I have a 86 volvo 240 dl in extremely good condition.
I turned the car on and the motor revved up past the red line.
I took it to my mechanic with original volvo manual and he could not figure it out
I replace idle control valve, called my self checking hoses and proper vacuum sources but cant figure it out.
I think when shop replaced my accelerator cable and ac compressor etc they hooked up a vacuum or some wire wrong.
I am very desperate as I cant find any help on this issue.
also when I drive it and turn the cruise on it accelerates fast. If I step on brake or turn off cruise the car drives fine.
PLEASE HELP if you have an ideas of vacuum hose routing check, improper wiring or defective part ideas. THANK YOU
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