gas guage
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
The sending unit is on a stem that includes the fuel pump; both are accessable easily through the top of the fuel tank:
-remove the fuel door
-remove the rubber boot
-remove the clamps on the three fuel lines
-open the electrical connector
-remove the ring of screws around the metal flange
-lift the fuel pump & sending unit from the tank
-remove the fuel door
-remove the rubber boot
-remove the clamps on the three fuel lines
-open the electrical connector
-remove the ring of screws around the metal flange
-lift the fuel pump & sending unit from the tank
Race Director
Joined: Dec 2000
Posts: 17,551
Likes: 26
From: El Paso Texas
This should answer your fuel sending unit questions...
http://forums.corvetteforum.com/show....php?t=1574491
http://forums.corvetteforum.com/show....php?t=1574491
Thread Starter
Burning Brakes
Joined: Jan 2007
Posts: 1,170
Likes: 86
thanks. as soon as the weather gets better ill get on that. lol i also have a ranger with a 5.0 in it and i put a bronco II tank in it and i cleaned the crap outa the sending unit before i put it in and the gauge still doesnt read lol, so ill have to do that resistance check when i take it out. so for the mean time. i have 2 vechices without gas gauges 
5th Gear
Joined: Sep 2005
Posts: 5
Likes: 0
I had the same problem with my 89 Vette. Got on the forum and Frizlefrak sent me the directions to remove the unit and make the repair. His instruction were right on the money and my fuel gauge now works. As he points out just be careful with the removal and cleaning. Great advise from forum members.
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Safety Car
Joined: May 2005
Posts: 4,176
Likes: 7
From: Jennings LA
has anybody tried techron fuel additive on the C4 sender to clean it? I know it is recomended by Ford on some senders we are having problems with and it works. also it was a fix for some C5 sender problems.
Advanced
Joined: Jul 2003
Posts: 58
Likes: 1
From: Worcester MA
My gauge would read full until the tank was half full and then it would read properly. A added Techron and it improved it considerable. The car is in storage and I didn't get a chance to add it before I put it away. I'm going to continue to add it this driving season.
