Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
Foot valve leaking on 2003 international 9900i, put knew one
Foot valve leaking on 2003 international 9900i, put knew one on and its still leaking, cant build pressure up past 10 psi. Im thinking foot valve is a faulty one … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
I have a 1998 KW W900L cat 3406E motor. Im having a problem
I have a 1998 KW W900L cat 3406E motor. Im having a problem when i pull the tractor/trailer valves to lock up the brakes it takes a feww seconds in order for the brakes to Lock up. What could be the i… read more
Bradey V
Bradey V
Certificate
I have an international 9400i that has brake lights not
I have an international 9400i that has brake lights not working. The blinkers work, but the brakes do not. With a test light I show no power across the white and red wires at the rear of the truck. Wh… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
533 satisfied customers
I have a 2000 Sterling actera that I'm need help with air
I have a 2000 Sterling actera that I'm need help with air brake issues. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
I owen a 03 peterbilt 379,i m having a problem that i can't
Good afternoon... i owen a 03 peterbilt 379,i m having a problem that i can't figure it out,when i apply the break there no air going to my trailer breaks,the air back goes up all works normal but no … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
I replaced the air lines and electrical line. Ive tightened
I replaced the air lines and electrical line. Ive tightened them down but when going through an inspection in Washington the officer pointed out that there was a severe air leak coming from the blue(s… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
533 satisfied customers
Air leaking from cab bulk head when foot pedal is applied.
Air leaking from cab bulk head when foot pedal is applied … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,563 satisfied customers
2002 mack granite. Both dash valves are replaced but i still
2002 mack granite. Both dash valves are replaced but i still have air coming out the blue glad hand when i push on the brake pedal. Both valves are in the out position … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
533 satisfied customers
Having trouble repairing air brakes on semi. when i hook to
Having trouble repairing air brakes on semi. when i hook to trailer the red knob wont stay in and had lots of pressure pushing out. the yellow know will stay in until i try to push knob for emer trail… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
When the parking brake is applied, if I push on the foot
When the parking brake is applied, if I push on the foot pedal air leaks from the trailer protection valve exhaust. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
2012 pro star plus international change foot valve and tp5
2012 pro star plus international change foot valve and tp5 valve still have a problem bleeding air through service glad hand when push pull valve on trailer applied and brake on trailer will lock down… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
4,361 satisfied customers
Just to make myself clear with the park brakes released then
Just to make myself clear with the park brakes released then applying the foot peddle i have no air leaks but with the park brake on and apply the foot peddle i have air coming out the supply/emerganc… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
4,361 satisfied customers
2011 Freightliner Coronado no air at red glad hand when
2011 Freightliner Coronado no air at red glad hand when trailer valve is pushed in on dash. if red trailer valve is pushed in on dash and you step on brake pedal then air feed out of red glad hand but… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 satisfied customers
ABS light is staying on located on trailer. Where to start
ABS light is staying on located on trailer. Where to start troubleshooting? … read more
Doug Barnowski
Doug Barnowski
HD truck tech
14 satisfied customers
my Kenworth 2002 Service brakes wont release when applied.
my Kenworth 2002 Service brakes wont release when applied. it is the same with or without trailers connected the only way to release brakes, is to apply the yellow parking brake then release it. it th… read more
Rudolph Diesel
Rudolph Diesel
Service manager/ Master mechanic
Vocational, Technical or Trade Scho
1,918 satisfied customers
I have a 2003 Mack Vision tipper towing a 4 axle dog trailer.
I have a 2003 Mack Vision tipper towing a 4 axle dog trailer. When you apply the park brakes for the trailer they do not engage for approx 10 seconds. Also, if you apply the truck and trailer park bra… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
Hello, I have a 2000 sterling tractor and my trailer brake
Hello, I have a 2000 sterling tractor and my trailer brake lights are on as soon as the key is turned on and stay on, the underhood relay is getting "switch on' power with key on, also i get power at … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,563 satisfied customers
Have a CXU- 600 Pinancle Driver complains that hand valve
Have a CXU- 600 Pinancle Driver complains that hand valve application is slow to release Shop test show make ing a hard foot brake application, brakes release immediately Hard pull on the hand valve s… read more
JANECZFJ
JANECZFJ
158 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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