Question about 2000 Chevrolet Blazer

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2000 chevy blazer 4.3L(2 door)3 New fuel pumps and none will pump

I have replace the fuel pump 3 time in 2 days all with airtex part No E3954M (from Advance Auto ). I replace the pig tail and I am getting 12.7 v for 2-3 sec. on the gray and on the purple(fuel gauge) is a constant 5.4v. On the last pump before in installed it I hooked it for a hang test and turned the switch on and I could fill the power go to the pump but it would not turn. If anyone has any suggestion

2000 Chevy Blazer (S-10) 4x4 4.3l

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  • markch47mech Jun 28, 2009

    Here is a dumb question for you there is 2 grounds (static) on the gas tank and they are not hooked up.

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  • Master
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Bad ground?

Posted on Jun 28, 2009

  • Clint Smock
    Clint Smock Jun 28, 2009

    Have you checked the two black ground wires that run with the grey and purple. Also hook up the ground straps if you can but that won't cause the pump not to run.

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Posted on Jan 02, 2017

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Replaced fuel pump 4 times in 2001 chevy blazer the shop keeps saying the pumps are bad what could cause this


are they buying south of the border pumps from autozone or places like that or are they quality ones like NAPA?
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and the last would be if you are running on almost empty all the tome,the gas is what lubes the internal bushings

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The plug on the fuel pumps are common for being bad and burning up the pumps. But the new pump will come with a new plug.

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2000 Chevy blazer this is the 2nd brand new fuel pump I've replaced in 2 weeks,It runs a hour or two, Then sitting all night won't work in the morning.Same thing the first time . I've checked fuse ,...


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