1989 gmc defroster

45

Asked by Nov 17, 2010 at 06:11 PM about the 1989 GMC Sierra

Question type: Maintenance & Repair

I cant get my fan to blow any air out of the defrost location. it works fine on the vent and feet locations. What should i do to fix this???

4 Answers

4,575

take it to a dealer.

745

you have a vacum leak, look for a round ball with vacum lines going to it. If it is mounted on the hood make shure the vacum hose is hooked to it'the round ball(vacum Canister) might be lokated in one of the fender wells. Also the vacum line likes to fall off of the engine right where it hooks to the engine definet vacum problem.

3 of 3 people found this helpful.
45

oh thanks sherlock.

3 of 3 people found this helpful.
45

and i mean that to anjy834u

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • 2009 GMC Acadia defroster 1 answer

    i recently started having problems with the defroster not blowing air out of the vent

    2009 GMC Acadia SLT-1

    -

    Maintenance & Repair

  • Defroster 2 answers

    The car defroster stays on even when the Yukon is turned off or on it stays on how do I get this to stop

    GMC Yukon XL

    -

    Maintenance & Repair

  • AC blows air from defroster 2 answers

    The AC air comes through the defrosted.

    2006 GMC Yukon SL

    -

    Maintenance & Repair

  • Air is not blowing out of my vents of a 2002 GMC Yukon only in defrost 1 answer

    Need help to fix problem of air not blowing out of vents of a 2002 GMC Yukon only blows out of defrost

    2002 GMC Yukon SLT

    -

    Maintenance & Repair

Sierra

Looking for a Used Sierra in your area?

CarGurus has 29 nationwide Sierra listings and the tools to find you a great deal.

ZIP:

Search GMC Sierra Questions

GMC Sierra Experts

#1 dandyoun
dandyoun
Reputation 110
#2 Js08016
Js08016
Reputation 100
#3 John Saffrahn
John Saffrahn
Reputation 80
View All

Related Models For Sale

Used GMC Sierra 1500
809 Great Deals out of 67,884 listings starting at $2,484
Used Ford F-150
2,174 Great Deals out of 206,277 listings starting at $1,499
Used GMC Sierra 2500
140 listings starting at $4,995

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.