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2002 Mazda 626 Engine overheating when A/C unit is running

Tiny
MIRI01
  • MEMBER
  • 2002 MAZDA 626
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 80,000 MILES
I purchased a used 2002 Mazda 626 about 1 year ago and recently it has been overheating when the a/c unit is used. I replaced the water resevior which had a crack in it and there are no leaks from radiator, what could be the cause of this?
Thursday, June 19th, 2008 AT 6:18 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi miri01,

Are the radiator and condenser fans working?

Did you check the coolant level in the radiator?

If yes to both the above, you might have a weak water pump, partially stuck thermostat, clogged coolant passage or radiator.
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Sunday, June 22nd, 2008 AT 11:44 AM

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