Anti-freeze is backing up into the reservoir and overflowing

Tiny
MYYOUT
  • MEMBER
  • 2001 HONDA CIVIC
  • 4 CYL
  • 2WD
  • AUTOMATIC
I recently changed the radiator and heater core due to leakage. Whenever I drive, even short distances, the anti-freeze backs up into the reservoir and sometimes overflows. I have to regularly siphon the reservoir and pour the anti-freeze back into the radiator.
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Thursday, January 1st, 2015 AT 12:49 PM

1 Reply

Tiny
HMAC300
  • EXPERT
Check for an air lock or a bad radiator cap
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Thursday, January 1st, 2015 AT 3:27 PM

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