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Pontiac Sunfire, Coupe, Convertible
Sep 18, 2007 (5:24 pm)
About a month ago, our 2003 Pontiac Sunfire (63000 miles) wouldn't start. My dad towed it into his shop (large machinery mechanic) said he could not hear the fuel pump. My brother took off the gas tank and dipped the pump into a bucket of gas & it began pumping. My daughter had trouble with it a couple weeks ago starting but a friend got in & started it right up. We used it Sunday with no problems. Went out to start it this evening & now it won't start again. Not sure if it's the fuel pump or related to the computer ???? Also wondering if it could have anything to do with some kind of security system. Radio/cd player is now locked up. Any suggestions???????????? Please help - dad is very sick & can't work on it & I am trying to put 2 kids through college = no $$$$$$$$$$$.....
#89 of 306 Re: mrsjplk [mrsjplk]
Oct 01, 2007 (2:03 pm)
this is probably a stupid question but have you tried changing the spark plugs?
#90 of 306 Re: 98 Sunfire - Random shuddering.. [bfd18]
Oct 17, 2007 (11:53 am)
I have a 2001 pontiac sunfire was doing gas treatments each time i filled up weekly, then forgot to do it last two times and now my car stalled out on me and won't start can't seem to figure out if this is the problem or not but it happened before and we did a complete tuneup and oil change and began the weekly treatments and the car worked fine is the ethanol causing my problem no one seems to know
any one please help i am now without a vehicle and having it towed tonight to my house from where it stranded me but dont want to spend $241 on a new fuel pump. We did not change the fuel filter though so doing that tonight.....PLEASE HELP!!!!!!!!!!
#91 of 306 Re: mrsjplk [mrsjplk]
Oct 17, 2007 (3:12 pm)
I just had the Fuel Pump replaced in our '03 ,and it would NOT start before. SO if your car is sporadically starting I would say it's a "spark" problem. Keep it simple 1st. Check the battery connections, tighten them. Look at the cables make sure they're good. Your radio/security is hinting at a battery power gap. If this doesn't do it..The the next time it won't start get someone to hit the starter w/ a rubber mallet, while you crank it. ( you could have a flat spot in the starter which would show up here) You can lie down in front and it' under the motor, in the middle, right up front. Looks like a tin can w/ thick wires coming from the top. A 10mm wrench will tighten the brackets that hold it on too. If that's not it I'd move to the ICM (Ignition Control Module) about $100 if you need one. It's right on top of the motor, and says 2.2L Ecotec on it ( it's actually the little silver piece the size of a cell phone with the harness attached. It's easy to take off and on. Just loosen the 4 bolts, unclip the wires, and bend the bracket holding the lines 'up' to get it out. Some Napa stores have testers for FREE that can tell u if it's bad. (So, NO, contrary to popular mechanic belief, u don't have to pay $90 and have the whole car hooked up) This would be a good start and not really cost you anything to check except some time and dirty hands.
#92 of 306 96 sunfire - rough idle
Oct 24, 2007 (4:52 pm)
i recently bought a 96 sunfire and i done know much about it yet but the check engine light recently came on, it could be the sensor thats in the manifold, i had to heat up a bolt to try and get it out and i may have fried the sensor too. my question is would that sensor cause the car to idle rough at low rpms? it seems like its running way too rich now, theres a bit of black smoke that comes out and a little bit of black flecks. i know its not oil though. when i rev it high it smooths out but even when cruising on the highway at lower rpms it will run a bit rough, but downshifting and gunning it clears it right up. anyways might that be the problem or something else? any help would be great
#94 of 306 Re: My Sunfire is stalling [sid_jr08]
Nov 12, 2007 (9:21 pm)
Hi, I have a 2001 sunfire and had almost the same exact experience. My car was doing that same stuff. Do you have an alarm system by any chance? When alarms are installed, they splice into the ignition wire with this cheap splice clip that over time will seperate the wire and prevent it from doing its job. It sounds to me like, its your ignition wires. They're thin and apt to short I guess.
Fixing my car last winter was a nightmare. I did every thing everyone said I should but it was just the ignition wire that wasn't making contact any more.
My car has been running great for the last 6 months but I just ran out of gas and now it won't fuking start again. It was the ignition wire last time, I wonder wtf it'll be now. Argh!
Anyways look into the ignition wire thing, its the answer.
I just mistakenly posted this on the wrong question, so sorry, but I wanted to address this guy so here.
#95 of 306 1998 starting problems HELP
Nov 19, 2007 (10:03 am)
My 1998 sunfire convertible INTERMITTENTLY won't start. It doesn't crank at all, all electric stuff works fine, lights, windows everything, appears to have lots of power, just the engine wont even try to turn over.. so far I've replaced the fuel pump ($650) and had the ignition recall performed for free by my local dealer.. the fuel pump CAN be heard humming when the key is turned, but won't start, I've pounded on the gas tank with a hammer and got it to start after about 30 tries.. not sure if it's related to the pounding or just coincidence... PLEASE HELP
#96 of 306 2004 Sunfire wont start AGAIN
Nov 24, 2007 (11:34 am)
Ok this is a 2004 sunfire it starts then stalls, then just simply wont start at all, weve had it towed probably 5 times now the fuel filter, fuel pump and battery have been replaced. Works for a day or 2 but then wont start again.......Help since its out of warranty has about 75k miles on it and i really cant afford to take it to a dealership.....I will never buy another pontiac again
#97 of 306 re: 2004 Sunfire wont start AGAIN
Nov 24, 2007 (12:16 pm)
I had same problem with my '04 Sunfire. We changed the fuel pump 3 times before the problem was fixed. The dealer installed the first one, then could not get it to mess up on them, so they refused to try another one. I had to take it to a non-franchise auto repair shop and it messed up for them. They installed the 2nd fuel pump, which was defective, and then the 3rd one was the charm. Good luck.