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 Mr GOODWRENCH Your Own Question

Mr GOODWRENCH
Mr GOODWRENCH, ASE Certified Technician
Category: Chevy
Satisfied Customers: 184
Experience:  MASTER ASE TECH, 10+ yrs GM experience
43220722
Type Your Chevy Question Here...
Mr GOODWRENCH is online now
A new question is answered every 9 seconds

I have a 2003 Chevy Suburban. My ac blows cold, but only through

Resolved Question:

I have a 2003 Chevy Suburban. My ac blows cold, but only through defrost vents. starts blowing correctly when i first start car. Then it switches to defrost right away even though the display indicates dash vents
Submitted: 4 years ago.
Category: Chevy
Expert:  Mr GOODWRENCH replied 4 years ago.
Hello I will be helping you with your Suburban. Do you have automatic controls or manual?
Customer: replied 4 years ago.
auto controls
Expert:  Mr GOODWRENCH replied 4 years ago.

Okay here is a recalibration procedure. This procedure will relearn the actuators position, When there is a problem with an actuator it will default to a set position. The mode default is the defrost vents. If this procedure does not correct your problem then the mode actuator will need to be replaced. Let me know if you have any more questions or if I can assist you further

 

  • Clear all DTCs.
  • Place the ignition switch to the OFF position.
  • Install the HVAC actuator.
  • Connect all previously disconnected components.
  • Remove the HVAC/ECAS fuse for a minimum of 60 seconds.
  • Install the HVAC/ECAS fuse.
  • Start the vehicle.
  • Wait 40 seconds for the HVAC control module to self-calibrate
  • Customer: replied 4 years ago.
    ok. it seems to be okay. thank you. i have some other issues that all started about the same time. I was replacing my fuel filter so i removed neg battery terminal and relieved pressure on system. when i put all back together is when i got the defrost symptom and a rough idle. you helped with the defrost issue but still have rough idle and stall at idle. Any advice as to what i may have to do after replacing fuel filter to reset idle speeds or anything else?
    Expert:  Mr GOODWRENCH replied 4 years ago.
    Okay the rough idle is coming from the throttle body. The throttle body has learned the idle and has accepted the build up of gunk around the throttle plate. You need to clean the throttle body. Remove the snorkel tube and take a rag with some carb cleaner on it and remove the build up. The engine needs to be off, you will see the gunk clean the bottom and top of the body, you will need to hold the throttle plate open to get it clean. Do spray too much inside the body. Reinstall the snorkel tube and start the engine up. It will run a little rough and smoke a little this is normal. After it smooths out the idle will be fine. Let me know if you have any questions
    Customer: replied 4 years ago.
    I will return and click accept answer. Just wanted to say thank you. everything i read was very vague and pointed to the EGR and IACV. My only other question is do I remove the throttle body or just the snorkel you referred to in your post? How else would I clean both top and bottom of the throttle body? Sorry, i'm just a broke novice trying to avoid a very costly repair at the dealership.
    Expert:  Mr GOODWRENCH replied 4 years ago.
    No problem, just remove the snorkel tube and open the throttle blade with your fingers and hold up open and clean it this way. Any more questions feel free to ask
    Mr GOODWRENCH, ASE Certified Technician
    Category: Chevy
    Satisfied Customers: 184
    Experience: MASTER ASE TECH, 10+ yrs GM experience
    Mr GOODWRENCH and other Chevy Specialists are ready to help you
    Customer: replied 4 years ago.
    hey thanks,again! worked like a charm.

    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
     
     
     
    Chat Now With A Chevy Mechanic
    Mr GOODWRENCH
    Mr GOODWRENCH
    Technician
    123 Satisfied Customers
    MASTER ASE TECH, 10+ yrs GM experience