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 MANUALSCHEVROLET1990RV CUTAWAY 7.4 N, 475/M40REPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROLS - ADJUSTMENTSTPS ADJUSTMENT (GASOLINE)NOTES
1990 Chevrolet RV Cutaway 7.4 N, 475/M40
TPS Adjustment (Gasoline): Notes
1990 Chevrolet RV Cutaway 7.4 N, 475/M40SECTION Notes
NOTE:
On all models except 2.8L engine (VIN R), Throttle Position Sensor (TPS) is NOT adjustable. Resistance values given in table are for reference only. If resistance value is not as specified, replace TPS. For testing procedures, refer to appropriate SELF-DIAGNOSTICS or SYSTEMS & COMPONENTS TESTING article.
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.