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Username Post: 68 Fuel gauge wire routing        (Topic#373167)
Posts: 17

Reg: 11-06-21
05-25-23 08:43 PM - Post#2858348    

Unfortunately previous owner of my 68 sedan converted car to LPG and removed the tank. Ive got a new tank and just trying to find the old wiring to reconnect to.

Diagram suggests signal wire sits above tank and enters the trunk next to hole for licence plate lights. It then joins the 6 wire terminal on the left side of the trunk.

Is this correct, Im hoping to find the original wire at this 6 wire terminal.


Posts: 283

Loc: Connecticut
Reg: 12-01-07
05-30-23 05:06 PM - Post#2858551    
    In response to Munro

The gas tank sending unit wire goes to the TAN wire in the trunk harness. It is located next to the brown wire that feeds to license plate lights, the holes are about an inch apart. Be sure to connect the black ground wire on the sender to a clean body screw toward the front facing tank. Normal senders have a terminal on top which you supply a wire to the trunk connection.

Don S.
1968 SS427 x 5
1968 Impala L-72
1969 Chevelle SS396

Posts: 110

Loc: Australia
Reg: 03-01-11
05-30-23 08:52 PM - Post#2858558    
    In response to Munro

Guessing it's a new sender too. I replaced mine 6 months or so ago. Unfortunately, although it was listed as fitting a 67 Impala (which it does), it's not made for a 67 Impala, yours may be the same.

Measure the tank depth at the sender mount, & measure the sender, mine wasn't ever going to get to the bottom.

I bent the arm to get it as close as I could, but that compromises the full tank accuracy. I decided it's more important to know when you're empty & I'll probably never fill it anyway at today's prices.

Even after bending the arm it still doesn't represent empty correctly but at least I know when the gauge is showing empty I've still got a few more liters so i'm not completely disappointed.

The other thing is & I don't know how good they are because mine wasn't working at all, but the original was a canister style rather than a float on the end of an arm. The float style fluctuates a lot, either when you're braking, turning corners or going up & down hills, but it's better than nothing.

67 Impala 4Dr Hardtop.


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