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2001 GMC Sonoma fuel pump

Tiny
MONCHIE12
  • MEMBER
  • 2001 GMC SONOMA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 196 MILES
Hi my question is. I have been hereing several things. I would like to know for sure. Te other day I was out runing around and my Truch markes that it has a1/4 of a tank. Well it must have not been so. I was left stranded. I got more gas in truck. Went to start it and it would not start. I Tried till I killed the battery. To make a long story short. I got a new battery in truck and tried to start it again. It would crank but not start. I was informed that my truck might have some kind of a switch to reset the pump. Is this true. I would like to know if this is so I will do that and chec again. If not I will replace the pump. Please get back with me asap. Thank you very much.
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Wednesday, September 1st, 2010 AT 8:25 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
It does not have a switch. That is called an Inertia switch and only used on Ford products. You need to use a fuel pressure gauge and verify power arriving at the pump during the first 2 seconds or during cranking.
This truck requires a minimum of 55 PSI to even run.
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Wednesday, September 1st, 2010 AT 8:51 PM

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