20 Most Recent 2000 Pontiac Bonneville - Page 9 Questions & Answers

may be an electrical problem.__________________om580 scanner

The pcm or power control module is located on the drivers side of the engine.
The pcm relay is # 4 on the power distribution box in the engine compartment.
Also in the power distribution box in location # 6 is a 10amp mini-fuse for the
power train control. good luck!

Possible blown head gasket? Pressure coming from the engine combustion. Remove spark plugs and check for coolant coming out of the cylinders. Hope this helps!

Have you checked your battery? Does the dashboard light up?Check your fuses first, then check your battery. Check that the battery is connected properly. A loosely-connected battery is usually the cause of a car not cranking at all.

check the freon charge

Its a signal wire splice that is under your driver seat carpet.( 4 brown wires)

The P0440 means "Evaporative Emission Control System"----------------mpps software download

Teddydear200, I was running on 4 of 6 coils, the driving and running of the car was ridiculous, I thought my baby was dying. The mechanic suggested the ignition control module, I replaced it and am back to getting up to 90 mph easily and the car runs smoother. Since you've done all that other stuff, give the ignition control module a try as the person above me suggested. I think that really is your problem. - J

Take it to a body shop.

White smoke sweet smell. Sounds like Antifreeze evaporating..check your radiator and hoses, as well as your heater core. It is hard to fully answer a question without a hands on inspection, kind of like me asking you over the phone if you like my new tie I am wearing..

could be the switch or the blower motor for the side not working. it could also be a fuse or relay. I would check them first as they are the cheaper to replace

im almcst a 100% sure it wil be your shocks or struts that went bad try to push down on your car hard and if it still feels like the way it feels when you drive it will be your shoch or stuts which ever you my have for your car If you need further help, reach me via phone at https://www.6ya.com/expert/bryan_972744e20e2f7260

I assume that your concern is about trying to get cold air from both sides (not warm).
It could be the actuator or blending doors, but the most common answer is that your freon is low. I have a 2005 Bonneville and had the same problem. The good news is that you probably only need one can of freon and the auto parts stores have kits for the do-it-yourselfer. If you haven't done it before, I highly recommend going to someone that has done it before.
The bad news is that you have a slow leak, and it will not fix itself. You will probably have to pay a professional big bucks to eventually find and repair the leak.
I've topped my freon off a couple times, and suspect the leak is down by the compressor. I'm currently sweating it out until I can get it fixed.

MIGHT HAVE A PROBLEM WITH WINDOW REGULATOR OR SWITCH

Check this on 1999 Pontiac Bonneville Car Stereo Wiring Diagram, could help...Car Radio Battery Constant 12v+ Wire: OrangeCar Radio Accessory Switched 12v+ Wire: YellowCar Radio Ground Wire: BlackCar Radio Illumination Wire: GrayCar Stereo Dimmer Wire: BrownCar Stereo Antenna Trigger Wire: PinkCar Stereo Amp Trigger Wire: N/ACar Stereo Amplifier Location: N/ACar Audio Front Speakers Size: 4" x 6" SpeakersCar Audio Front Speakers Location: DoorsLeft Front Speaker Positive Wire (+): TanLeft Front Speaker Negative Wire (-): GrayRight Front Speaker Positive Wire (+): Light GreenRight Front Speaker Negative Wire (-): Dark GreenCar Audio Rear Speakers Size: 6" x 9" SpeakersCar Audio Rear Speakers Location: Rear DeckLeft Rear Speaker Positive Wire (+): BrownLeft Rear Speaker Negative Wire (-): YellowRight Rear Speaker Positive Wire (+): Dark BlueRight Rear Speaker Negative Wire (-): Light BlueHope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.Thank you for using FixYa, have a nice day.

i think your starter moter has gone or your battery is week also your spark plugs might need replacing check all these things