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02 Dodge 3.7 V6 Idle problem

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  • #1

    02 Dodge 3.7 V6 Idle problem

    Idles fine when cold. When engine gets warmer it dies on idle. Throttle body is clean. PCV is fine. Is it the IAC unit I should replace or can it be cleaned? Check engine light is not on. Battery is old. Any help would be appreciated. Thanks
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  • #2
    It's a dodge idle problems are built in from the factory.
    "It's another burrito, it's a cold Lone Star in my hand!"

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    • #3
      If the battery is bad they can cause idle issues on dodges. You might have it tested.

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      • #4
        If the battery is bad it usually causes gauges to fluctuate and dash lights to intermittently work. Do gas motored dodges have a battery temp sensor those make the diesel trucks idle weird.
        "It's another burrito, it's a cold Lone Star in my hand!"

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        • #5
          Originally posted by dee View Post
          If the battery is bad it usually causes gauges to fluctuate and dash lights to intermittently work. Do gas motored dodges have a battery temp sensor those make the diesel trucks idle weird.
          They do, under batt attached to the tray.

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          • #6
            Originally posted by JimD View Post
            They do, under batt attached to the tray.
            Same place as the diesel trucks then, I believe they rarely set a code but will give a lot of problems.
            "It's another burrito, it's a cold Lone Star in my hand!"

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            • #7
              I changed the battery today. Only drove it a few miles but did seem to idle ok.

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