Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
Mercury 2010
Lv 7
Mercury 2010 asked in Cars & TransportationMaintenance & Repairs · 10 years ago

my 97 nissan altima's a/c controller/knob only works at full blast. how can I fix that myself?

so when the dial is set at 1,2 or 3 it doesn't work at all, but when its set to 4 it works fine... blows nice and cold. can I replace the control unit or is this a problem deeper under the hood?

2 Answers

Relevance
  • CLAYTON M
    Lv 6
    10 years ago
    Favorite Answer

    change the knob

  • Gary
    Lv 7
    10 years ago

    Sounds like blower speed resistor bad, usually under dash on a/c heater box. Suggest Dealer for repair shouldn't be too expensive, that way you don't mess up something else under dash.

    Source(s): ASE master auto tech ret.
Still have questions? Get your answers by asking now.