Tahoe Coolant Leaks

242,990 MILES • 4WD • AUTOMATIC
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WLPOLITE
  • MEMBER
  • 2 POSTS
How do i know its' my heater core. I have a 95 chevy tahoe; fluid is leaking not from the core but from a hole at the firewall next to the hoses coming into the core. There are two hoses and one other with a rubber hose that bends at a 90 degree angle. After driving the truck and parking it, fluid leaks from this other (3rd) tube. Is it the heater core or something else?
Aug 4, 2011 at 10:25 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Bingo heater core coming out of Evap/core assembly drain tube. Sounds like the drain for the heater core if it were to leak the third hose that comes off the fire wall has a 90 degree elbow facing down not connected to anything if so its the drain for the heater core. Can you smell coolant inside? Sounds like a bad heater core. If that were one of the hoses just not connected it would leak all the time.
Aug 4, 2011 at 10:38 AM
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