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.
Throttle Body: Inspection
- INSPECT THROTTLE BODY ASSEMBLY
- Check that the throttle valve opens and closes smoothly
- Check that there is no carbon accumulated around the throttle plate.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
TESTER CONNECTION SPECIFIED CONDITION CHARTTester Connection Condition Specified Condition 1 (M-) - 2 (M+) 20°C (68°F) 0.3 to 100 Ω If the result is not as specified, replace the throttle body.
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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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