Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

Related Medium and Heavy Trucks Questions
I have 2016 peterbilt 579 with a Cummins engine that heat
I have 2016 peterbilt 579 with a Cummins engine that heat blows cold. Heat core is hot couldn't find any valves to turn on or off! … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
8 satisfied customers
I have a 2016 w900 with the Cummins motor. My heat works in
I have a 2016 w900 with the Cummins motor. My heat works in the sleeper but blows out cold air in the front of the cab. What could be the possible problem? … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
8 satisfied customers
Where is the blend door on a 2009 387? Cummins isx, 2009
Fixing it myself, bought blend door actuator and think I replaced it? … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
8 satisfied customers
Being told I need to replace heater assembly in dash. 2016
Being told I need to replace heater assembly in dash … read more
BrentR718
BrentR718
8 satisfied customers
I have a 2006 Peterbilt 387 Cat C15. The AC is throwing hot
I have a 2006 Peterbilt 387 Cat C15. The AC is throwing hot air. I checked and the AC hose is frozen. Should I close the heat valves? There's 4 of them I think … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
In the there is hot air blowing from the vents but in the
in the bunk there is hot air blowing from the vents but in the cab it is cold air … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
The front air conditioner is blowing cold air but blowing
The front air conditioner is blowing cold air but blowing hot air in the sleeper … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have 2017 Peterbilt 389 I have problem on my heat. When i
I have 2017 Peterbilt 389 I have problem on my heat. When i turn on heater it just blowing cold air even if i switch it to hot What might case this problem … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
A/c blowing cold in cab but only hot in sleeper. I have a
a/c blowing cold in cab but only hot in sleeper. I have a 2005 387 pete … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Last night my AC stopped blowing cold. When for dinner and
Last night my AC stopped blowing cold. When for dinner and came back and in began to blow cold. Every once in a while it seems it turns off for a minute and then starts blowing cold.Is this an indicat… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
Peterbilt387, yr 2007. air conditioner problems. air vent is
peterbilt387, yr 2007. air conditioner problems. air vent is not cool as it should. evaporator coil freeze, compressor not recycling… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
We have a 2015 Thor Tuscany and we were traveling last night
We have a 2015 Thor Tuscany and we were traveling last night in 15 Degree weather the cab heat was on full at the highest temp and we could not get the cab over 38 degrees we moved the heat from cold … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 2010 peterbilt 387; the a/c is not working
hello, I have a 2010 peterbilt 387; the a/c is not working properly, sometimes when the road's vibration occurs, it stop cooling and now I have to close the hot water valve because it is heating conti… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have just bought a 2010 Cascadia and the cab heater will
Hi I have just bought a 2010 Cascadia and the cab heater will not blow hot air, any thoughts ?… read more
Roy Belding
Roy Belding
7,582 satisfied customers
2005 pete 387 ac blowing hot had a tech at TA truck stop
2005 pete 387 ac blowing hot had a tech at TA truck stop check it pumped the system down held a -30 for 30 min. charged it with 4 lb 134a tech said that was all it takes but it still blows hot air he … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Kenworth T660: Hello,I have short question and would be very
Hello, I have short question and would be very thankfull if anyone could give me some tips how to handle the following problem: I have Kenworth truch T660 2010. Just bought it 2 weeks ago and proir to… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
4,361 satisfied customers
heat will only blow cold works good in sleeper heater core
heat will only blow cold works good in sleeper heater core seems to be hot new fan, fan motor relay for fan control (fan speed) new temp. control switch truck is a 2000 sterling at9500… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 2007 w900l kw the ac works but no air blows in sleeper,in
I have a 2007 w900l kw the ac works but no air blows in sleeper,in the cab all the air b,lows in the floor,cant get it to blow out of vents… read more
diesel-tech
diesel-tech
Owner of landrys truck repair llc
136 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,234 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,023 satisfied customers

worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

Certified Truck/Bus Technician

4,361 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 satisfied customers

24 years of experience diagnosing & repairing

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x