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Temp and Fuel Gauge don't work

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captain eagle View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote captain eagle Quote  Post ReplyReply Direct Link To This Post Posted: Jun/01/2016 at 6:20pm
Originally posted by captain eagle captain eagle wrote:

I have a 1981 AMC Eagle Limited Wagon !!! The fuel guage works and I have heat But Temp Guage doesn't work! Please tell how to get it w\to work!!! EHANK YOU VERY MUCH!!!
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farna View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote farna Quote  Post ReplyReply Direct Link To This Post Posted: Jun/04/2016 at 9:38am
First disconnect the temp sending unit and ground the wire to the block. If the temp gauge goes up to "HOT" (all the way up) the gauge is working fine, replace the sending unit. If not, make sure there is no break in the wire before replacing the temp gauge.
Frank Swygert
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Post Options Post Options   Thanks (0) Thanks(0)   Quote White70JavelinSST Quote  Post ReplyReply Direct Link To This Post Posted: Jun/08/2018 at 5:24pm
Those parts that were talked about in this thread, that were being purchased at Radio Shack are now not available through the defunct Radio Shack,

Anyone found a new source?
70 Javelin SST, second owner, purchased 1972
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 6PakBee Quote  Post ReplyReply Direct Link To This Post Posted: Jun/09/2018 at 9:48am
Originally posted by White70JavelinSST White70JavelinSST wrote:

Those parts that were talked about in this thread, that were being purchased at Radio Shack are now not available through the defunct Radio Shack,

Anyone found a new source?


This is the only way to go.  I have not personally used one but I know of two friends that have and they are very satisfied.

http://rt-eng.com/rte/index.php/RTE_limiter
Roger Gazur
1969 'B' Scheme SC/Rambler
1970 RWB 4-spd Machine
1970 Sonic Silver auto AMX

All project cars.

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farna View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote farna Quote  Post ReplyReply Direct Link To This Post Posted: Jun/09/2018 at 10:15am
Never heard of it called a "limiter" before, but I guess that's a Chrysler term for what AMC calls the IVR (Instrument Voltage Regulator). RTEs instructions for using an external regulator with the regulator built into the fuel gauge will work for AMCs made that way -- Hornets and Gremlins through about 77 or 78, 67-69 American/Rogue.

With Radio Shack gone there is no easy place to get small electronic components. You can order from several on-line places or Amazon though. Might cost you $7 to order a $2 part though. I recently needed a couple diodes for a repair -- no local source. Had to order a pack of $10 for $6 and pay $5 to ship, all for $2 worth of diodes it there had been a local RS.  Many cities still have electronics or HAM radio hobby stores, maybe you're lucky. I did a quick Google search and really couldn't find anything in Columbia SC. Might be some small shop somewhere...
Frank Swygert
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lucas660 Quote  Post ReplyReply Direct Link To This Post Posted: Jun/09/2018 at 10:38am
I would try Mouser for the L7805 regulator. Or call electronics repair shops locally. I have ordered L7824 and 7924 regs for audio projects from China for about a dollar but they take a while to arrive.
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