Low Fuel Warning Indicator - Chevy and GMC Duramax Diesel Forum
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Old 12-20-2010, 11:41 AM   eBay Motors  #1 (permalink)
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Low Fuel Warning Indicator

I have a 2008 Silverado Duramax. It has the short bed so the fuel tank is the 26 gallon version. When I first got the truck, the gauge would read empty and the low fuel warning would display after using appx. 19 - 20 gallons of fuel. That has gradually lowered to the point where it now reads empty and the warning message appears after using appx. 16 gallons of fuel. It's more of an irritant than anything. In other words, it's not something I want to spend a pile of money getting corrected. Is there any kind of a quick fix or re-calibration that can be done without having to drop the tank in order to replace the sending unit?

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Old 12-20-2010, 11:54 AM   eBay Motors  #2 (permalink)
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subscribe..... My fuel gauge has a fricken mind of it's own. If I start truck with remote, the gauge always goes to empty and fuel warnings come on. It also does the same thing if it idles for more than 10 mins, but after going to empty it comes back to level real slow. I just use the dic fuel burn to determine level.
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Old 12-31-2010, 03:19 PM   eBay Motors  #3 (permalink)
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I get a low fuel light at about 20 gal in the tank. It has always been like that.

I also use the odometer and refuel every 800 to 900 miles.

I am running a stock 26 gal tank w/a 50 Gal Transfer Flow in the bed.

I believe that the fuel light is just a reminder, just like the gauge is. Figure out the fuel burn and just let all the gimmicks offer advise. I also only run on the top half of the fuel when running around town.
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Old 12-31-2010, 03:23 PM   eBay Motors  #4 (permalink)
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Running out of diesel in these trucks is a bigger deal then running out of gas in your Civic. For that reason they give you a light with 6 gallons in the tank from the factory. That is normal.

As for the other issue, someone with more knowledge will chime in shortly.
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Old 12-31-2010, 03:42 PM   eBay Motors  #5 (permalink)
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its an 08... Bring it to the dealershit to be checked out.
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Old 01-17-2011, 07:07 PM   eBay Motors  #6 (permalink)
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so after burning 19.5 gallons, it showed a range of approximately 30 miles remaining and the guage was getting pretty close to empty...

I still have 6 gallons left??

I thought it was a 26 gallon tank but decided to be safe and top off...
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Old 01-17-2011, 07:32 PM   eBay Motors  #7 (permalink)
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my 08 does the same thing. At about 20 to 21 gallons she shows empty, and the warning comes on
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Old 01-17-2011, 07:37 PM   eBay Motors  #8 (permalink)
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so after burning 19.5 gallons, it showed a range of approximately 30 miles remaining and the guage was getting pretty close to empty...

I still have 6 gallons left??

I thought it was a 26 gallon tank but decided to be safe and top off...
Oh and the low level warning did not come on yet.. I guess it works...
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Old 01-17-2011, 07:38 PM   eBay Motors  #9 (permalink)
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My LML will use 32 of 36 galls and then "low" light comes on. Seems to be pretty accurate so far but I have yet to run out and "test" it's accuracy...

The priming method (if ran out of fuel) in manual seems pretty simple. Is that true or is there a headache procedure needed? I ran out in my ford diesel van once and it was no big deal. Just took a few miles of rough running until it was fine again.
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Old 01-17-2011, 08:56 PM   eBay Motors  #10 (permalink)
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My LML will use 32 of 36 galls and then "low" light comes on. Seems to be pretty accurate so far but I have yet to run out and "test" it's accuracy...

The priming method (if ran out of fuel) in manual seems pretty simple. Is that true or is there a headache procedure needed? I ran out in my ford diesel van once and it was no big deal. Just took a few miles of rough running until it was fine again.
If you run out in a civic you can pour fuel in the tank and try to start it. Eventually it'll crank and start.

A diesel requires more cranking amps to turn it over and you have to prime the fuel where you don't need to in a Civic.
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Thank you Rob Coddens (Idaho Rob), Dustin @ ATP, Scott @ SDP, Kory Willis, and Mike L. for all of your help!

05 LLY CCSB 4wd - Mods coming (Truck Love from ATP Trucks and Copperhead Diesel expected soon)
SOLD: 05 LLY, 05 LLY, 09 LMM, 02 LB7

Build Threads : 2005 Chevy Silverado | 1978 Ford Bronco (Sister Site)
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