Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

Related Medium and Heavy Trucks Questions
I have a 2005 lt9513 Sterling I'm have some problem with my
I have a 2005 lt9513 Sterling I'm have some problem with my a.c. , the a.c. compressor keep blowing Freon out the back check valve. I change the dryer the high pressure hose and evaporator and change … read more
Andy
Andy
Truck Diagnostic Technician
Vocational, Technical or Trade School
2,098 satisfied customers
Air conditioning issues. 2001 kenworth t 800 caterpillar
I don't know what to try not my truck but if I wait for company mechanics it will be winter … read more
Andy
Andy
Truck Diagnostic Technician
Vocational, Technical or Trade School
2,098 satisfied customers
A/C. it does not cool enough. 2012 internacional prostar.
Change a/c compressor/ dryer/low pressure switch, it work for a week. … read more
Roy
Roy
shop foreman
Associate Degree
4,483 satisfied customers
I need a wire schematic for heater blower circuit, 2000
I need a wire schematic for heater blower circuit, 2000 sterling YAA53842 … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
2007 MACK CTP713...VIN 006282 AC blows cold and hard in the
2007 MACK CTP713...VIN 006282 AC blows cold and hard in the mornings, about mid day it slows down and doesnt blow as hard, its still cold just not as hard. and #4 speed doesnt work. already replaced b… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
2006 gmc c5500 8.1 v8 customer already had reviever and
2006 gmc c5500 8.1 v8 customer already had reviever and compress replaced. complaint is the a/c compressor keeps kicking on and off which is causing the a/c to blow warm. system does not have a leak a… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 satisfied customers
Sorry, I hit the wrong button earlier and closed out my
Sorry, I hit the wrong button earlier and closed out my window before entering credit card info. Do you have mechanics that are knowledgeable about big trucks? … read more
Andy
Andy
Truck Diagnostic Technician
Vocational, Technical or Trade School
2,098 satisfied customers
A/c problem in 98 peterbilt 379 condenser, a/c compressor,
a/c problem in 98 peterbilt 379 condenser, a/c compressor, accumulator, evaporator all been replaced, all lines resealed still does not cool truck condenser lines get hot… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 satisfied customers
1996 international navistar 4700 DT444E i have a a/c problem
1996 international navistar 4700 DT444E i have a a/c problem no voltage to clutch looking for wiring diagram last 8 0f vin # *****… read more
Andy
Andy
Truck Diagnostic Technician
Vocational, Technical or Trade School
2,098 satisfied customers
I have a 24ft box truck freightliner m2 buss class that the
i have a 24ft box truck freightliner m2 buss class that the a/c clutch wont stay engaged it cycles on and off… read more
Roy
Roy
shop foreman
Associate Degree
4,483 satisfied customers
2005 ford E450 6.0L Diesel shuttle bus. The front AC is
2005 ford E450 6.0L Diesel shuttle bus. The front AC is working good, we just charged it up under the engine hood. The rear AC which is an auxiliary unit mounted in the rear of the bus in the top corn… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
2,892 satisfied customers
i have a 1998 mack triaxle rd 388s what is the best way
i have a 1998 mack triaxle rd 388s what is the best way to change the thermostat (blowing not hot) ? also the blower resistor switch location ? vin # XXXXX thank you… read more
Jim
Jim
Diesel tech.
212 satisfied customers
have a 2012 freightliner cascadia. the a/c wont blow
have a 2012 freightliner cascadia. the bunk a/c won't blow cold (but can can blow hot). Front a/c blows cold great. computer is showing following codes: SPN 523318 FMI 7--inactive aux blower motor mec… read more
Clayton
Clayton
Technician
Vocational, Technical or Trade Scho
625 satisfied customers
I to have a 2006 T800 with a Cat engine, and factory AC, the
I to have a 2006 T800 with a Cat engine, and factory AC, the AC was working fine until we lost power to the compressor, it has power to switch & power to relay but not to compressor, can you guide me … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 satisfied customers
Hi i have a trouble in air conditioning with my ken worth
Hi i have a trouble in air conditioning with my ken worth since this summer. Last summer it worked fine .its air condition work on and off sometime it work some time not .I turned off my truck and on … read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 satisfied customers
Sterling: I need the tach circuit diagram for a 1999 Sterling
I need the tach circuit diagram for a 1999 Sterling Vin# XXXXX Starts to move but never comes fully up to speed. Tried a test head. Unit does not have a sensor in the bell housing. We hecked with Insi… read more
Andy
Andy
Truck Diagnostic Technician
Vocational, Technical or Trade School
2,098 satisfied customers
I have a 2007 sterling 9513 dump truck. My problem is that
Hi I have a 2007 sterling 9513 dump truck. My problem is that all my gauges will shut off and on at random and also the blower motor and ac. Today I had some down time and while this was happening I p… read more
Expert
Expert
This is an A/C question. I was talking with the parts counter
This is an A/C question. I was talking with the parts counter and service techs about an a/c problem with my '05 w9. I thought the compressor had frozen up because the a/c clutch will not engage. It s… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
696 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

2,803 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,243 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

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

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< 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