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Run out of gas with 6 gals in tank, twice! Fuel pump?

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Old 09-15-2011, 03:30 PM
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Originally Posted by AKlowriderZ71
I'd go with the OEM module in your case. GM part number is 88966962, Delco number is MU1378.
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Thanks Roger!
Old 09-16-2011, 10:08 PM
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Ordered the pump and assembly today, bout $230 Not looking forward to dropping the tank, but definitely looking for to not having to worry about being stranded somewhere.
Old 09-19-2011, 10:55 PM
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It's purdy. Results to come, probably including choice words from dropping the tank.

Old 09-19-2011, 11:05 PM
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That looks a lot different than the non flexfuel buckets. Swapping it isn't bad. I put the truck up on jaclstands, then put a floorjack under the tank with a 2x6, bust the strap bolts loose and lower it down til I can unhook the lines and wires then drop it the rest of the way down. Make sure you spray off the top of the tank before busting the retainer ring off, a lot of gunk builds up there and can fall in the tank when you pull out the sending unit.
Old 09-19-2011, 11:29 PM
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My black z71 tahoe did the exact same thing.. I could get out and kick the tank and it would fire right back up..
Old 09-26-2011, 03:29 PM
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Swapped it in this weekend. My gas gauge finally reads Full! It has never gone above 3/4 tank in the 6 years I have owned it! And ran it down to about 4 gallons (I know, it isn't good for the pump, but once won't kill it) just to make sure the "running out of gas with gas in the tank" problem was fixed, and happy to report it was still cruising around with 4 gals in there.

Thanks for the help guys
Old 09-26-2011, 03:45 PM
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Good news! So, was it as bad as you thought it would be(removing the tank)?
Old 09-26-2011, 03:50 PM
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Friend and I used a lift and pneumatic tools at his shop, so no
Old 06-13-2012, 11:16 PM
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Same symptom back again, happened twice Luckily the "hitting the bottom of the fuel tank with a blunt object" trick worked both times to get it started.

Looks like AC Delco has a 12 month warranty on their fuel pumps though
Old 06-14-2012, 12:21 AM
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that sucks man.


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