FUEL Guage problem
Thread Starter
Burning Brakes
Joined: Sep 2004
Posts: 1,084
Likes: 6
From: Boca Raton Florida
--from that thread a lot of good info
a guy lists the left sender part number $30 and how to fix yourself
Having it 'done' would be over $200 but then there's another sender.
another guy says he changed all sender units on warranty and it still kept happening
That tells me more of a 'sulfur in the gas problem' than the units themselves
the additives used that were successful are techron, redline, and BG 44K
It could be awhile as I try each
a guy lists the left sender part number $30 and how to fix yourself
Having it 'done' would be over $200 but then there's another sender.
another guy says he changed all sender units on warranty and it still kept happening
That tells me more of a 'sulfur in the gas problem' than the units themselves
the additives used that were successful are techron, redline, and BG 44K
It could be awhile as I try each
Le Mans Master
Joined: Oct 2002
Posts: 6,772
Likes: 1
From: Tampa FL
Originally Posted by lottavettes
--from that thread a lot of good info
a guy lists the left sender part number $30 and how to fix yourself
Having it 'done' would be over $200 but then there's another sender.
another guy says he changed all sender units on warranty and it still kept happening
That tells me more of a 'sulfur in the gas problem' than the units themselves
the additives used that were successful are techron, redline, and BG 44K
It could be awhile as I try each
a guy lists the left sender part number $30 and how to fix yourself
Having it 'done' would be over $200 but then there's another sender.
another guy says he changed all sender units on warranty and it still kept happening
That tells me more of a 'sulfur in the gas problem' than the units themselves
the additives used that were successful are techron, redline, and BG 44K
It could be awhile as I try each
Pro
Joined: Feb 2004
Posts: 575
Likes: 0
From: Akron Ohio
It's not just a problem in vettes. I've got a 99 GMC 4X4 pickup that's been doing it for over two years. Local garage says they've seen a ton of GM's that do the same thing. It's the sending unit alright, gets gummed up by the sulfur content in the gas. I let mine go for a long time and have been using Techron additive for three months now with every fillup and it seems to help it somewhat. The problem's always worse when the tank is newly filled and the sensor is immersed and then improves as the tank falls below 3/4.
Safety Car
Joined: Nov 2002
Posts: 4,394
Likes: 6
From: Melbourne FL
Try the fuel additives. Redline, Chevron Techron or some others have been successful at fixing this problem. And start using Chevron or Amoco gasolines.
If that doesn't work you will need to replace the sending units. There are two of them. I had both replaced before my gauge was fixed. It turned out to be the left side which is more of a pain to replace (from what I was told).
If that doesn't work you will need to replace the sending units. There are two of them. I had both replaced before my gauge was fixed. It turned out to be the left side which is more of a pain to replace (from what I was told).
Safety Car
Joined: Dec 2002
Posts: 4,010
Likes: 1
From: SE Idaho
St. Jude Contributor
Originally Posted by Great Dane
It's not just a problem in vettes.
Had the sender replaced in my Wrangler at 20K for the exact same problem; if I had not had a five gallon can of fuel attached to the rear bumper, I might still be in a desert in Utah. 
On the trip home, it would rear half, then full, then one-quarter, up and down; drove home using the trip odo.
