Questions & Answers for: Ford Mustang no speed control

speed control system is controlled by the powertrain control module (PCM). The speed control system is designed to maintain a selected vehicle speed between 48 and 200 km/h (30 and 124 mph). The speed

...i have a 2000 gt mustang and my ac is stuck on low, it wont blow any harder do you mean the fan speed?there is a resistor block that needs replacing that controls the speed or the fan is no good. ...

...speed turns on when the engine is hot and the air conditioning is on. I believe the fan should turn on automatically if the a/c is on. The fan is controlled by the pcm and the fan speeds are ...

...speed! is the temp gauge working? sounds like coolant temp sending unit... or a possible engine coolant temp sensor or ect sensor. also check the constant control relay module (ccrm) -- that module ...

...speed sensor. One 10mm bolt with clip holds it to trans. This is pretty common on the 2005 Mustangs, it's caused by failing stepper motors in the instrument cluster, they control the movement of the ...

...control (IAC) that is located on the side of the throttle body may be stuck closed. This controls idle speed and cold start idle speed. It can be cleaned if it is removed and disassembled. Hope this ...

I would check the EGR valve and PDFE senor to make sure its not stuck open since this controls idle speed. If it is stuck slightly open car will rev then stall motor does not know idle speed when open

how do i reset idle? Technically the idle speed is not adjustable.  The computer controls idle speed with the idle speed control motor.Base idle is around 500 RPM with normal idle in park at 800

...speed control valve and throttle valve but always run a OBD2 fault code as well as the cleaning procedure. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or ...

speed what could causeing this? Do you have the same size tires on the rear? That will change the limited slip differential dynamics at higher speeds and tell the computer one wheel is spinning faster