Question about 1998 Ford Explorer

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My 2003 Explorer overheats when I turn the A/C on.

When I turn the A/C on, on hot days (over 90) the engine temp, starts to climb after a few min. If the outside temp is in the mid 80"s the system works great.

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To much freon in system could cause it to onerheat,

Posted on Jul 06, 2010

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Q: Temp starts to climb by how much? If the vehicle interior is hot"over 90" , keep in mind the heat in the vehicle is being absorbed by the a/c and carrued out to the "condensor" in front of the engine radiator. Engine temp should be expected to climb somewhat. As the interior cools down the less heat is taken to the font and forced through the engine radiator. It should peak out ,then staer deopping or stabilize. On initial entry of vehicle on hot days it would help to open the windows for a mile or so to purge excessive heat from passenger compartmentw/AC OFF. OUTSIDE CAN BE 90 AND THE INTERIOR OF A CLOSED UP VEHICLE CAN CLIMB TO 120 DEGREES + mID 80'S IS HANDLED WITH GREATER EASE FOR A COMBINATION OF TECHNICAL REASONS OF WHICH WOULD BORE YOU.It sounds like all is well so be cool(pun) and don't waist money chasing a ghost. Happy trails. Oh, The auxillary fan is good to speeds up to 35 mph. Above 35 the forced air from the vehcle speed does the fans job.

Posted on May 11, 2009

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