Ever since we bought six years ago our 2001 Saturn SC1 which currently has 91,791 miles (153,267 km) we have experienced unintended acceleration throughout the year. This problem occurs at any time as soon as the engine warms up, regardless if the air conditioning is on or off. Before we come to a stop the idle speed rpm has already gone up from around the normal 800 rpm to a dangerous 2,200 rpm with the transmission still engaged in the drive position. Then, after we change the transmission position to park or neutral we turn the ignition off as the only way to stop the engine from reving at this high rpm. We proceed after a few seconds to turn the engine on and the rpm is at a normal rpm. Please note that the check engine light is not on and when we perform the diagnostic test using the new scanner we notice that there are no codes present. We would like someone to advice us on how we can resolve this problem. Thank you.
have the same problem?
Friday, September 21st, 2012 AT 8:11 PM