMPUTERIZED ENGINE CONTROLS article in ENGINE PERFORMANCE section.