I just bought a 2000 pontiac bonneville. drove from the car lot appr. 20 miles within 7 miles of where i live and the car just died going down the road. would not start back, would turn over good but

SOURCE: 1997 Bonneville lost power going up a long hill

The only thing that comes to mind is the catalytic convertor in the exhaust system.It can become restricted,reducing flow in the exhaust system,which also reduces engine power.These convertors run at fairly hot temperatures,and the extreme heat and conditions aggravated,or overloaded it.It's not very expensive to have it checked at a reputable muffler shop.I have seen extreme instances where this caused parts of the exhaust system to turn red,glowing hot.

pat murray

• 293 Answers
• Posted on Oct 17, 2008

SOURCE: I have an electrical problem.

well the window and seat problem is probably a broken wire in the harness between the door and body open rubber boot and inspect and repair
the fuel i would start by checking for power at connector back by fuel tank you should have power with key on for about 10 seconds then turn key off and wait for a few seconds and try if you have power it is probably the fuel pump

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.

SOURCE: 1997 Bonneville stalls and dies on the road

Shell has had issues with contaminated fuel in the past cant recall what it was but it actually damaged the fuel pump. I hope thats not the issue here can get costly in some cases fuel pumps on GM are a whole assembly. DOes the gas gauge still read properly? This was a big tell with the contamination last time. Gauge would read empty even when full.

SOURCE: 2000 pontiac grand prix starts and dies

check the pcv valve and or the mass air flow