I have the same issue with our Subaru Outback 1996. Our mechanic said we should replace the Fuel Vapor storage Canister. This is a carbon filter that stores fuel vapors that leak out of the tank. If it gets clogged with fuel on a hot day the vapor is going to leak out when you're at a stop and get pulled into the car by the AC.
Could just be throttle plate sticking--without engine running try to free with a screwdriver Could just be throttle plate sticking--without engine running try to free with a screwdriver
If the 1999 Cadillac Catera idles too fast, the cause could be a faulty idle stop solenoid. It may be damaged or it may have become loose. If it is idling rough or seems erratic, the problem could be a faulty EGR valve. Other problems could be a vacuum hose leak or a clogged PCV valve.
It could be a dirty air filter or a dirty throttle body.
I found that putting low grade gas in car mad it idle high. Does it every time
Very vague information. Could be the main jet in the carburator.
Listen and look for a vacuum leak. Could be anywhere.
Timing belt could be bad and could have jumped a tooth or you need a toon up.
Could be clogged converter in the exhaust system..
idles at 3000 will not go down 1993 grand prix gtp
My 1990 idles at about 850 and with the ac on 1100
Cinnamon Idles was born on October 26, 1975, in Chicago, Illinois, USA.
see previous answers, but if it idles high it might be the Mass Airflow Sensor. if your car idles too high for too long and you keep driving it, you could burn out the transmission module (very expensive )