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My haldex pure air plus dryer is cycling every 20 seconds
my haldex pure air plus dryer is cycling every 20 seconds and won't allow pressure to build above 60 psi … read more
Bradey V
Bradey V
Certificate
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
Was working on an air brake issue with you earlier this
Was working on an air brake issue with you earlier this week. The purge valve is fluttering after purge. I have replaced governor, unloaded, both lines from governor, filter assembly and check valve i… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 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
430 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
430 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
I have a motorhome on a Freightliner chassis, 400hp cummins
I have a motorhome on a Freightliner chassis, 400hp cummins isl. Just got home from a trip. Went to start the rig this morning to go get fuel, and the air pressure would not come up. I found a constan… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
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
Triage Tech/Shop Foreman
Associates
430 satisfied customers
Compressor is not putting out enough air pressure to
Compressor is not putting out enough air pressure to activate the dryer … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
2009 international prostar purges air every 15 seconds
2009 international prostar purges air every 15 seconds already replaced governor, purge valve, air compressor head for the unloader valve and a new signal line from governor to the air compressor. Tes… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 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
Triage Tech/Shop Foreman
Associates
430 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
430 satisfied customers
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
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
430 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
I have an International 9900 with an AD-IP air dryer. The truck
I have an International 9900 with an AD-IP air dryer. The truck will not build air due to air constantly pumping out the purge valve. I have installed a new purge valve, new governor, new desiccant ca… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 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
1,700 satisfied customers
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Daniel Wilson

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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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