Why is my high idle light not working?
The switch talks to the GEM, which turns on the light and talks to the PCM, which contols the high idle. When mine sticks it’s usually in the “brake off” (no light) position, and I just reach down and fiddle with the switch to get the light to come on. That little plunger sensor doesn’t work on mine either.
Is the parking brake switch on the high idle?
Yes, the switch on the parking brake has to switch when you push the pedal down for the high idle to work. The switch talks to the GEM, which turns on the light and talks to the PCM, which contols the high idle.
Why is the high idle not working on my 2002 F550?
High idle not working on my 2002 f550.Had truck at dealer today and still not repaired,would appreciate any answers to try and solve the problem . Thanks [*]If the parking brake isn’t set, it won’t idle up. [*]If the clutch pedal postiion switch is messed up, it won’t idle up.
What’s the difference between high idle and low idle?
Step by step automotive repair guide on how to troubleshoot and fix an engine that is idling high (fast) or low (slow). (Note: The engine idle speed is controlled by the computer and is NOT adjustable.)
The switch talks to the GEM, which turns on the light and talks to the PCM, which contols the high idle. When mine sticks it’s usually in the “brake off” (no light) position, and I just reach down and fiddle with the switch to get the light to come on. That little plunger sensor doesn’t work on mine either.
Where is the fast idle switch on a car?
The manual fast idle switch is operated using the cruise control buttons located on the left hand side of the steering wheel. The park brake is set. The brake pedal is not pressed. The vehicle must not be moving and the accelerator must not be pressed.
What causes the idle speed to go up or down?
The idle air control valve is programmed to regulate and maintain the engine idle speed at a constant rate. If the valve fails or has any issues it can cause the idle speed to be thrown off. This may result in an unusually high or low idle speed, or in some cases a surging idle speed that repeatedly climbs and falls. 2. Check Engine Light comes on
How does the preset fast idle switch work?
For the preset Fast Idle, press and release the cruise set switch. This will set the preset fast idle speed. For the variable fast idle, press and hold the accelerator at the desired RPM, then press and release the cruise control switch to set the desired idle speed.