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 ).
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.
What kind of engine does a Mack ch613 have?
I have 2003 Mack Ch613 with an E7-427. Engine won’t start, im not getting any power to the EUP. We have already swiched I have 2003 Mack Ch613 with an E7-427. Engine won’t start, im not getting any power to the EUP.
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!
Where can I get a Kenworth performance Mack?
No smoke,pyro temp is good,bost is 35 psi under load,fuel pressure is 80 psi Also forgot to add changed injectors and checked fuel lines Was this a Mack dealer. If so, which one? Performance mack/kenworth in BEAUMONT TEXAS BMT Certified Know-It-All!
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.
Where is the fuel pickup tube on a Mack?
I know that most Mack tanks have the fuel pickup tube welded into the top of the tank, but if that turns out to be the problem, it’s possible to use a hole saw and bore another hole in the top of the tank, weld in a female pipe fitting of the correct size and fabricate a screw in pickup tube as described earlier.