Stong coolant smell

[DonnyD]

Have been noticing a coolant smell in the cab lately which is defintely getting stronger. No obvious leak or strong smell is noted in the engine compartment so I am beginning to believe that the heater core or heater valve may be leaking iside the unit itself. Any ideas on how to confirm or fix this short of a total teardown???? Any repair guides that would show this repair??? Thanks for the help.

[Tom Kenney]

If you turn the temp selector to 'hot' and the fan selector to 'defrost' do you get fog on the inside of the windshield? If so, probably a heater core.

Good luck. Mine is an older model, so heater core was an easy swap. From what I've read here, the newer ones are a real pain in the a$$ to get at.

[hmustang]

sounds like your heater core is leaking.

[Dennis]

I vote for heater core too. I learned a long time ago that you have to change your coolant every two years. If you don' t the heater core will fail.