Medium and Heavy Trucks

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I have a 2016 mack cxu613 with mp8 motor and m-shift
I have a 2016 mack cxu613 with mp8 motor and m-shift transmission. It has a check engine light for crank position sensor circuit fault. Fault codes are p0335, p0336, p0339. Crank position sensor was r… read more
Mike Mcmillan
Mike Mcmillan
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6,305 satisfied customers
I have a flywheel I have to torque to 44 ft. Lbs (60 nm) and
I have a flywheel I have to torque to 44 ft. Lbs (60 nm) and then 120°. The 44 ft. Lb is the easy part but the 120° not so much. my torque wrench reads angle but it's too big to fit. It be enough to j… read more
Mike Mcmillan
Mike Mcmillan
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6,305 satisfied customers
I have a 2013 mack cxu613. My oil temp is running high and
I have a 2013 mack cxu613. My oil temp is running high and my oil pressure is also high but drops when the motor is under load. … read more
Mike Mcmillan
Mike Mcmillan
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6,305 satisfied customers
I have a p030600 code on my 2015 mack cxu613. Idle rough
I have a p030600 code on my 2015 mack cxu613. Idle rough when cold then go away is warm. No lose of power when up to temp. … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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2013 pinnacle mp8 mack with 315000 miles on it runs for 30
2013 pinnacle mp8 mack with 315000 miles on it runs for 30 miles ish and then starts missing you can shut it off wait appx 15 minutes it will run great for another 20 miles and then back to the missin… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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2014 Mack mp8 cxu613- replaced oil cooler valve, everything
2014 Mack mp8 cxu613- replaced oil cooler valve, everything seemed ok, but pulling mountains today at 60k lbs- oil is back up to 240+ on gauge. Where is the oil cooler & what does it look like? Transm… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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6,305 satisfied customers
How are you, i am in very big problem mack truck mp8 cxu613
hi sir how are you, i am in very big problem mack truck mp8 cxu613 one million kms year 2014. fault codes report attached .truck takes regen everyday during the heavy load and some times twice a day. … read more
Mike Mcmillan
Mike Mcmillan
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6,305 satisfied customers
I diagnosed Mack mp8 year 2014, the fault code is P20EE FMI
i diagnosed Mack mp8 year 2014, the fault code is P20EE FMI 00 AND P103C FMI OCCURED .what is the possible cause of these codes how to proper diagnose, how to read temp and diff pressure sensor readin… read more
Mike Mcmillan
Mike Mcmillan
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Have a 2012 mack cxu613 mp8. Having trouble starting. Had
Have a 2012 mack cxu613 mp8. Having trouble starting. Had been priming filter by pushing the plunger on filter housing for 10-15 minutes it would eventually crank. Taken off line going to pressure rel… read more
Mike Mcmillan
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Why does a vehicle ac unit freeze up and whats the best way
Why does a vehicle ac unit freeze up and whats the best way to thaw it?If i have the blower speed on high and the air flow dwindles to about nothing is tgat because of ice restrictions?… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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2012 mp8 cranks fine cold start hot low power code pdi 94
2012 mp8 cranks fine cold long start hot low power code pdi 94 fmi 7 … read more
Mike Mcmillan
Mike Mcmillan
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I have a 2013 Mack CHU613 with the MP8 engine. 2013 Mack
-SPN 1072 FMI 4 -SPN 1127 FMI 18 -SPN 647 FMI 5 -SPN 4811 FMI 2 -SPN 4813 FMI 4 -SPN 1265 FMI 4 -SPN 3936 FMI 0 -SPN 1127 FMI 10 -SPN 1127 FMI 14 -SPN 411 FMI 7… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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2013 Mack chu613 MP8 415c deleted. last part of my vin #
2013 Mack chu613 MP8 415c deleted. last part of my vin # DM011873. runs hot pulling. runs cool not pulling. bottom of radiator hotter than the top. I have put on a new water pump, all hoses, belts, fa… read more
Mike Mcmillan
Mike Mcmillan
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2009 Mack GU713 with a MP8-425M Hard start when sits
Second opinion] 2009 Mack GU713 with a MP8-425M Hard start when sits overnight cranks over then shuts off … read more
Wayne
Wayne
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2009 Mack CXU 613 with MP8 motor cooling fan remains on
2009 Mack CXU 613 with MP8 motor cooling fan remains on continuously and comes on with no power to the fan and runs when cold or hot and temp only reaches 135 F … read more
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Mack mp8 2012 in derate no codes no check engine light no
mack mp8 2012 in derate no codes no check engine light no lightening bolt, service def on information screen won't let us take out of derate… read more
Expert
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How can I tell if my fan clutch is working right on a mack
How can I tell if my fan clutch is working right on a mack mp8 engine 2009 … read more
Expert
Expert
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2014 mack cxu613 MP8 codes P20EE00 AND P207F00 REPLACED BOTH
2014 mack cxu613 MP8 codes P20EE00 AND P207F00 REPLACED BOTH NOX SENSOR,NO CODES NOW BUT CAN NOT REGEN AND TRUCK STILL HAS SERVICE DEF ON INFORMATION SCREEN AND IS DERATED… read more
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