Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
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
Mike
Shop Foreman/Triage Tech
Associates
3,294 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
Having a hard time building air. ISX 15 Cummins 2013
I am. I've put a new air dryer on, a new air compressor on changed the dryer filter, changed the dryer governor. I used shop air to check flow in all of the air lines to both tanks and pushed shop air through the signal air line … read more
Mike
Mike
Shop Foreman/Triage Tech
Associates
3,294 satisfied customers
I have an international prostar vin BN195258 I'm having air
Hello i have an international prostar vin BN195258 I'm having air issues on my truck. Just couple days ago i had 30lbs of air pressure and we called out a tech on the road. They ended up replacing the… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I have a question ... 2009 Detroit series 60 air compressor
I have a question ... 2009 Detroit series 60 air compressor was passing a lot of oil I replaced the compressor and the governed but it is not doing the purge can help me please… read more
Expert
Expert
6,924 satisfied customers
No air pressure in tanks changed air dryer. Volvo 2012 isx
intake line has strong pressure from compressor to air dryer air pulsate going to dryer… read more
Expert
Expert
6,924 satisfied customers
Not building air. 1997 kenworth k100 cat 3406E. Checked
checked airleaks nothing leaking just installed new governer yesterday … read more
Mike
Mike
Shop Foreman/Triage Tech
Associates
3,294 satisfied customers
Have a 9900 international 2007 year ISX Cummins wouldnt
Have a 9900 international 2007 year ISX Cummins wouldnt build air at boss shop they adviced compressor bad replaced same problem also put on new govenor any ideas… read more
Mike
Mike
Shop Foreman/Triage Tech
Associates
3,294 satisfied customers
Will not build air pressure above 60 lbs. New compressor and
Will not build air pressure above 60 lbs. New compressor and govenor … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,791 satisfied customers
Air compressor seems to be running almost constant but
Air compressor seems to be running almost constant but pressure is not hardly moving, staying around 110 to 120. Dryer pops off about every 60 seconds … read more
Mike
Mike
Shop Foreman/Triage Tech
Associates
3,294 satisfied customers
I have a 2007 kenworth t800. I won't build air pressure in
Hello I have a 2007 kenworth t800. I won't build air pressure in tanks. But the pop off valve keeps popping off every 15 seconds. Compressor pumps fine. What could be the problem?… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,314 satisfied customers
Volvo 670: air pressure will not build up....was in sleeper
air pressure will not build up....was in sleeper when pressure dropped and buzzer came on 670 volvo d13… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,735 satisfied customers
I have a 2009 T800 KW day cab with isx cummins Is it possable
I have a 2009 T800 KW day cab with isx cummins Is it possable to get a diagram of the compressed air system… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I have 2 issues.1 I own a 04 Volvo 670 with an ISX Cummins.It
I have 2 issues.1 I own a 04 Volvo 670 with an ISX Cummins.It is throwing a 5 v supply code.#2 problem is I have a Bendix dryer that I replaced 2 months ago.New compressor and air line between the com… read more
Clayton
Clayton
Technician
Vocational, Technical or Trade Scho
627 satisfied customers
Hi i got a 2006 Volvo VNL780 with a cummins ISX 530 but this
Hi i got a 2006 Volvo VNL780 with a cummins ISX 530 but this truck about 420xxx miles ago and from my first day air would purge every 40 seconds i replaced Air Governor, 1/4 inch line that Comes from … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,589 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
2,735 satisfied customers
I changed out my governor and now I notice that my air dryer
I changed out my governor and now I notice that my air dryer does not go off. But I have three air tanks and one of them has a release at the back of it and it goes off when the air dryer is supposed … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,791 satisfied customers
I have a 2007 Cummins ISM, and the air compressor will not
I have a 2007 Cummins ISM, and the air compressor will not unload. I have tried three new governors, and replaced the head (which houses the unloader valve). I checked the discharge line, and all actu… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,589 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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