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-   -   Run out of gas with 6 gals in tank, twice! Fuel pump? (https://www.performancetrucks.net/forums/gmt-800-older-gm-general-discussion-130/run-out-gas-6-gals-tank-twice-fuel-pump-488759/)

TX Tahoe Z71 09-15-2011 03:30 PM


Originally Posted by AKlowriderZ71 (Post 4773480)
I'd go with the OEM module in your case. GM part number is 88966962, Delco number is MU1378.

New favorite person ;)

Thanks Roger!

TX Tahoe Z71 09-16-2011 10:08 PM

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.

TX Tahoe Z71 09-19-2011 10:55 PM

It's purdy. Results to come, probably including choice words from dropping the tank.

http://i220.photobucket.com/albums/d...5/2aea18a2.jpg

1slow01Z71 09-19-2011 11:05 PM

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.

Bumpers 09-19-2011 11:29 PM

My black z71 tahoe did the exact same thing.. I could get out and kick the tank and it would fire right back up..

TX Tahoe Z71 09-26-2011 03:29 PM

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 :cheers:

AKlowriderZ71 09-26-2011 03:45 PM

Good news! So, was it as bad as you thought it would be(removing the tank)?

TX Tahoe Z71 09-26-2011 03:50 PM

Friend and I used a lift and pneumatic tools at his shop, so no :jest:

TX Tahoe Z71 06-13-2012 11:16 PM

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

CCrowell2 06-14-2012 12:21 AM

that sucks man.


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