Question about 1998 Pontiac Bonneville
It will be running great going down the road and have to stop at a red light and the car will idle down and stall out what could cause that to happen?
Sounds liek your crankshaft postion sensor but to be sure i would replace spark plugs and wires and change the oil if you havent recenly and check your air filter if its to dirty the car will stall
Posted on Jan 14, 2013
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Posted on Jan 02, 2017
SOURCE: 1995 pontiac bonneville stalls
I just went through lots of troubleshooting and expense on my 1996. Whenever I would lift my foot off the accelerator and was below about 30 mph, the rpm's would starts jumping around and sometimes it would stall. If I gave it a little gas (accelerator), I could sometimes keep it running. It also backfired once in a while. Starts right back up. Also, if I let it idle while in part, it would die after 1-2 minutes.
I ended up finding a hole in the fuel regulator. About a ~$70 part if you get an AC Delco, but very simple to change.
Posted on Dec 24, 2008
the code you have is for a misfire on #3 cylinder. (im sure you knew this right?). the crankshaft position sensor will not cause one individual cylinder to misfire. what i typicaly do in this scenario is switch the ignition wire off of the guilty cylinder onto a known good firing cylinder and see if misfire moves to the other cylinder. i repeat this process by switching the spark plug and finaly the fuel injector. a compression check may be in order as well (but not a likely cause) unless you have access to a tech 2 (gms diag computer) you will need to clear this code after each component is moved and see if you get a new code ie :p0304 if switched to #4 cylinder..other wise if you do have access to a computer that has a misfire chart in its features you can quickly identify the guilty component. as i side note the ignition coil may also be faulty, but i believe your vehicle has a 3.8liter meaning that it has a coil pack....switch the others i listed and see ow you make out....good luck!
Posted on Jun 11, 2009
SOURCE: Car stalls at idle
the lock up converter is staying engaged when you stop have it scanned for trans codes may need lock up selinoid (tcc) or torque converter changed try putting it in neutral before you stop if it stays running this is probibally your problem
Posted on Jul 15, 2009
SOURCE: 2000 pontiac sunfire misfire
Solution is in the wiring harness....these cars are noted for this as it runs under the rad exposing it to the elements and corrosion. You will need a dealer with the proper scanner to read the code & find the wire.
Posted on Dec 31, 2009
I have a 2000 Bonneville - I had a problem with the car stalling out - then it did not want to start back up. (When it did it would idle up and down and then die) I changed out the mass air flow sensor - now I have not had a problem. Good luck with it.
Posted on Mar 17, 2010
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