Is my fuel gauge horribly inaccurate or did my tank shrink?

[pwtr02ss]

It is when the damn error results in an hour less driving time on the highway. Plus the fact that we don't know where E even is on these trucks now. When the distance between convenient gas stations on a 1000 mile trip is 50+ miles, the lost fuel capacity can be the difference between making the next exit or calling Onstar.
But the biggest pain in my mind is the fact that GM tells us we have a 26 gal capacity but nobody has any idea what the true capacity is, so everyone stops early to avoid problems. That's a complete and total lack of quality control.

Oh, and for 40 years and close to 900,000 miles I've run my cars down to E and have never experienced a fuel pump failure. As long as a pump has fuel in it, it's getting cooled properly. That used to be true in the days of the old mechanical pumps bolted to the side of an engine block, but today the only risk is running the tank dry and no fuel in the pump.

if your DIC shows 12 mpg and you have 4 gallons of gas left I think the light is suppose to come on at around 50 miles correct? I have ran mine down to where the range is "low" and gauge is flat on E and like you my truck only held 29 gallons (suppose to be 31). I'm not saying its perfect by no means but IMO I'd rather have it say I'm out of fuel and have 2 gallons as the other way around. All the things to ***** about with these truck the gas gauge is not one of them for me

 

[ryanls1]

My problem is the exact opposite. When my tank gets to 1/4 it's basically empty. My DIC says I have 50 miles till empty and it runs out of gas. So now I fill up whenever my DIC says 70 till empty just to make sure I don't run out. I've had the truck for 2 years now and during the first year everything was fine. I could run it down and the nav would show gas stations and light would come on and all that but now it dies at a little past 1/4 tank. Very annoying since my fiancé drives the truck from time to time and doesn't understand the gauge is wrong and has run it dry before.

 

[Ls1leadfoot]

haha
i park on an incline and every time i get in and start the truck, im like HELL YA i got 1/4 tank more than yesterday lol

then when i get to the stop sign at the end of the subdivision, im like FML
back to reality lol

hopefully that doesnt get me stranded one day

 

[TheFuzz]

Hello TheFuzz,

Congrats on buying your 2007 Tahoe! I hope you are enjoying driving the vehicle around. Be sure to keep an eye out for any inaccuracy after your part replacement, and reach out to us if other concerns arise.

Regards,

Laura M.
GM Customer Service

Thank you Laura. I ordered the updated replacement kit outlined in the TSB this evening, it should arrive on Friday. I'll be in touch if replacing the solenoid doesn't solve the problem.

 

[GM Customer Service]

Thank you Laura. I ordered the updated replacement kit outlined in the TSB this evening, it should arrive on Friday. I'll be in touch if replacing the solenoid doesn't solve the problem.

You are welcome TheFuzz. You can reach out to us via private message if needed, that will be the easiest way to interact.

Sincerely,

Laura M.
GM Customer Service