"Fuel Tank" Warning Light. 80 Series

On the 80 series there is a light on the dash near the fuel guage indicating empty main tank (no light for second tank)

There is also a sender at the bottom of the filter which I quess will come on if there is water trapped in the fuel. Mine has never come on but I guess it is one of the lights across the bottom of the guage cluster.

A simple filter change may fix it but if water has any quantity throw a bottle of metho into the tank to mix the water or else drain the tank.

I would not ignore the light. water into the injectors and it will stop.

Water can get in from condesation etc - which would be a bit more of a problem up your way with the humidity etc.

Also if you let the tanks run empty and stay empty for awhile they tend to rust and this will cause problems.

Quiet possible it is a block fuel filter unless you also have a filter system near the fuel tanks (I have a diesel 80 Series).

Hope this helps. Might also pay to try the new 80 Series site as well - www.0ffroad80s.com - quiet a few knowledgeable people there as well.

Karl

Scoey,
that warning light tells you you have a problem with the float level ( saftey level to avoid overfilling) in the main tankwhich controls the pump switch used to transfer fuel from secondary to main tank.
I have had the same issue for about 2 years with my 92 model.
if you try to transfer fuel you will see that the transfer switch will turn on and then turn straight off.
ie you cannot tranfer fuel.
If you completely fuel main tank the light will stay on until fuel level drops below about 3/4.

It will then come on again at about 1/4 tank level

I have found at times you can reset by removing fuse for guages then filling tank.

permanent fix is either remove tank and free up float or do as I did and rig up a bypass switch that allowed power to transfer pump regargless of amount of fuel in main. Just have to watch out I dont overfill. By keeping main tank above 1/4 I dont have warning light glowing.
cheers
Howard

The other thing it could be is the pump itself...when they draw too much current, the light goes on, but it is usually the floats in the main tank.
Basically, the ecu for the fuel transfer system (in the rear passenger quarter panel behind the left rear door) looks at tank levels in both aux and main...if a float in either jams, it will set off a warning...there are two floats in the main, one to show 3/4 full level, to allow the running of the transfer pump, and one to show full to stiop the pump...when they both activate at once, the ecu tilts...and brings up the tilt light...(i used to play alot of pinball)
You can try filling the main and hitting it with a wooden hammer a few times...or pulling the fuse....ubfoprtunately, it will return thou.
Andrew