Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

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

No air flow from defroster vents on 387 peterbilt. 2005

Customer Question
No air flow from...

No air flow from defroster vents on 387 peterbilt

Mechanic's Assistant: What's the make/model/year of your truck? Engine type?

2005 peterbilt C15 cat

Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far?

When you switch from dash to defroster for & back you can hear like some door geting closed and air stop flowing from dfroster

Mechanic's Assistant: Anything else you want the truck mechanic to know before I connect you?

Thats all

Submitted: 3 years ago.Category: Medium and Heavy Trucks
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 4 days by:
1/29/2019
Technician: Jackie Dempsey, Heavy Line Technician replied 3 years ago
Jackie Dempsey
Jackie Dempsey, Heavy Line Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 59
Experience: Diesel Technician at Cummins Pacific
Verified

Hello and thank you for choosing Just Answer! My name is ***** ***** I will be happy to assist you. On all vehicles there are actuators that control the blend doors for the heating and cooling system inside of the cab. The blend doors are sort of like butterfly doors that open and close to control the air flow when the selector knob is turned on the a/c control panel. If one of these actuators is not functioning properly, or a blend door has become stuck, then the only repair for it would be to remove the dash panels, access the appropriate actuator and/or the blend door to see which is the issue. I would recommend taking it to a shop to have a technician accurately diagnose the issue. I hope that I have been of assistance, if you have any further questions please do not hesitate to ask!

Ask Your Own Medium and Heavy Trucks Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Jackie Dempsey Your Own Question
Jackie Dempsey
Jackie Dempsey
Jackie Dempsey, Heavy Line Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 59
59 Satisfied Customers
Experience: Diesel Technician at Cummins Pacific

Jackie Dempsey is online now

Related Medium and Heavy Trucks Questions
I have a 07 387 Peterbilt with a Eaton Fuller 10 speed
Hello I have a 07 387 Peterbilt with a Eaton Fuller 10 speed automatic trans. I had a tractor protection valve replaced now when pressing the brake to select a gear it will not go to geta … read more
Justin
Justin
Diesel Technician
Vocational, Technical or Trade School
7 satisfied customers
I have a 2005 Pete model 330, sn 2NPNHD7X85M 848946. A/C
I have a 2005 Pete model 330, sn 2NPNHD7X85M 848946 . A/C only cools to 68 degrees at the vent, ambient temp is 95 degrees. Low side is 35psi, high side 200-230. Should the vent temp be lower? Driver … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
I already paid my subscription I need some more help. On the
Okay I already paid my subscription I need some more help … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
I already paid my subscription I need some more help. On the
Okay I already paid my subscription I need some more help … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
2009 Peterbilt 387 engine fan turns on for a short time and
2009 Peterbilt 387 engine fan turns on for a short time and turns off when driving in weather.The water temperature is at 180 and its cool outside. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 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
6,062 satisfied customers
1995 Ford L9000 dump truck I hear a big air leak in my
1995 Ford L9000 dump truckI hear a big air leak in my heater housing unit in the center of my dash where the middle vents are located - while the truck is running and after the truck is off.this leak … read more
Scott Anthony
Scott Anthony
Master Technician
HS Diploma
3 satisfied customers
2009 peterbilt 387 a/c quit. no power to switch on dash.
2009 peterbilt 387 a/c quit. no power to switch on dash … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
2004 cat acert c15 Diesel engine over heats only when boost
2004 cat acert c15 Diesel engine over heats only when boost pressure reaches over 30 psi with light loads and 17 psi with heavy loads. No coolant loss or oil. Compression is good on all cylinders. Wil… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
I have a 2005 peterbilt 379 with a cat acert C15 in it the
I have a 2005 peterbilt 379 with a cat acert C15 in it the blower motor will not work on any speed I have gotten the multimeter out and started checking when I go to any point in the system be at the … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
I need to know the switch # 1 position of the service brake
i need to know the switch # 1 position of the service brake pedal in peterbilt 369 and 387. the switch is on. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 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
214 satisfied customers
Got a 06 Peterbilt 387 Pacer motor the dash lights blink on
Got a 06 Peterbilt 387 Pacer motor the dash lights blink on and off like it's in limp mode … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
On a 2005 387 peterbilt C15 cat i lost jake brakes
On a 2005 387 peterbilt C15 cat i lost jake brakes and cruise Do you have a wiring diagram of this circuit?… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
Yesterday my speedometer, odometer, voltage gauge and
Yesterday my speedometer, odometer, voltage gauge and instrument light cluster stopped working. Checked fuses and relays in fuse box as well as relay directly behind gauges. Could not resolve the prob… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
When drivers door is opened and closed it will shut off. Do
When drivers door is opened and closed it will shut off . Do you have any ideas of what the problem would be. It is a 387 Peterbilt 2005 has a c15 Cat motor.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
have a 2001 Peterbilt 387 10 speed cat C-12, when we go through
have a 2001 Peterbilt 387 10 speed cat C-12, when we go through a really hard rain all our tach ,speedometer,oil pressure,water temp, turbo boost. oil temps all freeze and stop working.Sometimes they … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
i have a 2008 peterbilt 388 c15 cat cooling fan does not come
i have a 2008 peterbilt 388 c15 cat cooling fan does not come on with temp or manual switch. there is no power to switch on dash or solenoid under hood.no blown fuses at panel i would like to find out… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 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

6,062 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,353 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 satisfied customers

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

Curtis B.

Curtis B.

Technician

1,947 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 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