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IAT < Help, Location in 1991?

Discussion in 'General Explorations!!' started by ExploderBlues, December 3, 2002.

^^Searches ExplorerForum.com^^





  1. ExploderBlues

    ExploderBlues New Member

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    Can someone please tell me where the IAT is in a 1991 Explorer? I looked at pic in Haynes, still can't gigure it out. My MAS tubing doesn't seem to be the one in the picture. Still trying to get rid of pinging while accelerating in OD.....Thanks
     
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  3. mdrut

    mdrut Well-Known Member

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    IAT=????
     
  4. Rhett

    Rhett Let Them Eat Cake Elite Explorer

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    You mean Intake Air Temperature sensor? 1991's don't have one.

    1995 and later I believe..


    have you tried removing the manifolds and retorquing and re-gasketing them? This fixed the pinging I was getting.
     
  5. Maniak

    Maniak Moderator-Stock 91-94 Staff Member Moderator Elite Explorer

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    Last edited: December 4, 2002
  6. diablo5969

    diablo5969 Well-Known Member

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    Are the IAT and the IAC the same thing?
     
  7. Maniak

    Maniak Moderator-Stock 91-94 Staff Member Moderator Elite Explorer

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  8. SteveVB

    SteveVB Elite Explorer

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    ACT? or ECT?

    in 91 you only have two temp sensors on the engine the ECT- Engine Coolant Temperature sender, or the ACT - Air Charge Temperature sensor.

    The ECT is on the front of the manifold just above the t-stat it has two wires, the single wire smaller diameter sender next to it is the coolant temp gauge sender- Ok so its a third temp sender.

    The ACT is threaded into the upper intake manifold - driverside- between the IAC(bypass solenoid) and the vacuum tee.

    Good Luck
     
  9. Maniak

    Maniak Moderator-Stock 91-94 Staff Member Moderator Elite Explorer

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    The ACT is also called the IAT.. same thing.. just different name.. (if you go to Autozone and ask for an IAT they will know what it is.. but not if you call it an ACT)

    ~Makr
     

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