Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
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whistling when turned on

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Old 07-23-2012, 11:39 AM
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Year: 1991
Model: Cherokee
Engine: beefed up 4.0 HO
Default whistling when turned on

My 91 xj makes a really load whistle when it starts and idles really high. The idle eventually dies down to a little higher then normal but that mite be because of the throttle body. My question is what could be causing a load whistling
Old 07-23-2012, 11:42 AM
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vacuum leak
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