Bahrain Posted May 18, 2020 Share Posted May 18, 2020 HI. mack truck has an starting issue the main fuel supply valve doesn't open during key start.....plz advise how I can check? Quote Link to comment Share on other sites More sharing options...
0 fjh Posted May 18, 2020 Share Posted May 18, 2020 (edited) Bro you need to leave more info If you need help ! leave us what lead up to this ! did it just start out of the blue? has it been getting worse over time,? is there or has there been a check engine light on on the dash ? that kind of stuff! too much stuff on these new trucks to go sideways! to just give a one size fits all answer! also is it an MP7 Or MP8 -MP10 model of truck would help as well ! we can't tell a whole bunch By Just A VIN! Edited May 18, 2020 by fjh Quote Link to comment Share on other sites More sharing options...
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Bahrain
HI.
mack truck has an starting issue the main fuel supply valve doesn't open during key start.....plz advise how I can check?
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