gas level

[cubanlorenzo]

my gas guage drive me crazy, i go up a hill it raises more than a 1/4 of a tank. i got down a hill it drops more than 1/4 of a tank. i ride on level ground, it reads normally... this normal for blazers??

[drewgibs]

normal for mine, also when I fill it up it goes about 1/4 past the full mark...kinda annoying

[s10blazerman4x4]

i know it says its a 20 gallon tank but heck i can put 22-25 gallons in mine and it reads a 1/4 past full and then if you step on the gas it drops like to half a tank but then comes back up idk kinda stupid and annoying

[wolfox]

I hear that this is common across nearly all of GM's trucks. A neighbor of mine with a Chevy 1500, 2003 pickup says his gague is squirrely all of the time. He as well as myself firmly believe to never let your truck drop past 1/4 tank. It's not good for the pump. I once made the mistake of parking my '95 Blazer on a nose-down incline with a 1/4 tank of fuel....

That truck would not start until I hiked back with a 5 gallon can of gas to toss in the tank.

[BlazerLT]

Completely normal.

[chcknugget]

My 96 can only accept 16-17 gallons of fuel in my tank at the pump. Do some later years have larger tanks?

[s10blazerman4x4]

yeah but in my 91 when it gets to the 1/4 tank mark it either goes real quick or not quick at all go figure usually once a month that lucas fuel treatment goes in ill get 18 mpg and thats darn good when ur gettin 13-14 before use

[BlazerLT]

It is probably because there is still 3 gallons still in the tank even when the gauge reads empty.

This is often the case so people fill up before the tank is bone dry.

No one should be running their tank till empty anyway seeing it puts a lot of stress on the fuel pump and can lead to condensation and rust forming on the exposed inside portion of the tank.

Just a info tidbit for you.

[chcknugget]

I've read that 4 door models came with 19 gallon tanks, and 2 door models came with 20 gallon tanks.

[BlazerLT]

no.

It varies from year to year.

[wolfox]

For my model year (1995) the 2 door carries a 20 gallon tank, the 4 door (Like mine) carries a 19 gallon tank. I guess they shaved one corner off of it to allow an entry-way for the rear passenger doors.

[drewgibs]

anyone know of a kit to install an aux fuel tank? just something small with a 5 gallon reserve would be really neat

[wolfox]

Anything can be had or built for a price, I will not say it is impossible either...

But have you actually gotten a look under your truck with all of the skidplates off? Where would you *PUT* the auxilary tank?

[vernors4]

So I guess after reading some of the posts, it's normal for me to get 15 mpg on my 2002 Blazer Extreme?

[BlazerLT]

In the winter when it is cold it would be normal.

Done a tuneup lately?