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» Northern California Ford Owners     » Automotive   » Tech Talk   » 65 dash cluster electrical

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Author Topic: 65 dash cluster electrical
robertrwalsh
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Member # 10479

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when I started by gas gauge was wonky. I replaced the gauge (had previously replaced sender, that wasn't the issue) and the dash panel voltage regulator. now not only is the gas gauge totally dead (before it worked, just continuity was poor) but the temp gauge is dead, and it was fine before. The only thing I can guess is a power problem. I am guessing I should just start at the fuse block and start working forward, but I was wondering if anybody out there had a likely spot to check before I go poking around. I am getting pretty good at taking the instrument cluster out, but it is a pain in the butt.
Posts: 73 | From: stockton, ca | Registered: Nov 2010  |  :
Tom Renzo
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Check the CVR by using an old fashioned test light. Install it between ground and theTemp lead going to the sender. Key the car and see if it blinks. If it does the CVR is ok. But because all the gauges are out the CVR is not working. It needs battery and ground and then it pulses the 5 volts needed to power the gauges. So check the printed gircuit on the gauge cluster for ground and battery feed to the CVR. This will cause it to blink out 5 volts needed for the gauges!!

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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013  |  :
robertrwalsh
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I will give it a shot. I am guessing the ground is OK because the instrument panel lights are working OK. I can't find the location of the ground on the wiring diagram, but it must be there somewhere. Thanks. bob
Posts: 73 | From: stockton, ca | Registered: Nov 2010  |  :


 
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