Question about 2005 Ford F-150

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05 f-150 obd

My truck loses power when you turn on the a/c. Also the OBD light came on last night. Had a shop put it to a scanner and they said it showed a misfire at startup but then nothing. They told me it is most likely bad gas. Would that cause a loss of power with the compressor running?

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Well some power loss when you start the a/c is normal because it is using it to run the compressor. how much power is being lost at a guess. what does your voltage meter read when it is shut off and than when it is turned on?

Posted on Aug 01, 2008

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