Engine coolant leak

135,000 MILES • 6 CYL • FWD • AUTOMATIC
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DREA2496
  • MEMBER
  • 1 POST
Could it be my heater core? My car is leaking the coolant but we cannot find the leak and we smell radiator fluid.
Jan 25, 2011 at 12:40 PM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,397 POSTS
If you smell it inside, look for a puddle about a foot behind the right front tire and toward the middle of the car. That's where it would drip out of the air conditioning drain hose if the heater core was leaking.

You may need to use a cooling system pressure tester to pressurize the system, then look for a leak. As a last resort, you can add a small bottle of dye to the coolant, drive it a little, then use a black light to search for bright yellow stains, including the tail pipe.

caradiodoc
Jan 25, 2011 at 3:39 PM
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