having tough time figuring out why coolant is not recycling back from overflow

2004 DODGE NEON
140,000 MILES
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JMG429
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  • 5 POSTS
heater core was leaking so bypassed it and put in new thermostat. now it seems the over flow fills up and doesnt flow back to radiator. Almost over heated because coolant was low in radiator it burped into o.flow? need to put coolant into rad. but dont want to over fill. pressure in system long after it cools off.
Mar 15, 2012 at 7:01 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
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Check the radiator cap
Mar 15, 2012 at 7:21 PM
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JMG429
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thanks for advice the cap is fairly new but the psi listed is not the same as the original the original was 13 psi this one is 16 is that relevant or should I just try a new cap?
Mar 15, 2012 at 7:32 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Just try a new cap with the OEM part cap rating
Mar 15, 2012 at 7:36 PM
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