idle drops and rises only when fan is on...normal?
04-13-2010, 01:06 PM
#1
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Location: Bangor, ME
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Model: Cherokee
idle drops and rises only when fan is on...normal?
i just picked up a 99 xj sport with 158K on it. so far im looking forward to increase my knowledge on these wonderful vehicles. i do have a small problem hopefully its nothing to major. whenever i turn the heat on the car will idle high and then drop down. it will make a click sound near the a/c compressor for a second then rev back down. thoughts?
04-13-2010, 02:04 PM
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Normal. The idle will increase to compensate for the load the A/C compressor puts on the engine.
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