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Starts but dies immediately

Tiny
LEISAWALL
  • MEMBER
  • 1995 GMC JIMMY
My truck starts but dies immediately. I replaced the fuel filter and made sure there is gas in it. I hooked an OBD II up to it and no codes come up. I can hear the fuel pump working. Any ideas?

i left work for lunch put gas in my truck went back to work. Came out of work approx 30 mins later and truck starts but dies immediately. I replaced fuel filter and that did not help. I hooked an OBD II to the vehicle and no codes came back.
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Monday, October 31st, 2011 AT 4:56 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Are you able to keep it running by hitting the throttle? Have you checked fuel pump pressure?
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Monday, October 31st, 2011 AT 5:56 PM
Tiny
LEISAWALL
  • MEMBER
  • 2 POSTS
No I will not stay running when I hit throttle. No I hasve not checked the pressure, i'm not sure how to do that. Is it possible the sending unit is not working properly? I can hear the fuel pump running
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Monday, October 31st, 2011 AT 9:40 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
IT must be getting spark. Therefore, we need to check fuel pressure. It isn't hard, but you will need a fuel pressure gauge. Most parts stores will lend them to you. When you get it, go to our homepage under the DIY section for detailed directions plus a video to show you how to check it. Let me know what you find.
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Tuesday, November 1st, 2011 AT 2:01 AM

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