Question about 1997 Pontiac Sunfire

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1997 Potiac sunfire

I changed teh fuel filtere and my car is still running rough when idling and than it cuts off. Aslo the check engine ligt is one and my dash says ETS off

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I would check the codes first, with OBDII systems the codes will give you a good idea of what my be doing it, the ETS off is your Electronic Traction-control System, either you have the emergency brake pulled up or it is a seperate issue,

things that may cause your symptoms are,
bad fuel pump-check fuel pressure,
bad MAPS-running the codes should show you if it is but you can also do a diagnostic test
misfire-same as the MAPS, codes will let you know which cylinder then it would be a matter of replacing spark plug and wire(I can't stress enough on getting high quality plugs and wires), if that does not fix the misfire then a compression test is in order
bad coil pack(s)-misfires on two cylinders that are on the same pack, sorry but I do not remember which cylinders are fired by which pack but if you follow the plug wires over to the pack you will see,
vacuum leak-hard to identify but may also have something to do with your ETS light, check the booster vacuum hose for cracks
bad IAC-again the codes should tell you but they may not,


there is the points that I would start off with, I hope that I have been helpful

Posted on Oct 11, 2008

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Is ther a site where i can go to see how to replace a fuel filter 1997 pontiac sunfire

Posted on Apr 26, 2009

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PLUG EVERYTHING BACK IN.....
REPLACE THE IAT (INTAKE AIR TEMP SENSOR) AND THE COOLANT SENSOR THEY BOTH WORK AS PART OF THE FUEL CONTROLL SYSTEM
LET ME KNOW HOW IT GOES
RATE MY SOLUTION

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