Question about 1997 Pontiac Sunfire

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1997 Sunfire misfire

Thank you for your help, I will give that a try. Part of my cleaning was to take the plug wires off and spray the inside of the wires with my air hose and wipe the plugs off with a clean cloth. Did I cause a problem by doing this? You know it's christmas and I can't afford to replace anything right know. Thanks

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  • forman Jan 07, 2009

    my 97 2.2 sunfire 192km starts fine runs fine but when I pess ******* the gas it chugs hard repededly until I let up the gas I accelerates fine if gradual only

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I think if you just remove the wires and spray WD-40 in them and make sure the boots are slid down on the plugs and coil pack you should be ok. Also get some Dielectric grease and put on the wire ends that will make it easier to remove them next time,spray the coil pack with WD-40 also It won't hurt it and could run the water that might be there away. let me know it it works out

Posted on Dec 23, 2008

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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

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