1989 Toyota T 100 Causes Antifreeze Pump Back Into Resevoir Radiator

1989 TOYOTA T-100
210,000 MILES
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ANONYMOUS
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  • 1 POST
what causes antifreeze to pump back into resevoir from radiator?
Apr 3, 2013 at 4:59 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
When trans fluid cools, it expands. That is what causes it to return to the coolant overflow.
Apr 3, 2013 at 5:01 AM
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