Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
2007 Columbia freight liner Detroit builds air but when pop
2007 Columbia freight liner Detroit builds air but when pop off goes off won't reseal tried tapping manually make seal but when builds back an pops off won't reseal … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
213 satisfied customers
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
Roy Belding
Roy Belding
7,745 satisfied customers
The air pressure is not building up at all. If I am hearing
The air pressure is not building up at all. If I am hearing yhe constant "tsk,tsk,tsk" does that mean that the problem may lie with the air dryer?… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
515 satisfied customers
2012 freightliner cascadia change air dryer now primary tank
2012 freightliner cascadia change air dryer now primary tank builds all the way up secondary builds up to 80 psi dryer spits in seconds… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
The air dryer not purging, but the air compressor is dumping
The air dryer not purging, but the air compressor is dumping air just had governor replaced … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
515 satisfied customers
My 2020 cascadia is loosing air in secondary tank but only
My 2020 cascadia is loosing air in secondary tank but only when driving have had truck in multiple shops can't find it doesn't leak while sitting … read more
Mikael
Mikael
Bachelor's Degree
150 satisfied customers
Have a 2010 isx15- 425st, SEr # 79449737 which I am told
have a 2010 isx15- 425st, SEr # 79449737 which I am told came out of a 2011 Freightliner Cascadia. trying to see if the dash wiring of a 2012 Freightliner Cascadia is compatible with the the motor we … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
515 satisfied customers
I am having a problem with my bendix air dryer on my 2012
Hello again I am having a problem with my bendix air dryer on my 2012 freightliner cascadia. 6 weeks ago I rebuilt the purge valve and repl aced the hose that feeds the air dryer air. 2 days ago a dea… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
515 satisfied customers
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
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
515 satisfied customers
The purge valve in my air dryer goes off every 15 seconds
The purge valve in my air dryer goes off every 15 seconds I've already tried a lot of things… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
515 satisfied customers
I have a 2007 international 9900i with Acert cat I put a new
I have a 2007 international 9900i with Acert cat I put a new air dryer on it it started leaking from purge valve after it purged put another new air dryer on it still doing the same thing… read more
timdieseltech
timdieseltech
lead diesel tech, shop owner
Vocational, Technical or Trade School
207 satisfied customers
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
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
515 satisfied customers
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
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
515 satisfied customers
I have a 2010 freightliner cascadia with the dd15. Vin
I have a 2010 freightliner cascadia with the dd15. Vin AM4426. Having an issue with the air dryer going off all the time. Truck will build to 130 and the dryer will go off as it should, but within 30-… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
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
Don
fleet superintendent
Vocational, Technical or Trade Scho
1,636 satisfied customers
Having trouble with my air drier, keeps popping every 30
Having trouble with my air drier, keeps popping every 30 seconds or so. No leaks in any lines, new air drier, new compressor and air governor. If i place my hand under the purge valve after it "pops",… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
Air pressure lost while driving,I pullesd over and lost all
Air pressure lost while driving,I pullesd over and lost all air now it won't build back up? … read more
Roy Belding
Roy Belding
7,745 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
1,806 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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