zeitgeist57 Posted May 24, 2009 Report Share Posted May 24, 2009 I've been tearing apart my truck, trying to find the short or bad connection that's caused me to burn 6 alternators in the past couple of months...really annoying. I've gotten new batteries, new cables tying the Batts and running to the starter, new/cleaned grounds, new cables to the glowplug relay, new etc etc... but the alternators I get from Advance Auto (lifetime warranty 63-amp) only last about 15 minutes before the internal voltage regulator fries. While I was tracking the IGN wire (pink w/ dark stripe) to the gauge cluster I found this mysterious box. Inside, an old circuit board was all corroded. What could this be? Is this a resistor box for the voltmeter? (My Oil,Speedo and fuel are the only gauges that work. Water temp and voltmeter don't work). Any description of what this is would be great. Also, the black casing around the circuit board has two numbers. Top says "913" and the bottom says "14047829" http://img.photobucket.com/albums/v710/zeitgeist57/DSC02008.jpg http://img.photobucket.com/albums/v710/zeitgeist57/DSC02010.jpg http://img.photobucket.com/albums/v710/zeitgeist57/DSC02011.jpg http://img.photobucket.com/albums/v710/zeitgeist57/DSC02012.jpg http://img.photobucket.com/albums/v710/zeitgeist57/DSC02014.jpg Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted May 24, 2009 Report Share Posted May 24, 2009 low coolant warning module..... if you can make it out reynoldsburg today I can print you off wiring diagrams if you want Quote Link to comment Share on other sites More sharing options...
zeitgeist57 Posted May 24, 2009 Author Report Share Posted May 24, 2009 Oops! Thank you for the offer, Dave. Is this a readily available module for purchase if I want to replace it? My "Low Coolant" light comes on at ignition, but haven't given it a reason to test this light yet... The pics suck, but the circuit board is green and coated in corrosion... Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted May 25, 2009 Report Share Posted May 25, 2009 maybe.... diesels last longer than gas trucks and that module only comes on the diesel so you might get lucky Quote Link to comment Share on other sites More sharing options...
Mensan Posted May 25, 2009 Report Share Posted May 25, 2009 It's the board that makes the focus on your camera work... PM me better pics. I had a board like this in the Miata go bad (it controlled the turn signal). It didn't take long to re-solder. Quote Link to comment Share on other sites More sharing options...
zeitgeist57 Posted May 26, 2009 Author Report Share Posted May 26, 2009 It's the board that makes the focus on your camera work... PM me better pics. I had a board like this in the Miata go bad (it controlled the turn signal). It didn't take long to re-solder. Ugh...both PM'ing you and getting better pics require effort I'm not willing to exert. Still love you though, Eli. The DieselPlace.com guys confirmed it's a Low Coolant module. I'll use the ol' eyeball down the radiator neck gauge from now on. With an old GM, the gauges/idiot lites can't be trusted anyway! I'm passed it. My truck is charging now, and I'm embarassed to say after 6 alternators and an entire underhood rewire what MAY have been the culprit... Quote Link to comment Share on other sites More sharing options...
Mensan Posted May 26, 2009 Report Share Posted May 26, 2009 Quote Link to comment Share on other sites More sharing options...
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