What kind of battery does a Mack truck have?
Anything below 11.5 volts and it gets the lack of will to work. Mack have installed a voltage warning light in the dash ( just a little red LED ). Is more of a problem on these buckets as the cab and chassis electrics are 24v and the engine is 12 volt. Check to see if you have a battery on the way out. 94 Mack ch. 613. V max. 400.
Why does my 94 Mack have no fuel?
94 Mack ch. 613. V max. 400. Just stopped have fuel come on the return line to tank did the filters checked the little fuel solenoid works good. Cracked the injections lines. But no fuel there. Dealer sent me a square block with a solenoid on it for 1200.
Can a 1998 Mack E7 engine crank but no start?
I have same problem with 1998 Mack e7 crank no start but no fuel too injector it has a Electric injector pump but on that not I found my starter has a really bad draw it’s pulling my 12.87 volts down to 8.6-9 volts so I have a starter order for it so I’ll see how that works
Is the 2011 Mack CXU using coolant but no leaks?
2011 Mack CXU using coolant but no leaks? Mack Pinnacle, first impressions!! Dreaded air dryer problem… Software for trouble shooting for MP8 Mack Trucks?
Why does my Mack E7 engine not start?
Turns out the ECU is very sensitive to voltage drop. Anything below 11.5 volts and it gets the lack of will to work. Mack have installed a voltage warning light in the dash ( just a little red LED ).
What kind of engine does a Mack rd688 have?
I have a 2002 Mack RD688S with an E7 engine in it. When you turn the key on, it powers up and everything seems fine, but when you go to start it, it wont start. We changed the ECU with one that works, and we checked the VECU also transfer pump if it has one. been there done that…………… BMT Certified Know-It-All!
What kind of fuel shut off does a 90 Mack have?
Just a thought, what kind of fuel shut off does it have electric or cable, make sure it’s opening all the way.I have a 90 mack that had an electric air shut off on the pump,I had to take it off and hook up a cable shut off because sometimes it wouldent shut the fuel off and sometimes it wouldent turn it on. 3 weeks later…
https://www.youtube.com/watch?v=5z04EMnWdQw