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hello everybody Im new here dont know really what to do I got a 2003 ram 3500 823000 miles on it and am having electrical problems im losing power to the a/c and heater blower motor Ive figured out so far . Thats its not the motor or the control knobs the blower knob on the dash is losing power would anybody know where to start to look for the problem. I figure theres a short or bad connection somewhere......
 

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Have you found the HVAC relay??? Try trading it with a similar relay in your truck.
Relays can fail intermittently.
 

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Welcome to the Best Diesel Forum EVER! Sounds like a trial and error thing in2trucks is steering you down a good path. You're going to have to start thinking about all of the electrical connections from the trouble spot first. Welcome from Redding CA!
 

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welcome to the dieselforums from one of your friendly forum super moderators. I hope you continue to come back often, to become a valuable member of our forum.

did you say 823,000 miles on it????? thats AWESOME!
 
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