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Old 12-24-2010, 08:21 PM
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Default 2007 GMC 2500HD Fuel Tank Capacity?

What's the standard fuel tank capacity for these trucks. From what I've read it's around 34 gallons.

I just bought one and filled it up for the first time the other day. Fuel gage was reading as close to empty as you can possibly get but it only took 17 gallons to fill it back to complety full. I know that can not be right. Any ideas?
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Old 12-24-2010, 08:30 PM
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26 gals
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Old 12-24-2010, 08:37 PM
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My "low fuel" light comes on when there is 6 gals left in the tank..... go figure, guess they don't want you walking.
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Old 12-24-2010, 08:46 PM
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The 2008 F250 6.4l I had would go to Zero miles to empty and I would still have 6 or so gallons left.
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Old 12-24-2010, 10:27 PM
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26 gallons with the 6'6" bed and 34 gallons with the 8' bed
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Old 12-25-2010, 02:53 AM
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My "low fuel" light comes on when there is 6 gals left in the tank..... go figure, guess they don't want you walking.

ever run a diesel out of fuel and you will understand...re priming on the side of the road is no fun...
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Old 12-25-2010, 06:48 AM
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That was on my diesel. Never happened in the truck but did happen on the boat.... I'd rather that a beating than go through that again.
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Old 12-25-2010, 07:39 AM
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mine has the 6 1/2 bed so I guess I've got the 26 gal tank. Thanks for the feed back.
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Old 12-25-2010, 09:03 AM
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re-priming a Duramax or a newer Cummins or Ford with the common rail injector system isn't near as hard as a conventional, mechanical injection system. Probably could do it in a few minutes w/o even getting your hands dirty.

Nauti-Hooker, it's not exactly 26 gallons. I've actually pumped 26.5 gallons in mine (once) and had not run out of diesel yet. My low fuel light comes on at about 23 gallons.
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Old 12-25-2010, 09:51 AM
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26 gallons with the 6'6" bed and 34 gallons with the 8' bed
The stock tanks aren't large enough, IMHO. Luckily, the guy I bought my 07' crew cab dually installed an aftermarket 50gal tank. Now I can almost drive longer than my bladder can hold out when I'm towing the boat on a trip.
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Old 12-25-2010, 09:56 AM
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Im with kmo on the stock tank being to small. I have an 03 Duramax if the low fuel light comes on you better be beside the pump or your walking. Found out the hard way one time now when i get to 1/4 tank im adding fuel. At 1/4 tank i can add 24-25 gals go figure on a 26 gal tank. That guage can and will lie on mine anyway. Other than that love the truck about 110000 miles on it.
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Old 12-25-2010, 10:49 AM
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The 2011's have larger fuel tanks. I think the 6' bed now has 34-36 gallons. I thought seriously about adding capacity to mine at one time. Just too much money. Far as I could tell it was about $800 to replace factory tank with a 50 gal.
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Old 12-25-2010, 10:50 AM
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Would you be interested in selling?
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Old 12-25-2010, 12:13 PM
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Would you be interested in selling?
are you looking for Durmax-- Have 04.5 (LLY) GMC SLT 134K ,extended cab w cap-- Silver ,New Bridgestone tires going to purchase new F150 in future
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Old 12-25-2010, 12:19 PM
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Oh those pesky GM fuel gauges. My diesel Sub can run out of fuel with a quarter a tank showing. 42 gallon tank in my 1995 Suburban.
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Old 12-25-2010, 06:28 PM
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guy harvey,

who are you asking?
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Old 12-25-2010, 08:22 PM
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26 gal on my '07 2500HD DMax ... but needle was down all the way (light not on) and it took 20 gal to fill ... wish it held more, but otherwise that truck is the balls ... btw, my Michelin LTX M/S LT 245/75/r16 tires are about done (came with, 166k on truck), was gonna get a new set of same unless there are other tire suggestions (live in NE, have a long 1 1/2 mi dirt road driveway, mostly everyday use, occasional towing) ... thanks for the input - this site has been a goldmine of knowledge
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Old 12-25-2010, 11:35 PM
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I don't have the same problems with my fuel gauge that y'all seem to have. I've had 3 Chevy trucks, '92. '98 and '02. All had 26 gallon tanks and the fuel gauges were all almost identical in the way they worked. After putting over 750,000 mle on those 3 trucks, I can predict how much gas it'll take within half a gallon when I pull up to the pump by looking at the gauge. Also, all 3 went right at 400 miles of city driving on about 23 gallons. Wierd thing is that I could always go 300 miles on the first half tank and 100 miles on the second half! I reset the trip every time I fill up and use that as much as I do the fuel gauge.

My wife said her '98 GMC was EMPTY when it said empty.
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Old 12-26-2010, 09:04 AM
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You nauti hooker..
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Old 12-26-2010, 10:39 AM
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Guy Harvey,

I've got a boat that I'd love to sell you, but I'm holding on to the truck for a while. I just got it a week or so ago.
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