DouginDenver Posted November 6, 2009 Report Share Posted November 6, 2009 2000 S40. Starts fine - drive 2 miles and park. Come back 2 hours later and it starts, but instantly revs to like 3,000 rpm. Shut off and try to restart. Turns over, but will not start and temp guage pegs to hot although engine is cool. Two hours later it starts right up, but revs jump a few times at red lights on the way home. Something is starting to fail? Any idea what? Link to comment Share on other sites More sharing options...
Ihatespeedbumps Posted November 6, 2009 Report Share Posted November 6, 2009 I'm sure your engine light is on and has stored an A1 code? Replace your ECT and thermostat. Link to comment Share on other sites More sharing options...
DouginDenver Posted November 6, 2009 Author Report Share Posted November 6, 2009 No CEL. What does ECT stand for? Link to comment Share on other sites More sharing options...
Ihatespeedbumps Posted November 6, 2009 Report Share Posted November 6, 2009 Engine coolant temp sensor. Link to comment Share on other sites More sharing options...
MrWinkey Posted November 7, 2009 Report Share Posted November 7, 2009 ;) Link to comment Share on other sites More sharing options...
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