05 navi high fuel consumption
#2
There will of course be a somewhat increased fuel consumption when using AC as the engine has to drive the AC compressor. If the fuel consumption is massively higher with AC on, it may indicate a problem with the AC, compressor or even idler pullies or tensioner which are failing and giving increased drag when they receive a higher load with AC on.
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ccunni3812
Cooling, Heating, Ventilation & A/C
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galaxie223
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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07-31-2003 09:20 PM