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Fuel pump voltage [message #287270]

Mon, 14 September 2015 16:29

petemosss

Messages: 221
Registered: August 2008
Location: Jacksonville, Florida

Karma:

Senior Member

Sorry for the non gmc post but there is more brain power here than anywhere. The rednecks on the truck forums drive me batshit. My 1994 c2500 5.7 TBI gets no fuel. Pump not running. The pump relay connector at firewall and connector at tank show 12v for about 2-3 seconds before dropping to 8-9 volts while cranking. Is this normal or do I have an ecm problem? Already tried new relay same result. Will a pump run on 8-9 volts?
Thanks folks!

Pete 74 Canyon Lands 26' "Emery"

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[Message index]

		Fuel pump voltage By: petemosss on Mon, 14 September 2015 16:29
		Re: Fuel pump voltage By: tphipps on Mon, 14 September 2015 17:57
		Re: [GMCnet] Fuel pump voltage By: k2gkk on Mon, 14 September 2015 17:58
		Re: Fuel pump voltage By: C Boyd on Mon, 14 September 2015 18:20
		Re: Fuel pump voltage By: Ken Burton on Tue, 15 September 2015 04:30
		Re: Fuel pump voltage By: petemosss on Tue, 15 September 2015 06:26
		Re: Fuel pump voltage By: JohnL455 on Tue, 15 September 2015 09:16
		Re: Fuel pump voltage By: petemosss on Thu, 24 September 2015 08:17
		Re: Fuel pump voltage By: Bullitthead on Thu, 24 September 2015 14:53
		Re: Fuel pump voltage By: hal kading on Thu, 24 September 2015 15:34
		Re: [GMCnet] Fuel pump voltage By: Guy Lopes on Thu, 24 September 2015 15:54
		Re: Fuel pump voltage By: Bob de Kruyff on Thu, 24 September 2015 16:06
		Re: Fuel pump voltage By: petemosss on Thu, 24 September 2015 19:23
		Re: Fuel pump voltage By: JohnL455 on Fri, 25 September 2015 10:20

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