Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I replaced leveling valve and pressure protection valve on
i replaced leveling valve and pressure protection valve on utility 2020 today[both are new], vin number : 162137 leveling valve handle went up and down, air bags no inflated, for old leveling valve ha… read more
Joe Green
Joe Green
59 satisfied customers
I have a 2012 freightliner business class m2 and my rear
Hi there I have a 2012 freightliner business class m2 and my rear bags won't dumb and also my parking brake won't set and my bags look like they won't inflate to the proper height any help would be gr… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,046 satisfied customers
2014 Mack 2014 Mack pinnacle dump truck, 215k miles, MP8
2014 Mack 2014 Mack pinnacle dump truck, 215k miles, MP8 engine & 10 speed transmissionIt was converted to a dump truck around 150k miles.Dash assembly looks like the truck was originally outfitted wi… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,666 satisfied customers
Trying to find the air suspension dump valve. The switch
I don't hear any air sounds when I flip the switch like I do when I flip the fifth wheel switch. Also the interaxle switch lights up when I flip the dump air switch.… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,666 satisfied customers
I had a fan belt break on my 2008 Mack CHU613 Pinnacle and
I had a fan belt break on my 2008 Mack CHU613 Pinnacle and the connected for the fan side control clutch ripped off. I need to know how to rewire without buying the entire assembly. … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,666 satisfied customers
I had a service on my 2011 mack pinnacle and the mechanic
I had a service on my 2011 mack pinnacle and the mechanic left the expansion tank cap off i drove it all day without . truck did not overheat , any damage ? … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,666 satisfied customers
2014 mack pinnacle with a mp8. What is the best way to
2014 mack pinnacle with a mp8 . What is the best way to remove the air compressor … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,666 satisfied customers
Air compressor on my Mack pinnacle 2011 stop building air is
Air compressor on my Mack pinnacle 2011 stop building air is it something I can replace my self if so can you send instructions … read more
Bradey V
Bradey V
Certificate
Working on a 2006 MACK 14 YARD DUMP NO AIR BRAKES SYSTEM
working on a 2006 MACK 14 YARD DUMP NO AIR BRAKES SYSTEM STOP WORKING YESTERDAY WHEN TRYING TO DUMP A LOAD NO PRESSURE ON THE AIR GAUGE TRUCK UNABLE TO MOVE UNABLE TO DUMP NO AIR PRESSURE ENGINE RUNNI… read more
Bradey V
Bradey V
Certificate
I have a freightliner m2-112 vin bw1522 that the air
I have a freightliner m2-112 vin bw1522 that the air suspension won't dump. I put a new switch in the dash, but no luck. The truck has 2 leveling valve at the rear. The dash switch is electric. What a… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,755 satisfied customers
2000 W900 NO AIR AT LEVELING VALVE. 860313 LAST SIX OF THE
YES TOOK LINES OFF AT VALVE NO AIR NOT SURE WHAT TO DO … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I have a 2011 mack has no power from bat but to starter but
I have a 2011 mack has no power from bat but to starter but the frame has 12 volts if u put yr tester to frame it is hot … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
Got an air leak somewhere on a 1996 Volvo tractor with M11+.
Got an air leak somewhere on a 1996 Volvo tractor with M11+. If we dump the suspension it holds air all night. If we do not dump it ... we're losing air. We have replaced the Air Dryer (needed one any… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Just bought a 2009 International Prostar. I suddenly have a
HI I'm Mario. Just bought a 2009 International Prostar. I suddenly have a problem with windshield wipers not working, no cruise control, airhorn not working, air bags not dumping. Need direction as to… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,013 satisfied customers
On a Freightliner M2 under an RV, I have a problem with the
On a Freightliner M2 under an RV, I have a problem with the air dump for leveling. It dumped Ok but now will not build any pressure. I can hear the button operating on and off assume the valve or what… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,013 satisfied customers
Hi ExpertI am want to buy a MACK truck for shipment to
Hi Expert I am want to buy a MACK truck for shipment to Africa. The customer is requesting for a MACK truck with Camel back suspension and not Airbag. unfortunately most trucks from 2000 and above are… read more
Travis A. Wells
Travis A. Wells
Truck Mechanic
Associates of Applied Science
15 satisfied customers
i need help i have 2000 fruehauf 53 dry van trailer and the
i need help i have 2000 fruehauf 53' dry van trailer and the air bags started airing all the way up when i would get unload so i change out the little leveling box and now when i push the red knob in … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
1998 VN610 (VIN# XXXXX) suspension air bag dump valve question.
1998 VN610 (VIN# XXXXX) suspension air bag dump valve question. Is there a valve, regulator, solenoid, or anything between the dump valve/switch on the dash and the air manifold box (part#(NNN) NNN-NN… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

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Owner at DJ Wilson

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Jeremy

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ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

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cumminsdr

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Chris (aka-Moose)

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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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