Car overheats with the air conditioning on

Tiny
COKER83
  • MEMBER
  • 2004 FORD FOCUS
  • 2.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 166,000 MILES
My car overheats with my air conditioning on after two or three miles of driving, but when I'm parked with my air conditioning on my car doesn't overheat. I've had a coolant flush, new water, new pump, installed new radiator, clean my condenser fin, my fans work. It doesn't overheat unless the air conditioner is on.
Sunday, July 28th, 2019 AT 12:39 PM

1 Reply

Tiny
BMDOUBLE
  • MECHANIC
  • 1,139 POSTS
I would perform a cooling system test with a block test kit which uses a blue fluid in a clear cylinder that mounts on the filler neck of the coolant bottle or radiator. It turns a different color if exhaust gases are in the cooling system due to either a head gasket failure or a crack in the head or block.
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Monday, July 29th, 2019 AT 3:37 PM

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