A/C Screaming

Discussion in '70-Series Tech' started by zaxxon, Aug 17, 2006.

  1. zaxxon

    zaxxon

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    When my A/C kicks in it howls like a coyote under a tire. The belt is fine and the air is cold. What shuld I be lookin at? I did not find any animals in the engine bay.
     
  2. mac

    mac Crew Member

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    Try tightening the belt.
     
  3. lshobie

    lshobie

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    yup - what he said.
     
  4. crushers

    crushers post ho

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    or the belt might be glazed...
     
  5. BJ-44

    BJ-44

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    Could be the A/C has an issue and is building too much pressure and the belt can't handle it. Normal pressure is around 200 psi or so if it gets up past 300 a brand new belt can start squealing like a banshee or a coyote under your tire.:) Tensioner pulley bearing or A/C clutch pulley bearings going bad are other things to look at. If you have a bad bearing after running the engine for a minute the pulley should be smoking hot(too hot to touch) compared the the rest of the engine. Like said before tighten or replace the belt first and go from there.
     
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