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A gasket could be the cause of a Jeep Cherokee engine to whistle when it's cold. Check the throttle body gasket to see if it needs to be replaced.

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9y ago
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16y ago

Sounds like the cooling fan doing its work. To protect the engine and cooling system, many fans stay on for a short time after engine switch off.

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12y ago

the HVAC blend doors are either broke or on their way to being broke. I was told by a dealer it was a $1400 dollar repair

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Q: What causes Jeep Cherokee engine to whistle when cold?
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