Lamont Posted July 15, 2021 Share Posted July 15, 2021 My 2014 mack chu613 mp8 motor has went thru 4 a/c - alternator belts in 4 days, replaced tensioner replaced fan hub a/c works fine so does alternator, no problem running up an down highway, but when the truck goes into the landfill, that's usually were the belts break not sure if it could be transmission related mack shop said it was giving out a fault code for 3rd gear an reverse. Any ideas? Quote Link to comment https://www.bigmacktrucks.com/topic/67364-breaking-ac-alternator-belt/ Share on other sites More sharing options...
Lamont Posted July 16, 2021 Author Share Posted July 16, 2021 Bad tyranny mount causes motor to shift belt breaks instantly 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/67364-breaking-ac-alternator-belt/#findComment-476923 Share on other sites More sharing options...
Onyx610 Posted July 17, 2021 Share Posted July 17, 2021 Thanks for sharing, good to know. Quote Link to comment https://www.bigmacktrucks.com/topic/67364-breaking-ac-alternator-belt/#findComment-476949 Share on other sites More sharing options...
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