Radiator

Tiny
JEFFBEGUD
  • MEMBER
  • 1995 CHEVROLET TRUCK
  • V8
  • AUTOMATIC
  • 190,549 MILES
Radiator does not flow proper while engine is running with cap off, but it pulsates up and down on the inside?
Tuesday, December 7th, 2010 AT 2:21 AM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
When the thermostat is closed, the coolant would not flow. When the radiator cap is not closed, pulsation would occur unless the thermostat is opened. System operates under pressure so the radiator cap has to be closed.

If you do not have overheating issues, there is nothing to worry about.
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Tuesday, December 7th, 2010 AT 3:59 PM

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