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.
Idle-Up System: Description
Accessories powered by the engine can cause a drop in the engine RPM. The idle-up systems are used on those models with engine powered accessories that decrease engine RPM. To maintain proper engine performance, the idle-up system increases the engine RPM to the required specifications.
Non-turbo and turbo models use the same idle-up system consisting of an air by-pass solenoid valve, A/C switch and relay, P/S switch, high altitude compensation, hot idle compensation, connecting hoses and electrical components.
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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