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.
Inspection (Upper Front Valve Body)
Check valves for damage and wear. Ensure smooth operation of valves in valve body. Inspect oil holes and passages for clogging. Check valve spring for damage, rust and collapsed coils. Measure spring free length and replace if less than specification. Refer to UPPER FRONT VALVE BODY SPRING SPECIFICATIONS .
| Application | Color | Free Length: In. (mm) | ||||
|---|---|---|---|---|---|---|
| Kickdown Valve (1) | Purple | 1.565 (39.75) | ||||
| Secondary Regulator Valve (2) | Green | 2.806 (71.27) | ||||
| Throttle Valve (1) | None | .864 (21.95) | ||||
| Throttle Valve (2) | None | 1.693 (43.00) | ||||
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NO RELATED
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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.