How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Randall C Your Own Question

Randall C
Randall C, ASE Master Tech
Category: Chevy
Satisfied Customers: 11114
Experience:  ASE Master, L1, 32 years, Diagnostic / Electrical Specialist
Type Your Chevy Question Here...
Randall C is online now
A new question is answered every 9 seconds

chevy express van why would the heater blower not work after

Resolved Question:

why would the heater blower not work after my 2008 chevy express van sits without being run for a week at a time?This has happened 4 times already.
Submitted: 2 years ago.
Category: Chevy
Expert:  Randall C replied 2 years ago.
Hello, My name isXXXXX will do my best to assist you.When this happens, does the battery seem a little low even if engine cranks and starts? does everything else work on the HVAC control panel when blower does not?
Customer: replied 2 years ago.

the battery power is normal

Expert:  Randall C replied 2 years ago.
Do all other HVAC controls work at panel except blower controls.? when does blower start working again
Customer: replied 2 years ago.

other times it happened,i took it to dealer,they fixed it,no explanation for defect

Expert:  Randall C replied 2 years ago.
Still needing to know if all the other controls work at the HVAC control panel when blower does not. LMk thanks
Customer: replied 2 years ago.
everything else works
Expert:  Randall C replied 2 years ago.
Thanks. My first thought is a connection problem at blower resistor. Its a small logic module. You acn try unplugging.plugging in next time thei happens to see if corrects. If so, try some dielectric grease on the contact terminals to help with connection. If not.. then I tend to lean to a bad blower resistor module Unsure why after sitting but connections can be lost during sit down times and then hit with 12 volts later on. here is location of the module.

Blower Motor Resistor Assembly Replacement

Removal Procedure



Important: The blower motor relay is an integral part of the blower motor resistor and cannot be serviced separately from the resistor.

  1. Disconnect the electrical connectors from the blower motor resistor assembly.
  2. Disconnect the resistor to blower motor wire from the retainer on the heat case.
  3. Remove the blower motor resistor assembly retaining screws (1).


  1. Remove the blower motor resistor assembly (2) from the evaporator and blower module assembly (3).

Installation Procedure


  1. Install the blower motor resistor assembly.



Notice: Refer to Fastener Notice.

  1. Install the blower motor resistor assembly retaining screws (1).

Tighten the screws to 2 N.m (18 lb in).

  1. Connect the wires between the blower motor and resistor to retainer on heater case.


  1. Connect the electrical connectors to the blower motor resistor assembly.


Customer: replied 2 years ago.
I tried unplugging everything per your instructions,still nothing from the blower.
Expert:  Randall C replied 2 years ago.
so your saying currently the blower will not come on./?
Customer: replied 2 years ago.

correct.When I change the right side dial from defrost to floor or vents or a/c,there is a slight hissing noise,then it dies down.

Expert:  Randall C replied 2 years ago.
remove the 40 amp blower fuse from under hood fuse box, reinsert it just to check connection. Then... turn key on, turn blower to high, then tap fairly hard and firm a few times directly on the blower motor at various spots near the back of blower and see if it kicks on
Customer: replied 2 years ago.
Thank you,Randall.That worked,the blower motor is now working
Expert:  Randall C replied 2 years ago.
what part worked, the fuse or tapping? if tapping, you have a bower sticking after sitting and will need new one at some point
Randall C, ASE Master Tech
Category: Chevy
Satisfied Customers: 11114
Experience: ASE Master, L1, 32 years, Diagnostic / Electrical Specialist
Randall C and other Chevy Specialists are ready to help you

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:

 
 
 
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
< Last | Next >
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
  • 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!!!! Alex Los 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. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, 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. Esther Woodstock, 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. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

    Dave Nova

    Chevrolet Technician

    Satisfied Customers:

    6870
    ASE Master Certification. GM World Class Certification
  • http://ww2.justanswer.com/uploads/ggrote1/2009-06-27_031011_me.jpg Gary's Avatar

    Gary

    Chevy Technician

    Satisfied Customers:

    5404
    15 years GM master tech
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    Master A.S.E Automotive technician

    Satisfied Customers:

    4071
    A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    Chevy Mechanic

    Satisfied Customers:

    2306
    Shop Owner and Mechanic on multiple makes.
  • http://ww2.justanswer.com/uploads/goodwrench9124/2008-11-09_220838_dscf0007.jpg goodwrench9124's Avatar

    goodwrench9124

    ASE Certified Technician

    Satisfied Customers:

    2041
    Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Chevy Tech -

    Satisfied Customers:

    1912
    18+yrs experience. State Inspector and Chevy Diagnostics