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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
2017 Volvo Semi Truck vin# ***************** It's not
2017 Volvo Semi Truck vin# ***** It's not building any air pressure. The air bags in the rear are full but the gauge says zero and the alarm is on so it's not building any pressure. Where should i sta… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 2012 cascadia freightliner dd13 engine, I will lose
I have a 2012 cascadia freightliner dd13 engine, I will lose air pressure when sitting still all the way until the buzzer goes off, but when I am driving consistently the pressure build back up. The t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
My Mack truck is not building air past 40 lb. It's not a car
I have replaced the governor on the air compressor I've also rebuilt the purge valve on the air dryer and replace the small line going from the air dryer to the regulator on the air compressor … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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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
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
Triage Tech/Shop Foreman
Associates
398 satisfied customers
I have a 1988 pet engine but air build up really slow. 1988
i have a 1988 pet(###) ###-#### engine but air build up really slow … read more
spankyjr1
spankyjr1
Journeyman
Vocational, Technical or Trade Scho
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I have a 2007 freightliner columbia mbe4000 i cant get it to
I have a 2007 freightliner columbia mbe4000 i cant get it to built any air at all i replaced the dryer with governor on it I replaced the primary ait tank and check valve on fron of it along with all … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
2011 mach cxu613 does not build air pressure only 50 psi.
2011 mach cxu613 does not build air pressure only 50 psi . New governor same issue don't hear leaks from compressor discharge line or any major leaks… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
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
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
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
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
2009 freightliner Coronado. Randomly looses air, can't hear
2009 freightliner Coronado. Randomly looses air, can't hear any leaks. Put a new govenor and dryer filter on. Once it drops to 80 it will rebuild. Sometimes it doesn't rebuild and have to shut truck o… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
1999 international 4900 DT466e I cannot seem to get my air
1999 international 4900 DT466e I cannot seem to get my air compressor to build air. There is no air coming to my tanks it seems but the main line off of the compressor and going to the air dryer is ge… read more
spankyjr1
spankyjr1
Journeyman
Vocational, Technical or Trade Scho
2,873 satisfied customers
I have a 2009 freightliner columbia cl120 with a Detroit engine
I have a 2009 freightliner columbia cl120 with a Detroit engine DD15 and my question is I can't build enough air I'm getting air in my air bags both truck and trailer but I'm only going up to 100 psi … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
My air brakes pump up to 135 psi but when I release park brakes
My air brakes pump up to 135 psi but when I release park brakes and supply air to trailer the psi drops to 100psi and does not build backup to 135psi unless I shut it down and drain air tank then it b… read more
Travis A. Wells
Travis A. Wells
Truck Mechanic
Associates of Applied Science
15 satisfied customers
Just recently replaced my air compressor on my truck. Truck
Just recently replaced my air compressor on my truck. Truck will only build pressure when at high idle and only slowly then. Compressor has 5 lines coming to it intake, pressure out, two cooling lines… read more
spankyjr1
spankyjr1
Journeyman
Vocational, Technical or Trade Scho
2,873 satisfied customers
my unloader valve is leaking replaced unloader valve still
my unloader valve is leaking replaced unloader valve still leak blows off through brass valve on top of compressor what else could be the problem… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 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
2,740 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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