Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
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
203 satisfied customers
Truck air gauges on instrument panel tops out and sounds
Truck air gauges on instrument panel tops out and sounds warning beep for about a minute then goes off and does it again and again. Also has a lot of water accumulating in the air tanks over short per… read more
Eddy
Eddy
HD Truck Tech
GED
2 satisfied customers
2013 Prostar Maxforce ,will not build air pressure .Does the
2013 Prostar Maxforce ,will not build air pressure .Does the signal to activate the compressor come from the cab control computer behind the kick panel .What side of the engine compressor on. … read more
Eddy
Eddy
HD Truck Tech
GED
2 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
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
I have a air pressure problem on my Mac truck. It does not
I have a air pressure problem on my Mac truck. It does not generate enough air pressure on the primary side there is a 40 pound difference between the primary and secondary and when we work the truck … read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
187 satisfied customers
Not building over a100 pounds of air pressure. International
I'm going to if I can. I've drained the tanks a few times but there dry I changed the governor I checked the purge valve I checked for air leaks the compressor was replaced less then a year ago … read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
187 satisfied customers
International Prostar with Maxxforce 13. Air pressure not
International Prostar with Maxxforce 13. Air pressure not building even to 1 lb. Getting pressure to dryer (popped off main inlet and getting enough pressure to hose that I can't hold finger over it. Have replaced entire dryer at this point so new filter and governor. … read more
Eddy
Eddy
HD Truck Tech
GED
2 satisfied customers
We have air brakes on Freightliner chassis. We are getting
We have air brakes on Freightliner chassis. We are getting low air pressure out of the compressor, but it's making air. We changed governor and dryer and still can get air to tanks … read more
Roy
Roy
shop foreman
Associate Degree
5,219 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
3,400 satisfied customers
2009 International Prostar with cummins ISX 435 HP. engine
2009 International Prostar with cummins ISX 435 HP. engine serial 79339240. I am having air pressure problem. It takes pretty long to build pressure. once pressure is built it stays arouns 100-110 nev… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 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
2,672 satisfied customers
I have a Paccar/Cummins PX8/ISC motor that wont build air. I
I have a Paccar/Cummins PX8/ISC motor that wont build air. I have changed the air dryer filter, the air governor but still builds air real slow. I was going to put a new compressor on. Is there anythi… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 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
2,672 satisfied customers
I VE GOT A 2000 PETERBILT 379 TRUCK IS NOT BUILDING AIR PRESSURE
I VE GOT A 2000 PETERBILT 379 TRUCK IS NOT BUILDING AIR PRESSURE IT WAS BUILDING PRESSURE THEN STOPPED. IT WOULD BUILD TO THIRTY SOMETIMES IT WOULDNT BUILD AT ALL. YOU WOULD HAVE TO WAIT CUT THE TRUCK… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
air is slow to air up. not sure how to check the unloading
air is slow to air up. not sure how to check the unloading valves or the governor. There doesn't seem to be any air leak. I can't hear anything. But I know that there is a way to test between the gove… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 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
2,672 satisfied customers
i have a 1998 Freightliner unable to build over 50 pounds air
i have a 1998 Freightliner unable to build over 50 pounds air pressure for operation. unable to find any leaks. when engine shut down, the systems does not bleed off pressure. we pulled line off compr… read more
DirectInjection
DirectInjection
Field Service
Diplom
56 satisfied customers
08 ford f 650 6.7 cummins flat bed tow truck , developed low
08 ford f 650 6.7 cummins flat bed tow truck , developed low air pressure for a moment while driving , pulled over reved to 12oo and pressure built back,. Sat overnight and would not build pressure . … read more
JANECZFJ
JANECZFJ
158 satisfied customers
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