Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1987HI-CUBE 6.2 J, 475/M40REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 45 (DIAGNOSIS - A/T)APPLICATIONTHM 3T40 APPLICATION
1987 Chevrolet Hi-Cube 6.2 J, 475/M40
THM 3T40 Application
1987 Chevrolet Hi-Cube 6.2 J, 475/M40SECTION THM 3T40 Application
WARNING: This page does not describe the selected car, but rather 138 other vehicles, including the 1992 Saturn SL2, 1992 Saturn SL1, 1992 Saturn SL, 1992 Saturn SC, and 1992 Pontiac Trans Sport. However, it is still accessible from the selected car via links, so may be relevant.
THM 3T40 APPLICATION
| Application (Body Code) | Engine | |||||
|---|---|---|---|---|---|---|
| Buick | ||||||
| Century (A) | 2.5L & 3.3L | |||||
| Skylark (N) | 2.3L, (1) 2.5L & 3.3L | |||||
| Chevrolet | ||||||
| Beretta (L) | 2.2L, 2.3L & 3.1L | |||||
| Cavalier (J) | 2.2L & 3.1L | |||||
| Corsica (L) | 2.2L, 2.3L & 3.1L | |||||
| Lumina (W) | 2.5L & 3.1L | |||||
| Lumina APV | 3.1L | |||||
| Oldsmobile | ||||||
| Achieva (N) (2) | 2.3L & 3.3L | |||||
| Cutlass Calais (N) (1) | 2.3L, 2.5L & 3.3L | |||||
| Cutlass Ciera (A) & Cutlass Cruiser (A) | 2.5L & 3.3L | |||||
| Cutlass Supreme (W) | (1) 2.3L & (2) 3.1L | |||||
| Silhouette | 3.1L | |||||
| Pontiac | ||||||
| Grand Am (N) | 2.3L, (1) 2.5L & (2) 3.3L | |||||
| Grand Prix (W) | (1) 2.3L & (2) 3.1L | |||||
| LeMans (T) | 1.6 & 2.0L | |||||
| Sunbird (J) | 2.0L & 3.1L | |||||
| Trans Sport | 3.1L | |||||
| 6000 (A) (1) | 2.5L & 3.1L | |||||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.