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Engine Hunting

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Old 07-15-2012, 03:48 AM
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Default Engine Hunting
Jeep 4.0ltr - 6 cylinder

When we select hot or cold air in the vehicle, the engine starts hunting.

Any ideas?
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Old 07-15-2012, 07:05 AM
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Originally Posted by pemair
Jeep 4.0ltr - 6 cylinder

When we select hot or cold air in the vehicle, the engine starts hunting.
?????? I'm sorry, I have never heard that terminology used before. What are you trying to say? The motor lags when the air is turned on?
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Old 07-15-2012, 07:29 AM
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Being that there was more than one fuel injection system and ignition system used on the 4.0, it's important that you supply your vehicle info.
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Old 07-15-2012, 08:41 AM
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I think he means the idle bounces up and down, I'd start by checking the vacuum line for the heater valve.
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Old 07-15-2012, 09:52 AM
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he prolly means when he turns on the a/c and heater
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Old 07-15-2012, 11:36 AM
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Originally Posted by pemair
Jeep 4.0ltr - 6 cylinder

When we select hot or cold air in the vehicle, the engine starts hunting.

Any ideas?
PLEASE! Explain what do you mean it's hunting??? Also, Try to be a little more clear on the exact problem you are having.
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