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Gauges not working?

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Old 12-28-2010, 01:16 AM
  #1  
Dro21
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Default Gauges not working?

Well my gauges dont work(they go crazy) fuel gauge always show alittle over empty or 1/4 full, Temperature goes past the H, Fuel pressure goes high. My father said when he got the car around 6yrs they worked fine. What do you guys think it is?

-Regulator?
-Printed circuit?
-Gauge touching metal(if this was the case would the gauges even move?)
-Ground?(where do i look)
-Gauge?

Alright what do you guys think is the culprit? where to start?

thanks in advance
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Old 12-28-2010, 06:15 AM
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2+2GT
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Start by checking the regulator. Your test probe should flash.
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Old 12-28-2010, 08:41 PM
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Dro21
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Originally Posted by 2+2GT
Start by checking the regulator. Your test probe should flash.
Im sorry to sound dumb but the cluster has to be connected right to check the regulator right
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Old 12-29-2010, 06:44 AM
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Stangatic
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Sounds like the $30 P.O.S. regulator to me (I wish there was a better alternative). I am not an electrician, but I believe that you need to have the cluster connected. If you have a ohms meter use that to check the regulator. If my memory serves me correctly, the 12 volts coming from the battery should be reduced to 5 ohms after going through the regulator. Do a google search about the subject and you'll find some good articles.

http://www.allfordmustangs.com/forum...ck-gauges.html
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Old 12-29-2010, 01:25 PM
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TexasAxMan
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Originally Posted by Stangatic
Sounds like the $30 P.O.S. regulator to me (I wish there was a better alternative).
There is an alternative, build your own solid state one. Only costs about $5-$10 and will last the life of the car. There are plenty of how-tos on the net, just search.
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Old 12-30-2010, 06:07 AM
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tx65coupe
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I also recommend the electronic instrument cluster regulator. We made one. You can build your own or buy this one on Ebay.

http://chris66dad.tripod.com/id29.html

http://cgi.ebay.com/ebaymotors/Ford-...Q5fAccessories

Last edited by tx65coupe; 12-30-2010 at 06:11 AM.
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Old 12-30-2010, 06:17 AM
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Stangatic
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Good one tx65coupe> I was actually looking at the father and son site that you recommended yesterday morning and saw their solid state cluster regulator. I am trying to decide if I should build it my self or buy the one off ebay.
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Old 12-30-2010, 10:32 AM
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I bought that one off ebay. It's made by Ivan, a member of this forum (ic237). PM him if you have any questions.

https://mustangforums.com/forum/clas...-question.html
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Old 12-30-2010, 11:40 PM
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Dro21
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i already bought a voltage regulator from Napa, i should of ordered 1 of those of ebay...On the other hand when installing the new circuit and regulator do i have to disconnect the battery or do anything prior to connecting the Gauge cluster?
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Old 12-31-2010, 05:58 AM
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tx65coupe
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I went through a few of those replacement stock type ones and none of them worked right. The original one works better than any of them did.
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