GM Truck Club Forum banner

1 - 7 of 7 Posts

·
Registered
Joined
·
183 Posts
Discussion Starter #1
Okay, so the other day I was thinking about my fuels gauge and trying to figure out why my truck would read considerably more than half a tank of gas when the Fuel Consumed indicator on my DIC would read 13.0 gallons used (which would be exactly half a tank since I have a 26 gallon tank). I reset all my DIC stuff like fuel used, gas mileage, trip meter, and the hours every time I fill my truck up, and I do all of this before starting my truck up at the pump so nothing has been used.

The only thing I can think of is the leveling kit has got the front of the truck sitting up (level) with the back and that has got the sensor thrown off since it does not have the factory rake. I know when you park you truck on an upslope the fuel gauge reads more and it reads less when on a downslope.

So is the leveling kit the reason for the fuel gauge reading higher? The only reason I picked up on this is because when I drive I typically leave the DIC on Fuel Consumed so I just noticed that it was telling me 13 gallons was gone but the fuel gauge itself was reading way closer to the 3/4 line instead of 1/2 line.
 

·
Registered
Joined
·
7,291 Posts
My truck sits a little higher in the front, if my gauge reads 1/2 tank and I fill it, I'll put in 18-20 gallons (my tank is 26gallon) so according to the gauge I should put just 13 gallons in.
 

·
Registered
Joined
·
8,623 Posts
Reb, you can prove if your theory is correct, & fairly easily too. Just jack up the rear the exact same amount that the leveling kit lifted the front & check the fuel guage.
 

·
Registered
Joined
·
1,700 Posts
The top "half" of the tank has always been much bigger on Chevy pickups, every generation.
 

·
Registered
Joined
·
3,438 Posts
There is no car in the world that when the indicator reads half it is truely half. Its just the way it is, if it was actually at half then your indicator would NEVER go past FULL when you FILL it. I dont know why a car company cant get it right but thats the way it is.
 

·
Registered
Joined
·
1,218 Posts
The top "half" of the tank has always been much bigger on Chevy pickups, every generation.
Ya I can attest to that....the first half of tank of has seems to last awhile but once I hit that half mark out seems to disappear quickly!
 

·
Registered
Joined
·
183 Posts
Discussion Starter #7
I know the second half has always gone faster, it just seemed to have gotten worse after the front end was raised. I can say this, it takes less than 2 gallons to move the needle from 1/2 tank to 1/4 tank and then it slows down again.
 
1 - 7 of 7 Posts
Top