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.
CALIFORNIA Models
Secondary (fresh) air is supplied to the exhaust port of No. 2 and No. 4 cylinder head by an ASV with cut-off valve. The air injection system is controlled by both the thermosensor and time governed by the ECM.
This system operates in the same manner as Federal 2WD models except there is only 1 ASV. See FEDERAL 2WD MODELS . See Fig 1 .
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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