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I am working on a Freightliner M2 class truck 2012. It has
I am working on a Freightliner M2 class truck 2012. It has the Cummins C series engine with a single cylinder Wabco(###) ###-####compressor and D2 governor. The air system was only building to 115 and… read more
Gary A.
Gary A.
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I have a 2014 Freightliner M2 106. Having air brake
I have a 2014 Freightliner M2 106. Having air brake problems. The compressor loads and unloads to often. Air leaks from the purge valve were the compressor is not pumping.… read more
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Nich1019
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1998 Freightliner classic. Detroit series 60 engine Not
1998 Freightliner classic. Detroit series 60 engineNot building air pressure A brand new air pressure was was put in but still not building pressure any help?… read more
Daniel Wilson
Daniel Wilson
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I have a 2007M2 Business class freight liner, it has a MBE
I have a 2007M2 Business class freight liner, it has a MBE 900–250. I replaced the compressor and the filter dryer. Started the truck And it felt pressure but would not purge, like a dummy I revved it… read more
Joe Green
Joe Green
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My freightliner m2 will not build air pressure more then
my freightliner m2 will not build air pressure more then 75lbs … read more
Mike Mcmillan
Mike Mcmillan
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My air compressor on 2015 Freightliner DD 13 not wanting to
My air compressor on 2015 Freightliner DD 13 not wanting to build air. will build slowly at 1500 rpm. Replaced air cartridge on dryer and the purge valve a few weeks ago because the purge valve was po… read more
Expert
Expert
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I have a 2005 Freightliner M2. Has a Mercedes MBE 4000
I have a 2005 Freightliner M2. Has a Mercedes MBE 4000 engine. Air pressure will not go up past 70 psi on both gauges. Checked all over the truck can't find any substantial leaks anywhere. Hope the pr… read more
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Mike Mcmillan
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I have an 1999 Peterbilt 379 with a Detroit Series 60 11 1L
Hello, I have an 1999 Peterbilt 379 with a Detroit Series 60 11 1L engine. This morning the air dryer started to purge constantly every 30 seconds. Once the pressure is built up the air dryer purges a… read more
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The air brake pressure on my 1998 Freightliner is slow to
The air brake pressure on my 1998 Freightliner is slow to build and when I apply the brake while the engine is running, the air pressure drops to 60psi within 15 pedal pumps. Too fast. I don't hear an… read more
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Freightliner Columbia 2010 with Detroit Series 60 Air drier
Freightliner Columbia 2010 with Detroit Series 60 Air drier assembly and air governor have both been replaced twice. Both primary and secondary air gauges going to 150 psi Air from air drier purges fo… read more
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I have a question ... 2009 Detroit series 60 air compressor
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Expert
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Truck Vin H72526 cummins ism air compressor part number..
Truck Vin H72526 cummins ism air compressor part number.. problem started a couple days ago..truck would build way too much pressure 140+ psi. I changed the governor out and it built and stayed perfec… read more
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Air dryer started purging every minute and a half or so. No
Air dryer started purging every minute and a half or so. No loss in pressure. Swapped the air dryer and new governor. Started doing that I'm very cold weather. Still doing the same thing after new par… read more
Don
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At start up the 2006 Freightliner sometimes the air pressure
At start up the 2006 Freightliner sometimes the air pressure will not build up past 60psi,even at higher rpm's.Other times it gets up to 100psi at idle. … read more
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Working on a 2007 Freightliner Columbia with Series 60 Detroit.
Working on a 2007 Freightliner Columbia with Series 60 Detroit. Builds air very slow and wont purge from new drier. Will build to about sixty psi at idle then when reved to around 800 RPM will build t… read more
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Daniel Wilson
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M2 business class with isl meritor wabco air dryer 2014 I've
M2 business class with isl meritor wabco air dryer 2014 I've had problems with this truck having too much water in tanks. I've replaced dryer filters 2x in about 2 month's trying to figure the problem… read more
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Freightliner M2 business class air pressure wont pass 80ps
Freightliner M2 business class.... air pressure wont pass 80psi at idle with new compressor, new governor, air dryer , rear brake chamber...if I rev the truck it wld build and purge ... but after the … read more
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I am working on a 1991 Pete with a L10. I just updated the
I am working on a 1991 Pete with a L10. I just updated the dryer with a AD-9 dryer. The dryer i took off i could not identify. It looked close and had 3 lines hooked up to it like the AD-9. The proble… read more
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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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