bonneville stalls, power windows and fuel pump not working when it stalls

1999 PONTIAC BONNEVILLE

170,000 MILES

HILMAN

MEMBER
10 POSTS

this is an intermittent problem. car runs fine for a day or two then stalls. noticed pwr windows and fuel pump don't work when this happens. will start later with no problems. checked grounds on driver side floor in accordance with another individual who wrote in but the grounds checked good. in fact i disconnected the main ground connected to body and couldn't get the car to stall.

Mar 31, 2012 at 8:15 PM

HMAC300

✓ASE Certified Mechanic
48,601 POSTS

thefuel pump has a control module in thetrunk and that may be giving you the problem but see if there is a ground there that may have been bumped loose. Also the ground for the fuelpupmp is in the left kick panel but both problems may be the result of a bad or poor connecting ignition switch.

Mar 31, 2012 at 8:56 PM

HILMAN

MEMBER
10 POSTS

Thanks for the response - already changed out the ignition switch and didn't fix the problem. where exactly is the control module in the trunk?

Mar 31, 2012 at 10:04 PM

HMAC300

✓ASE Certified Mechanic
48,601 POSTS

if you have one it will be on the left front fo the trunk. it is for VIN1 vehicles.

Mar 31, 2012 at 10:30 PM

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