fracroy Posted June 11, 2014 Share Posted June 11, 2014 2012 Mack pinnacle will not start not even crank checked start ign relays and fuse new starter and solenoid get power to solenoid help plz Quote Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/ Share on other sites More sharing options...
gearhead204 Posted June 11, 2014 Share Posted June 11, 2014 does it have a neutral safety sw. for the trans? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-248892 Share on other sites More sharing options...
mrsmackpaul Posted June 11, 2014 Share Posted June 11, 2014 is it getting power to the small wires on the solenoid or just the big wire ?Paul Quote Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-248893 Share on other sites More sharing options...
j_martell Posted June 11, 2014 Share Posted June 11, 2014 My 2011 Granite (EPA2010 MP7 405-M) shut down on idle timer on site back in the winter and wouldn't start, farted around checking things out as best I could without tools in -20c, ended up having it towed back, turned out to be a small (14 or 16 ga) "trigger" wire had rubbed through on top of the tranny....one of the few spots I couldn't get at to check..... 1 Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-248910 Share on other sites More sharing options...
slingblade Posted June 27, 2014 Share Posted June 27, 2014 you would think trash hauler that they would put a trap door between the seats to get at that area,, Quote Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-250682 Share on other sites More sharing options...
carlotpilot Posted June 27, 2014 Share Posted June 27, 2014 i would be on the phone to mack- raising hell Quote Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-250687 Share on other sites More sharing options...
j_martell Posted June 27, 2014 Share Posted June 27, 2014 you would think trash hauler that they would put a trap door between the seats to get at that area,,You'd figure, but no. Even if they did the tower with the pump and roll off air controls would be on top of it..... Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-250699 Share on other sites More sharing options...
gra511 Posted June 28, 2014 Share Posted June 28, 2014 I had this same problem on a company truck, its a 2012 CXU. I got a hammer and tapped on the starter a couple of times and it started. If you have any problems like that call the 1 800 number for mack and a tech usually can offer advise on your problem Quote Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-250753 Share on other sites More sharing options...
bbigrig Posted June 28, 2014 Share Posted June 28, 2014 I had one of the small wires to the starter relay break inside the heat shrink tubing. It was one of the eyelet connectors to the small relay mounted on the starter. The truck is a CXU 2013 and the wire was rotted and broken already. Quote Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-250849 Share on other sites More sharing options...
fracroy Posted July 1, 2014 Author Share Posted July 1, 2014 I have power to even small wires on solenoid Quote Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-251260 Share on other sites More sharing options...
staxx Posted July 2, 2014 Share Posted July 2, 2014 The engine ecm sinks the ground to solinoid . If you have another similar truck swap the ecu . Have had a few pin connection issues at main cab pass threw connector , pins not locked in . Quote Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-251355 Share on other sites More sharing options...
fracroy Posted July 2, 2014 Author Share Posted July 2, 2014 Had a previous one and it was pins in the ecm thanks staxxto much thinking lately to many truck s not enough mechanics Quote Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-251409 Share on other sites More sharing options...
j_martell Posted July 2, 2014 Share Posted July 2, 2014 Don't think too hard .......something might overheat...... Lol Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/36021-wont-crank/#findComment-251450 Share on other sites More sharing options...
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