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1995 Toyota Corolla coolant overflows

Tiny
YAZO
  • MEMBER
  • 1995 TOYOTA COROLLA
  • 1.6L
  • 4 CYL
  • 2WD
  • MANUAL
  • 220,000 MILES
Hello, I have a problem with the coolant in the coolant bottle that over flows when the car drives for a long period. But the heat gauge is normal running temp and never over heats but spills the coolant into the water overflow. I have checked thermostat and all pipes I have even flushed and filled the radiator the radiayor flows fine too. But still does the same. I have done a head test buy the liquid changes colour very slightly a hardly noticeable colour change. What could possibly be my problem
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Thursday, January 22nd, 2015 AT 1:25 PM

5 Replies

Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
Does the oil in the engine look normal? IT could be that your cap is bad. Its not allowing the system to build up pressure (raise the boiling point), and is causing the coolant to boil. Could also be that you have an air pocket. Try leaving the cap off and running the car with the heat on and kepp checking the coolant till it reaches operating temp (thermostat open).
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Thursday, January 22nd, 2015 AT 1:38 PM
Tiny
YAZO
  • MEMBER
  • 3 POSTS
Hi johnny thanks for your response I have bought a new cap and oil looks normal I have tried removing the the cap letting it run with the heater on.
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Thursday, January 22nd, 2015 AT 7:44 PM
Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
Have the symptoms gone away since putting on the new cap?
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Saturday, January 24th, 2015 AT 3:56 PM
Tiny
YAZO
  • MEMBER
  • 3 POSTS
No still the same
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Sunday, January 25th, 2015 AT 7:54 PM
Tiny
JOHNNYT73
  • MECHANIC
  • 924 POSTS
I think you may need to take the car to a pro to have your cylinder head checked.
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Sunday, January 25th, 2015 AT 7:59 PM

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