low fuel light
Thread Starter
Drifting
Joined: Dec 2002
Posts: 1,426
Likes: 1
From: San Diego, CA Website: ChrisMitchell.us
low fuel light
When I got the car the low fuel light did not work, later I found out it didn't work because somene removed the bulb and did not replace it. So I replaced the bulb and now it's always on (now I know why the bulb was removed, that damn light is bright and annoying). So now the big question... what are the possible problems? I'm not sure how this light is activated, does it go off the fuel gauge? or from the sending unit at the gas tank? I do have a slight problem with my fuel gague... it's not accurate when the tank gets below half full. With a 1/2 tank or more the guage works perfect but below that the needle starts jumping all over the place and I have to guess when I'm getting low. Could that mess with the low fuel light? Even when the tank is full and the guage reads full?
If I cant figure it out then I will take the easy way out and remove the bulb again.
If I cant figure it out then I will take the easy way out and remove the bulb again.
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
Originally Posted by 77Dream
When I got the car the low fuel light did not work, later I found out it didn't work because somene removed the bulb and did not replace it. So I replaced the bulb and now it's always on (now I know why the bulb was removed, that damn light is bright and annoying). So now the big question... what are the possible problems? I'm not sure how this light is activated, does it go off the fuel gauge? or from the sending unit at the gas tank? I do have a slight problem with my fuel gague... it's not accurate when the tank gets below half full. With a 1/2 tank or more the guage works perfect but below that the needle starts jumping all over the place and I have to guess when I'm getting low. Could that mess with the low fuel light? Even when the tank is full and the guage reads full?
Once you've completed that...than see if low fuel light does same thing. If it does, than the problem is probably the circuit board on the back side of the console. It may have a short so its best to check the circuit with an amp meter. These circuit boards are flexible so a solder line may have cracked. Usually Radio Shack geeks can help diagnose and repair such things for a few bucks. I had some speaker board circuits reparied for $25.00...beats the price of replacement.
Racer
Joined: Nov 2000
Posts: 290
Likes: 0
From: Omaha, NE
On my 79 there is a separate, small circuit board that operates the bulb for low fuel light. As I recall that board just twists in like a regular bulb so perhaps you are missing the low fuel circuit board??? I doubt that would cause your other gauge problems though. Good luck.
