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2001 Pontiac Bonneville starting issue

Tiny
THUMPER7
  • MEMBER
  • 2001 PONTIAC BONNEVILLE
  • 3.8L
  • 6 CYL
  • AUTOMATIC
  • 162,000 MILES
2001 Pontiac Bonneville sle. Starts up on first start of the day. Then after driving I go to start again and it starts then stalls in a few seconds after turning key.I was getting a code 404. I replaced erg valve and maf sensor. Also Replaced fuel filter a few months ago. Every once in awhile I get a message saying check gas cap but I have put new one on. Im Not getting any codes. Starts just fine on the first start of day or long period of sitting ( several hours)any thoughts to this.

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Monday, February 23rd, 2015 AT 8:38 PM

4 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Are you getting any security indicators on or flashing when this happens?
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Tuesday, February 24th, 2015 AT 2:18 AM
Tiny
THUMPER7
  • MEMBER
  • 3 POSTS
No when I turn the key all lights and functions in instrument panel come on. The car starts but dies within a few seconds.. The car starts right up on the firts start of the day ie: in the morning after sitting all night. With no hesitation.. Or if it has sat for several hours.
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Tuesday, February 24th, 2015 AT 7:57 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Make sure there are no security indicators anywhere because a security lockout would act just like that.

If you eliminate security then you have to test fuel pressure when this is happening.
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Tuesday, February 24th, 2015 AT 4:31 PM
Tiny
THUMPER7
  • MEMBER
  • 3 POSTS
Not getting any security code all instruments are normal when car starts up.
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Tuesday, February 24th, 2015 AT 5:26 PM

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