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Pontiac Sunfire Starting and Stalling Problems

233 messages,  Last post on Dec 06, 2009 at 11:02 AM

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What is this discussion about? Pontiac Sunfire, Coupe, Convertible

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#201 of 233 Re: Starting Problem - intermittant [markamooresr] by mark49 Mar 12, 2009 (2:32 am)
Replying to: markamooresr (Mar 10, 2009 8:32 am) start from fuel tank make sure no object is blocking the fuel pickup.then i would make sure fuel pump holds correct pressure
#202 of 233 Re: 2000 sunfire will not start [courtleigh2] by debnb Mar 12, 2009 (4:56 am)
Replying to: courtleigh2 (Mar 11, 2009 7:15 am) similar to my sons car was turning over could hear the fuel pump but would not start. Our problem turned out to be a corroded wire going to the computer that is located under the right front inner fender. There was an orange wire running to the computer when he disconnected it - it turned out to be corroded he cut the bad piece off put it back together and car turned over first try. Replies to this message: courtleigh2 (Mar 12, 2009 6:12 am)
#203 of 233 Re: 2000 sunfire will not start [debnb] by courtleigh2 Mar 12, 2009 (6:12 am)
Replying to: debnb (Mar 12, 2009 4:56 am) thanks! we will be trying that this afternoon, i'll let you know.
#204 of 233 by courtleigh2 Mar 21, 2009 (4:27 pm)
still not working!   everything is holding pressure, voltage is correct, have tried resetting the anti theft. turns over, and will not fire. changed the oil sending unit, as well. any other ideas??????? i am LOST. Replies to this message: markamooresr (Mar 23, 2009 4:42 am) scoop444 (Mar 27, 2009 7:02 am)
#205 of 233 Re: [courtleigh2] by markamooresr Mar 23, 2009 (4:42 am)
Replying to: courtleigh2 (Mar 21, 2009 4:27 pm) I just changed my fuel tank module and I am going on 3 days of no failure. I pray that continues to work. Have you done that yet? Replies to this message: scoop444 (Mar 27, 2009 7:02 am)
#206 of 233 Re: [markamooresr] by scoop444 Mar 27, 2009 (7:02 am)
Replying to: markamooresr (Mar 23, 2009 4:42 am) I had the exact same problem myself about 2 months ago. I had to replace the fuel pump and everything is OK.
#207 of 233 Fixed by markamooresr Mar 27, 2009 (7:33 am)
I relaced my fuel pump module last week and all has been fine. I also has problems with my headlights adn was able to fix that on my own too. You have to un-wrap the entire from wiring harness, find the breaks and re-tape it.
#208 of 233 Engine surges,eats up gas,sluggish acceleration by kingavy Apr 20, 2009 (2:33 am)
I have a 1995 Pontiac Sunfire Gt 2.3L....this car has been a huge problem ever since I bought it except now it got a lot worse. All of the sudden the other day my check engine light comes on with codes for a MAP sensor, O2 sensor, and fuel burning too lean. Right after the light came on, the car started running really rough. The O2 sensor code had already come up before but I had it replaced so it's only a month old. I just replaced the MAP sensor the other day. The car accelerates a little better but still way too sluggish. I'm not sure if it's misfiring but the engine seems to surge and vibrate rough when idling at a stop light. I also had a friend replace the spark plugs and while we were doing it we noticed one of the boots was taped to the cover, one of them was stuck inside the cover, and the other 2 were suctioned to the spark plugs. I'm guessing the guy who owned it last just rigged it so he didn't have to spend a small amount of money on boots or plug wires. Now I get about 5 miles to the gallon and sometimes the engine "surges" so rough that it feels like it wants to take off while i'm sitting at a stop light. A sudden powerful thrust. If anyone can help me i'd appreciate it greatly. Oh yeah, I can also smell gas burning strong.....i don't know if that means its rich or something.
#209 of 233 Re: Stalling Sunfire [2001pontiac] by dwp325 May 05, 2009 (5:49 pm)
Replying to: 2001pontiac (Feb 02, 2009 11:41 pm) I am having the same problem and I was wondering on you grand prix did you get any movement from your tempature gauge inside the car? I think this is my problem with my car but I want to make sure cause my gauge doesnt budge or is it more than one problem?
#210 of 233 1998 2.2L Sunfire quit running by mkehayias May 26, 2009 (2:27 am)
I bought it used three weeks ago. Plugs, wires, oil, filters, serpentine belt, tensioner, and all brake parts at the wheels changed.   Two days ago the check engine light came on. Yesterday, traveling at 65 mph, the car just quit running. I disconnected the battery leads and shorted them together, the car fired up, travelled 40 feet and died again. No other symptoms, just died. Now the car won't fire up.   Car has plenty of oil. No overheating. The only other thing wrong is two front tires that are out of balance, they cause the car to vibrate badly above 45 mph.   Is there a procedure to read OBD codes without a reader? Is there a specific procedure to reset the ECM/ECU? Where is the ECM/ECU located? Anyone had this same problem? Thanks. Replies to this message: slackerman (May 26, 2009 6:23 pm) mkehayias (May 27, 2009 1:59 pm) mkehayias (May 27, 2009 5:36 pm) slackerman (May 27, 2009 6:15 pm)

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