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 Positioner
With air hose from coasting valve air inlet to air cleaner disconnected, plug air inlet. Start engine and run at 2000 RPM, proceed as follows:
- Disconnect wire to coasting valve and connect a wire directly from battery to coasting valve solenoid. Release the throttle suddenly. RPM should drop to 950±50 RPM.
- If engine speed does not stabilize at this speed, adjust throttle positioner. When direct lead from battery is disconnected from coasting valve solenoid, engine speed should drop to 800 RPM.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.