1985 Fuel tank sending unit....Price

[ezthere]

  Ok, I did it again.After dropping a cleaner 88 4runner body on the 85 chassis.I attempted to hook up the fuel tank sending unit. With out consulting the wiring diagram, I hooked up two wires from the harness that ran to the fuel tank sending unit..I pluged in the the fuel pump power wire, to the fuel gauge sending unit...

Using a fluke 87 I shot the sending unit wires {two} looking for continuity, checking the for an open circuit...Zero, notta. It's open.

It is a case ground. Meaning the tank bolted to the chassis is in itself a gnd.That checks ok.Conitinuity is present.

Q...How much is a new sending unit.?   

Around here I can only imagine. $100 bucks would be low balling it.

Chuck

[laoseth]

I've got a 3 wire sender off of an 86 for $50 if you want it

[ezthere]

Ya know I have a three wire plug also. I thought that went to the fuel pump.! I will check with my friend first. He has a few junkers.

Why three wires when the wire diagram shows two.?

[laoseth]

I have an 85, but I had to get a new tank form the junk yard after I dented the helll out of mine.  its off of an 86 or 87, I will take a picture of the connector when I get home.

[laoseth]

Sorry it took so long, here are pics of the sensor and the plug.  I am 90% sure the third wire is an on/off switch for a fuel warning light, and will test if you are interested.