Dianedunn Posted December 23, 2015 Share Posted December 23, 2015 We have a 2003 Mack granite. Why is the fuse for tail/Id lamps getting hot and blows circuit breaker. Quote Link to comment Share on other sites More sharing options...
tjc transport Posted December 23, 2015 Share Posted December 23, 2015 nost likely a short in the rear lights or associated wiring. Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment Share on other sites More sharing options...
Challenger Posted December 23, 2015 Share Posted December 23, 2015 There should be a junction box (I dont remember what its called) near the rear crossmember. The wires should run from the front of the truck, back to the box then split out to the rear lights. I would break the circuit down one light at a time at the rear of the truck. Go from the light to the junction box. The problem could be anywhere but its a good place to start. Quote Link to comment Share on other sites More sharing options...
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