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Why is this happening

Tiny
RTYAUCH301
  • MEMBER
  • PONTIAC
I have a 1970 pontiac catalina with the Big Block 400 with 103000 miles this is a daily driver and must be fixed I have replaced the hoses thermosdate and water pump and my car keeps is over heating what could be causing this
Wednesday, December 13th, 2006 AT 6:13 PM

3 Replies

Tiny
CANVIS69
  • MEMBER
  • 131 POSTS
It's most likely a bad head gasket (is it running bad?) Or a bad gauge.
But it could also be any of these if it is just running hot- clogged vents in the radiator, clogged coolant passages, bad fan or pure antifreeze, improper carb settings, or the radiator not pressurizing.
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Thursday, December 14th, 2006 AT 3:32 PM
Tiny
RTYAUCH301
  • MEMBER
  • 2 POSTS
I dont think its the head gasket it runs great just hot I also dont think its the carb because it happened after a dryrotted hosee blew it might be the guage im going 2 buy another
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Thursday, December 14th, 2006 AT 4:01 PM
Tiny
CANVIS69
  • MEMBER
  • 131 POSTS
Could be low on coolant too. But a gauge on a car that old isn't unheard of.
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Thursday, December 14th, 2006 AT 4:08 PM

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