Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
Im having issues with my western star building pressure over
Im having issues with my western star building pressure over 60psi … read more
Keiphun Sowell
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Have a 91 kw. Had to replace the air dryer. The air dryer
Have a 91 kw. Had to replace the air dryer. The air dryer will not purge and i am building in excess of 170 lbs of air pressure. … read more
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I have a 2014 CXU613 that builds air pressure and looses it
Mike I have a 2014 CXU613 that builds air pressure and looses it for no apparent reason. Changed filter and Purge Valve. No leaks anywhere from lines. It looses air while just idling with no one in th… read more
Joe Green
Joe Green
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I have Volvo d13 truck problem in air dryer when governor
Hi I have Volvo d13 truck problem in air dryer when governor cut out dryer make exhaust out after few second compressor start again and dryer make exhaust out again this prosesor works all time pls le… read more
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Question about 2016 Volvo VNL670 D13 Last 8 VIN: GN953606 I
Hello Mike, Question about 2016 Volvo VNL670 D13 Last 8 VIN: GN953606 I probably have a problem with the air governor . My air Pressure go almost up to 140psi then it releases by Purge Valve (after re… read more
Mike Mcmillan
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My semi won't build air and my air governor is leaking
My semi won't build air and my air governor is leaking through my exhaust port … read more
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Mci 12 coach bus air compressor is frozen trying to get bus
Mci 12 coach bus air compressor is frozen trying to get bus to raise … read more
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I am working on a freightliner business class M2 6.7 air
Hello, I am working on a freightliner business class M2 6.7 air compressor, 2008. The problem is the air compressor won't stop charging. It goes from 130 to 120 and it starts to charge again. Its inco… read more
Wayne
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2017 Volvo Semi Truck vin# ***************** I need the
2017 Volvo Semi Truck vin# ***** I need the location of the governor and the air dryer for the air compressor. Diagrams and or pictures will be really appreciated as I can't find them and not sure wha… read more
Bradey V
Bradey V
Certificate
We have a old school bus we are using for our church. It is
We have a old school bus we are using for our church. It is about a 96 model. The air pressure builds to about 18 lbs every time I try to build it up. It doesn't leak off fast and I put a new governor… read more
Andy
Andy
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Vocational, Technical or Trade School
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I have a 93 Freightliner with a N14 Cummins motor and it
I have a 93 Freightliner with a N14 Cummins motor and it builds up too much air pressure. Governor opens to purge air dryer but doesn't seem to stop building pressure. Gets up to 200 or 230 PSI … read more
Mike Mcmillan
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I have a air pressure problem on my Mac truck. It does not
I have a air pressure problem on my Mac truck. It does not generate enough air pressure on the primary side there is a 40 pound difference between the primary and secondary and when we work the truck … read more
Mike Mcmillan
Mike Mcmillan
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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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Mike Mcmillan
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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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HAVE A 86' MC686FC MACK TRUCK. AIR BRAKE PRESSURE BUILDS
HAVE A 86' MC686FC MACK TRUCK. AIR BRAKE PRESSURE BUILDS ERRATICLY. BEFORE AIR PRESSURE STARTS TO BUILD AIR WILL SPUTTER 3 TIMES OUT OF SAFETY VALVE ON AIR DRYER,THEN AIR WILL BUILD.I HAVE REPLACED GO… read more
Don
Don
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1994 international 4900. we have been having severe problems
1994 international 4900. we have been having severe problems with the air freezing up on it and we want to bypass the air dryer. what are the ramifications of bypassing the unit? I would much rather s… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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Looking expert 2000 kenworth detroit series 60 it was not
looking for a expert for a 2000 kenworth detroit series 60 it was not pumping air over 50 psi.i found main airline had a hole in it,i changed line now its pumping to much air it pumps up 150 psi i cha… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
The air pressure on my Mack CX613 is ranging from 150 psi at
The air pressure on my Mack CX613 is ranging from 150 psi at times then it will drop below 70 and will not build air pressure until I bleed the air down to 20 psi. After I bleed the air down to 20 psi… read more
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Wayne
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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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