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.
Test Description
2004 Oldsmobile Bravada RWDSECTION Test Description
WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to step number on diagnostic procedure.
- 3 - This step is testing for a CKP sensor signal to PCM.
- 4 - This step is testing for an internally shorted camshaft position sensor.
- 9 - This step is testing for spark output at more than one spark plug wire. The Spark Tester (J-26792) requires a minimum of 25,000 volts to operate.
- 10 - This step determines if spark is being delivered to distributor cap.
- 20 - This test is testing if PCM is providing a timing control signal to ignition control module.
- 21 - This test checks for a basic engine mechanical problem.
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.