Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
Air compressor keep running every minute. Freightliner
this problem start from first day i bought truck Truck only have 10 miles than… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
6,170 satisfied customers
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
Keiphun Sowell
Owner Brothers Restoration/Troubleshoot
AutoDiesel Technology
2,348 satisfied customers
Air in secondary tank will not build air over 50psi at idle.
Air in secondary tank will not build air over 50psi at idle … read more
Expert
Expert
10,508 satisfied customers
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
65 satisfied customers
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
Joe Green
Joe Green
65 satisfied customers
I have an 04 Mack cv713 the primary air system keeps
I have an 04 Mack cv713 the primary air system keeps building air well past 140 but the secondary only builds up to 130 and takes about 20 minutes to build that much I've replaced the governor and the… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
6,170 satisfied customers
I'm having this same issue. The problem with the answer is
I'm having this same issue. The problem with the answer is that the secondary port on the air dryer has no air to supply the tank … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
My 1988 flc freight liner tractor suddenly won't build air
My 1988 flc freight liner tractor suddenly won't build air in brake system … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Name is will my primary air gauge gets up to around 60psi
Hey my name is ***** ***** primary air gauge gets up to around 60psi but my secondary is around 100 I drained the tanks already primary still got around 50-70 but then drops when I hit the brakes … read more
james Roberts
james Roberts
Maintenance assistant
Vocational, Technical or Trade School
3 satisfied customers
I checked the wet tank for a check valve and it doesn't have
Second opinion] Hello I checked the wet tank for a check valve and it doesn't have one and I didn't see any sign of one on the dryer from the dryer to the compressor or the dryer to the wet tank how m… read more
Expert
Expert
10,508 satisfied customers
I have a 2005 Freightliner Columbia not building air
I have a 2005 Freightliner Columbia not building air pressure to the second tank also. I have put in a new compressor, governor, and check valve. Don't find any leaks anywhere... … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
2005 mack granite e7 wont build air. I installed new
2005 mack granite e7 wont build air. I installed new compressor, new govner, new air dryer. Will not build air at idle. Air lines are not kinked. No regulators going into tanks. … read more
Bradey V
Bradey V
Certificate
Air continuously leaking from the air dryer purge valve when
Air continuously leaking from the air dryer purge valve when compressor has unloaded, when the brake pedal is pressed it seems to stop. The air dryer, compressor and governor have been replaced ......… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
6,170 satisfied customers
I'm having with air pressure on a 379 Pete with vin #
I'm having with air pressure on a 379 Pete with vin # ***************** it's only building 90 psi on primary side no air leaks and I have tried a new compressor, still 90 psi no secondary at all no ai… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
6,170 satisfied customers
I have a problem with a Kenworth T600, Its a 1997 tractor trailer
I have a problem with a Kenworth T600, Its a 1997 tractor trailer truck. The compressor does not go into unloaded stage long enough to cool and the air dryer unloads about every 30 seconds. The compre… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
we have a 2007 pete having trouble with air ride suspension
we have a 2007 pete having trouble with air ride suspension when step on gas pedal load gauqe goes down 15 lbs when step on break load gauge goes up 15 lbs on the truck frees it self up and rolls easy… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
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
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
hi mate,ive got a customer with a 2011 fuso heavy with air
hi mate,ive got a customer with a 2011 fuso heavy with air pressure problems.The primary tank builds up to 6bar but the secondary tank will not build up pressure.there is no external air leaks on the … read more
Steve
Steve
Self Employed
High School or GED
30 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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Wayne

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worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

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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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