03 KJ 3.7 5spd - TPS/IAC/TB

Discussion in 'How To' started by AniSabii, Sep 16, 2019.

  1. AniSabii

    AniSabii New Member

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    Want to clean/replace:
    throttle position sensor
    throttle body
    idle air control

    Difficulty? Recommendations? Clean or replace?
     
  2. LibertyTC

    LibertyTC Well-Known Member Staff Member Moderator

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    Do you have any codes or engine light on? Is the Jeep running poorly?
    You can try cleaning first.
    IAC- See post #10 onwards.. https://www.jeepkj.com/threads/idle-air-control-no-screws.44826/
    With the Jeep parked (off) it is easy enough to spray some carb cleaner into the intake, by opening throttle plate, to clean things up.
    Expect the IAC & the interior port to be real dirty.
    Tps port generally is not too bad.
    I eventually replaced the IAC and TPS with Mopar parts.
     
  3. AniSabii

    AniSabii New Member

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    Thank you!
    I read more in the FSM and it looks like if I do the IAC/IAT/TB/MAP/TPS I may as well do it all at the same time.
    You recommended carb cleaner to clean the parts, and grease for seals?
     
  4. LibertyTC

    LibertyTC Well-Known Member Staff Member Moderator

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    I only use carb cleaner on the IAC and Port as Throttle body cleaner is not strong enough.
    As long as a throttle body is not Teflon coated, it is ok to use carb cleaner on the aluminum intake.
    MAP & MAF sensors be careful how you clean them and consider MAF senor friendly cleaners, don't soak them.
    I use silicone spray for seals.
     
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  5. AniSabii

    AniSabii New Member

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    thank you!