bvaubel Posted February 5, 2005 Report Share Posted February 5, 2005 My 94 SLS has had an erratic RPM problem for the last two weeks. Last night I was sitting in a parking lot in Park with the engine running and the RPM's would vary between 1100 and 1500. Within a couple minutes I started overheating, it went to 240 when it usually stays right at 207. Smoke started to roll. As soon as I left the parking lot it cooled back down and stayed in the normal range as long as I was moving. As soon as I hit a stop light it started heating again. Darn thing wants to go 40 or 50 mph without touching the accelerator. My hunch is the cat convertor is plugged. Any ideas? Thanks, Brian Link to comment Share on other sites More sharing options...
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