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.
Minimum Throttle Valve Pressure Check
1992 GMC Magnavan 5.7 KSECTION Minimum Throttle Valve Pressure Check
- Ensure throttle valve cable is properly adjusted. Attach pressure gauge to line pressure tap. See Figure . Apply parking brake and service brakes.
- Check line pressure as specified. See OIL PRESSURE SPECIFICATION CHARTS . Pressure readings must be within specification. If pressure reading is not within specification, see TROUBLE SHOOTING .
RENDER: 1.0x
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.