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Pontiac Bonneville Starting/Stallling/Ignition Problems

233 messages,  Last post on Mar 10, 2013 at 5:56 PM

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What is this discussion about? Pontiac Bonneville, Auto Repair, Sedan

Messages Page 24 of 24

#226 of 233 Re: 1995 pontiac bonneville se [wolfman2020] by imidazol97

Sep 10, 2012 (6:56 am)

Replying to: wolfman2020 (Sep 10, 2012 3:00 am)
> they put a code reader on it and that was the answer and the fix
 
I thought the CPS did not set any kind of code? That's what makes it difficult to diagnose using circumstantial evidence as to its being bad or not.

#227 of 233 Re: 1995 pontiac bonneville se [casoriagag] by imidazol97

Sep 10, 2012 (6:59 am)

Replying to: casoriagag (Sep 09, 2012 7:10 pm)
>--car shuts off even on the highway at 60 mph. Gives me these security lights and then drops the gas light as if I have no gas, shows it to empty and then the call stalls,
 
I would check the ignition switch carefully. I do not know anything about the physical arrangement of the parts on your car, but that ignition switch can have different contacts for different services. As it heats while the car's running, individual contacts can lose connection while others stay in contact. Heat, vibration, burning, can lead to the bad contact while running.

#228 of 233 2000 pontiac bonneville fuel pressure by yamiracer

Dec 28, 2012 (5:10 pm)

00 bonneville that will start and run but hit throttle and dies. Have replaced fuel filter, fuel pressure regulator, thought maybe cat was plugged but eliminated that and still runs like crap. Once it warms up, it will just start up and shut off. Will not hold fuel pressure with key on not running, once running has pressure, not sure how much dont have guage. Have checked all vacuum lines and cannot find any leaks. When I first start it up I can drive it down road and seems to go ok but if you kick it down seems to not have a lot of power or cuts out funny. Have been digging around a bunch and am stumpped. Any help or ideas would be appreciated. thanks

#229 of 233 Re: Car died [tamwa] by 96bonnimom

Jan 08, 2013 (1:42 pm)

Replying to: tamwa (Nov 25, 2006 3:06 pm)
hello tamwa, did you get your problem resolved? If you did could you post on here what you did to get it going again.
 I am having the same kind of problems with my '96 bonneville ssei supercharger.

#230 of 233 Re: 2000 pontiac bonneville fuel pressure [yamiracer] by imidazol97

Jan 08, 2013 (3:58 pm)

Replying to: yamiracer (Dec 28, 2012 5:10 pm)
You need to verify your fuel pressure. You can get loaner pressure gauges at certain auto parts stores in this state of Ohio. Don't know where you live.
 
The pressure should be tested with the engine off and the key on. The pump will run a couple seconds and then shut off. The pressure should hold unless there's a bleed down from a leak or the fuel pump. Then the pressure should be checked with the engine running at idle, and then the pressure noted when the engine is accelerated causing the vacuum to reduce which lets the fuel pressure regulator up the pressure.
 
Second choice would be the MAF sensor may need cleaning.

#231 of 233 Re: 1994 bonneville shuts down [denny115] by marceau

Mar 07, 2013 (10:24 am)

Replying to: denny115 (Aug 04, 2009 7:51 pm)
ive heard a lot of horror stories about it being a feul pressure regulator and if not fixed can be very bad for both the car and you .it can pool gas in the intake and explode the intake off.there about 60 bucks

#232 of 233 96 bon by marceau

Mar 07, 2013 (10:25 am)

also there is a ground under the kick plate on the driver side that gets corroded and can cause all kinds of fits

#233 of 233 Re: 2000 pontiac bonneville fuel pressure [yamiracer] by scscars

Mar 10, 2013 (5:56 pm)

Replying to: yamiracer (Dec 28, 2012 5:10 pm)
I had this problem late last year. It is related to the MAF sensor. Worn motormounts created stresses that "tugged" on the MAF sensor and caused it to malfunction. Replacement of one of the motormounts helped, along with a MAF sensor cleaning. I still need to replace the second motormount and probably should replace the MAF sensor as well, even though it is only about three years old. So far, I've spent about $350 on this problem. I have a 2002 Bonneville with a non-supercharged 3.8 Liter V6. Hope this helps.

Messages Page 24 of 24

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