mharvey Posted January 24, 2014 Report Share Posted January 24, 2014 In my '87 505 v6, the idle has jumped up to around 1500 rpm after idling fine for years. This is the first time its ever happened. If I rev the engine and then release the pedal, the idle will momentarily return to normal then jump back up to 1500. This is with a warm engine and no warning light. It has been cold here lately. I have removed the idle speed stabilizer and cleaned it, but I haven't put it back on yet. Does anyone have any ideas on how to test this component before I reinstall it? Thanks, Mitch Quote Link to comment Share on other sites More sharing options...
anj Posted January 24, 2014 Report Share Posted January 24, 2014 Hi Mitch Same thing happened to me and my fix was to clean the throttle body and MAF sensor. Arun Quote Link to comment Share on other sites More sharing options...
mharvey Posted January 24, 2014 Author Report Share Posted January 24, 2014 Thanks! I'll check it out. Quote Link to comment Share on other sites More sharing options...
Bean Posted January 25, 2014 Report Share Posted January 25, 2014 Keep us posted on the results... There's a couple other things that can cause that kind of behaviour, but hopefully a good cleaning is all that's needed. Rabin Quote Link to comment Share on other sites More sharing options...
mharvey Posted January 26, 2014 Author Report Share Posted January 26, 2014 Thanks for the help. It worked! It seems to be running fine now. Quote Link to comment Share on other sites More sharing options...
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