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Pontiac Sunfire Starting and Stalling Problems

232 messages,  Last post on Dec 05, 2009 at 9:32 AM

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

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#171 of 232 my 2005 pontiac sunfire the word "error" shows replacing the miles by topper692003 Nov 05, 2008 (7:36 pm)
this problem started after my car got into a front end collision, now that everything is back together the car will not start i have done some research and found out that this a common problem but i have not yet found the solution so i need some help i have done some self diagnostic and found that the injector's power stop after a short while when turning the engine over, that causes the engine to start for about 2 seconds and then stalls and also the radio is inop. the dash reads "ERROR" instead of the mileage i also noticed that the illumination for the dash does not work and the right headlight doesnt have power,,,, now it will run every once in a while after trying so many time, but all the other problems are still there . I have checked all the fuses and relays and spend many hours tracing the problem but no luck yet so if you have any suggestions or ideas they are well appreciated thanks....RUDY
#172 of 232 no crank'n 02 sunfire by lcrgal Nov 30, 2008 (11:34 am)
ok the deal is a few weeks ago my car would crank sometimes and not sometimes. (over a yr ago it was the fuel pump) but this time it would turn over fine and all but crank. 3 garages later and still the same, no codes no noth'n. new fuel filter, relays, coil packs, etc... well start'n yesterday it just turns over but doesn't try to crank. i've read yalls problems and solutions and maybe it could be the ignition switch. whatcha think?     "texas gal in distress" Replies to this message: lcrgal (Dec 04, 2008 6:41 pm)
#173 of 232 97 Pontiac Sunfire 2.2L Stalling and Rough Running by seamusz Dec 01, 2008 (8:38 pm)
About a month ago, I ran out of gas on my way to work. Ever since then, when my tank is below 3/4-1/2 full, I have sporadic rough running and even stalling. It is usually the worst when I first start up. If the car actually stalls and quits, I have to let it sit for 3 to 5 minutes and then it will usually run fine for 10 to 20 minutes. If I keep the tank above 3/4 a tank full, I have no problems. The engine light has come on a couple of times and the error reads "running lean". I have tried some of the suggestions for similar problems posted. I cleaned the throttle plate, I have replaced the fuel filter and checked the tank for gunk or clogged screen. As far as I can tell, everything has looked fine. I haven't had the pump itself checked and am trying to hold off going into the shop. Any suggestions? Replies to this message: green0886 (Dec 02, 2008 5:43 am) The_Maharishi (Feb 16, 2009 2:19 pm)
#174 of 232 Re: 97 Pontiac Sunfire 2.2L Stalling and Rough Running [seamusz] by green0886 Dec 02, 2008 (5:43 am)
Replying to: seamusz (Dec 01, 2008 8:38 pm) Sounds like the classic sign of fuel pump failure. More than likely your gas gauge is reading about 1/4 tank or less at the time the problem starts. I say this because the fuel cools the pump in the tank and when the pump is not functioning properly it will over heat more easily than at normal operation and cause it to stop working as a safety feature. This is not a simple fix it will require you to drop the fuel tank to replace the pump. The pump for a good one will run you any where from $300 to $375 and labor will be about $200. The "lean code" is because there isn't enuff fuel getting to each cylinder to read correctly. Had the same problem at about 105,000.
#175 of 232 2000 sunfire stalling. by mcyama Dec 03, 2008 (2:21 pm)
2000 sunfire stalling when pressing gas and letting cluch go at 500rpm need to keep above 2000 to 3000 rpms also works normal when cold after it heats up starts stalling.
#176 of 232 Re: no crank'n 02 sunfire [lcrgal] by lcrgal Dec 04, 2008 (6:41 pm)
Replying to: lcrgal (Nov 30, 2008 11:34 am) Update. it was the fuel pump and that made the wiring harness have a bad connection due to the high heat. anyway, $733.56 at the dealer since nobody could find the problem. i'm just glad she's go'n again.
#177 of 232 2000 sunfire odometer error by steve180 Dec 25, 2008 (7:29 am)
The check engine light came on and the odometer is flashing error. Car is running ok though. Any idea of what can be wrong?   Thanks Steve B
#178 of 232 Re: Yeah!, I don't feel alone on this problem [salem3p] by ShavenGorilla Jan 30, 2009 (6:50 am)
Replying to: salem3p (Jul 13, 2008 6:43 pm) My girlfriends car is the same year and has the same problem. We are also in Texas by the way.... anyway I am a decent mechanic and I could not figure it out so took it to one shop I trust. They could not figure it out..... took it to another shop.... they could not figure it out..... recently I took it to another shop that I have found in Plano that is quite good and trustworthy. They figured it out. The throttle body was leaking like a sieve. Apparently the previous shops just manually looked for loose hoses etc while trying to find a vacuum leak as opposed to putting their smoke machine on the thing like they should. Where the smoke comes out you have your leak. This is a pretty basic thing that the other shops should have been doing but clearly did not. So we are replacing with a used throttle body that I am ordering at this time. The new one is around $450. Sod that. The car itself is lucky if it is worth 3k so no point in spending too much money.   Anyway, if you did not get your stalling issue fixed yet have them smoke the throttle body and you may find your problem.   Cheers
#179 of 232 battery/alternator problems by whatdidigetn2 Feb 01, 2009 (10:26 pm)
I bought a 1996 pontiac sunfire last year, the previous owner said he had replaced the motor mounts, water pump, and brakes. It ran great except for it getting hot when at idle for long periods of time, a few months later had to replace the radiator due to a major crack. Before that had to get a new rotor and all the brakes replaced. Now today when i started the car the battery light was on, went to the gas station filled the car up and got back on the road no problem other then the battery light and now brake light was on, took the highway home and the longer i drove the more the power in the car went, first the radio sputtered in and out then finally just quit, then the dash lights and head lights got dimmer til they were out but the car was still running, didn't stop at all til i pulled in my parking lot and the car died right as i put it in park. The dome light would still work just a little dimmer then usual so the battery cant be all the way dead. Anyone have any ideas? reading on here i think it's the alternator and am going to get it checked in the morning, any other ideas? any help will be greatly appreciated!! Replies to this message: mark49 (Feb 26, 2009 10:35 pm)
#180 of 232 Re: Stalling Sunfire [jaxbuddy] by 2001pontiac Feb 02, 2009 (11:41 pm)
Replying to: jaxbuddy (Apr 24, 2008 12:08 pm) Had similar problem with my 2001 pontiac grand prix. Dealership changed crank shaft sensor but it didn't solve problem. Check when vehicle stalls if vehicle blows black smoke out of exhaust pipes. Car stalls when trying to accelerate, especially at a red light. P0118 engine coolant temperature sensor high input. I changed the Engine coolant temperature sensor , located under the large hose that connects from the radiator to the engine on the right side. It's at a slight angle under the radiator hose connecting to the engine block. Very hard to get to. Problem solved. Cost $15 bucks at autozone. I have been having this problem for over a year. I hope this information helps. Replies to this message: dwp325 (May 05, 2009 5:49 pm)

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