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Fan switch problem

Discussion in 'Electrical' started by JeepJunky, Dec 12, 2018.

  1. Dec 12, 2018 at 5:41 PM
    #1
    JeepJunky

    JeepJunky [OP] New Member

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    99 jeep wrangler 4.0
    I have a 99 wrangler. I have replaced the fan switch twice this year. Just replaced again. Same problem, fan runs for awhile then shuts off. Any suggestions?
     
  2. Dec 13, 2018 at 8:08 AM
    #2
    Awrench

    Awrench Well-Known Member

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    A few other components to check, wiring is a known issue some connectors may melt - causing issues- confirm the connector at resistor is good, tight no corossion.
    At the HAVC module in dash (control panel) same check of elec connectors.

    How comfortable are you with A DVOM, and a wiring diagram?
    Do you have AC? IF we need to get a diagram.

    PS on a reread - what switch did you change twice?
     
  3. Dec 13, 2018 at 10:30 AM
    #3
    OFFGRID

    OFFGRID Well-Known Member

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    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    Also, Does the fan come back on after a while on its own, or does it never come back on.
     
  4. Dec 13, 2018 at 3:34 PM
    #4
    aggrex

    aggrex Well-Known Member

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    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Welcome! Just for clarity did you have any positive results after changing the fan switch the first time? Over heating issues?
     
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