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Old 04-22-2011, 06:38 AM
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Gas Gauge

My 1965 Amc Rambler 660 classic gas gauge is not working, I don't know a lot. Where should I start looking? Thanks

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Old 04-23-2011, 06:06 AM
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not positive about your car but i had an old s10 whos gas guage didnt work. turns out the there was a flat ground wire that ran from the tank to the frame. it was rusty. i just wire brushed mine. but check if you have one and if you do or if you did and it broke or something then just run a new one or wire bursh the old one...not sure if this helps at all but just a thought
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Old 04-23-2011, 10:31 AM
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Originally Posted by Dong Johnson
My 1965 Amc Rambler 660 classic gas gauge is not working, I don't know a lot. Where should I start looking? Thanks
Does the temp gauge work. Those have a little regulator that feeds power to the gauges and it is a common failure item. If it is just the gas gauge, start by looking at the wiring to the tank. There should be a ground that goes to the frame and it could be rotted off.
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Old 04-24-2011, 10:17 AM
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The first thing to do is find the fuel gauge wire that runs to the tank. Ramblers usually have it in the trunk, a yellow wire running through a grommet in the trunk floor near the front, usually on the driver's side. Should be a connector close by. Unplug it then ground it. The gas gauge should read FULL when the wire is grounded. If the gauge doesn't move at all the wire may be broken. There is a big connector behind the left kick panel. Find the yellow wire there, unplug, and ground the end on the dash side. That will eliminate the wire running to the back. If the gauge still doesn't move, check the temp gauge the same way (except it doesn't go through the kick panel connector). Disconnect from the sender and ground. Should read at the top of the HOT end. If it doesn't, then the voltage regulator behind the cluster is bad. See for the best replacement.

If the gauges both read FULL/HOT, then you have a sending unit bad. you can get a replacement unit from a Rambler vendor (,, several others). Or you can modify a universal part to fit. You need one with a 10-78 ohm range (empty to full). This one works:

What you do is unbolt the unit from the adjustable mount and just use that. Drill the rivet out of the wire stud on the original unit and use a small brass machine screw and nut for the wire on the new unit. Pry the case off the original unit, leaving just a metal plate on the pickup tube. I got one screw through the slot and used a washer on the other one to clamp the new unit to the plate. It can be wired on also -- plain steel wire won't rust inside the gas tank since it's usually immersed in gas. Cut and bend the float arm to match the original.

While you have the unit out of the tank replace that old strainer on the end. It's a 5/16" pickup tube. A strainer for a 65 or so Mustang is perfect and can be easily ordered through any Mustang supplier -- auto parts stores may have it since it fits several early to mid 60s Ford products and should be popular enough for them to at least keep in the warehouse.
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