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We put stainless injector cups with new injectors in a 2015
We put stainless injector cups with new injectors in a 2015 MP8 engine. We have all the trim codes programmed and it still will not crank. Turns over fine and the system is primed any help? … read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
2,187 satisfied customers
I got a 2017 mack mp8 445 and i have a fault code SPN 5357
Hi i got a 2017 mack mp8 445 and i have a fault code SPN 5357 FMI17 it says fuel injection quiantaty error for multiple cylinders … read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
2,187 satisfied customers
I have a 2005 Mack CHN613 VIN: *****************. The truck
I have a 2005 Mack CHN613 VIN: *****************. The truck has very very limited power. I have 3 active code as follows, SID 269 FMI 7, SID 27 FMI 5, and SID 146 FMI 5. When driving and watching the … read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
2,187 satisfied customers
I have a 2010 mack trident MP8 engine,done 935000 klm had
Hi Steve i have a 2010 mack trident MP8 engine,done 935000 klm had injectors and cups done about 375000 klms ago last week 19/3/19 had injectors removed and two new cups fitted and put the same inject… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have an engine code on a mack with an mp8 engine spn 1127
hello i have an engine code on a mack with an mp8 engine spn 1127 fmi 14 and spn 1127 fmi 18 … read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
2,187 satisfied customers
I HAVE A 2009 MACK CXU WITH MP8. GOING DOWN INTERSTATE IT
I HAVE A 2009 MACK CXU WITH MP8. GOING DOWN INTERSTATE IT WILL LOSE POWER AND BOOST THEN PICK BACK UP … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Where is the fuel transfer pump located on an MP8 425E Mack
Where is the fuel transfer pump located on an MP8 425E Mack engine ? … read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
2,187 satisfied customers
Having problems with a 2014 mack MP8. Truck seems to buck or
Having problems with a 2014 mack MP8. Truck seems to buck or shudder around 1400 rpm. Seems to be more of an issue when cool in the morning. Truck is starting fine. Injectors were updated with stainle… read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
2,187 satisfied customers
2007 mack with an MP8 engine.The customer brought it to me
2007 mack with an MP8 engine.The customer brought it to me after spending over 20,000 at a mack dealer and having a delete done hoping it would fix his low power.i am not a Mack expert so it is a scho… read more
Steven
Steven
Shop Foreman/Triage Tech
Associates
2,187 satisfied customers
Have a 02 w 900 with a c15 only has about 20 lbs of boost. I
hello hi have a 02 w 900 with a c15 only has about 20 lbs of boost. I have changed the air to air it was leaking, new hoses , new barometric sensor, new cam and crank sensor , new injectors , new turb… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I recently retuned my MP8 deleted the DPF and egr and gave
I recently retuned my MP8 deleted the DPF and egr and gave it 48 more hp it now doesn't want to pull can hardly make 100 km per hour loaded … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
2007 MP7 runs good in lower ear but looses power in higher
2007 MP7 runs good in lower ear but looses power in higher gear (spped ) no manifold pressure … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
We got a 2003 mack ch613 that tje dealer just put a new
We got a 2003 mack ch613 that tje dealer just put a new turbo on and it wont build over 22 psi of boost has no loos or busted hoses or pipes that we can tell been over it with soap and water thanx in … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
I have a boost problem drivine on flat road it fine comes
I have a boost problem drivine on flat road it fine comes to a little hill it dies change turboe egr etc still nothing even the mack up grades . frustating … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
2009 Mack chu613 mp8. need the diagnostic procedure or where
2009 Mack chu613 mp8. need the diagnostic procedure or where am I looking for, it has code MID 128 SID 27 FMI 7. also the on truck screen it shows DPF needs servicing. did check the soot level is 37%.… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
I have a 04 Mack that has a low power issue. We checked the
I have a 04 Mack that has a low power issue. We checked the intake system and found the cac leaking. replaced and same issue. the idle up seems really slow to me took 4.5 seconds on a stop watch to go… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Mack MP8 EGR engine. It's in a Mack Trident ( Australian model.)
Mack MP8 EGR engine. It's in a Mack Trident ( Australian model.) used to haul triple roadtrains in Western Queensland and the Northern Territory. I have replaced the EGR valve and the new one is doing… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Mack Trident - Australia model: I'm in Australia and have a
I'm in Australia and have a mack mp8 engine. The early one that was egr. I'm having trouble with the egr valve, it's new and like the old one before it from 10% engine load to 75% engine load the valv… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,672 satisfied customers
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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