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.
Diagnostic Aids
2004 Oldsmobile Bravada AWDSECTION Diagnostic Aids
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix, 2003 Chevrolet Malibu, and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- An arcing spark plug wire or an arcing ignition coil to the ICM may cause a stall, misfire or a no start condition.
- The following may cause a no start condition:
- Crankshaft reluctor wheel damage or improper installation.
- The CKP sensor coming in contact with the reluctor wheel.
- Foreign material passing between the CKP sensor and the reluctor wheel.
- Excess crankshaft end play will cause the CKP sensor reluctor wheel to move out of alignment with the CKP sensor. This could result in any of the following conditions:
- A no start.
- A start and stall.
- Erratic performance.
- An improperly installed crankshaft could cause excess crankshaft end play.
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.