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.
Model Identification
Vehicle model can be identified by the fifth character of Vehicle Identification Number (VIN). See MODEL IDENTIFICATION . VIN is stamped on a metal pad at top left of instrument panel, near windshield.
| Series (1) | Model | ||
|---|---|---|---|
| "G" | Van | ||
| "P" | Commercial Van & Motorhome | ||
|
|||
| Engine & Vehicle Series | Application | Trans. | Figure |
|---|---|---|---|
| 4.3L V6 "G" Series | Calif./Fed./High Alt. | All | Fig. 1 |
| 4.3L V6 "P" Series | Calif. & Fed. | All | Fig. 2 |
| 4.3L V6 "P" Series | Calif. | All | Fig. 3 |
| 5.OL V8 "G" Series | Fed. & High Alt. | All | Fig. 4 |
| 5.7L V8 "G" Series | Calif. | All | Fig. 5 |
| 5.7L V8 "G" Series | Calif./Fed. | All | Fig. 6 |
| 5.7L V8 "P" Series | Calif./Fed. | All | Fig. 7 |
| 7.4L V8 "G" & "P" Series | Calif./Fed. | All | Fig. 8 |
| 7.4L V8 "P" Series | Calif./Fed. | All | Fig. 9 |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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