I smell antifreeze? Causes?

I drive a 1992 ford with 108,000 miles. I recently had everything in the cooling system replaced (radiator, all hoses and lines, thermostat & gasket) I drive about 140 miles a day and my truck is starting to smell like antifreeze coming from the ac, I take perfect care of my truck, engine has been steam cleaned it's spotless, and I do not see an obvious leak? And all the stuff was changed about 3 weeks ago

Check the heater core in the dash pass side

Leak in the heater core.

Being 23 years old I say check your heater core (too).

The heater core may be the source of the odor. But it's rare that they leak. And the leak may be hidden. Check that all hose clamps are tight and the radiator cap is secured. After driving the vehicle, park it in a clean spot where there's no other drippings from other cars (oil, antifreeze, etc). Let it sit for about 30 minutes, then check under the car for any obvious signs of a leak. Then go from there.

Hi so what about the heater Matrix buried deep within the dashboard that has coolant running through it and when they leak as they eventually do with a ford truck. The cost of replacement is what sees the end of the truck. Then some disconnected fine in the summer time but come winter no heat in the cab.

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