I had a wet carpet, antifreeze smell, and fog on the windshield. My mechanic replaced my heater core. Off on and on I still smelled antifreeze but no fog anymore. I waited 2 weeks for the smell to go away. Maybe residue. Then I smelled it strongly with my heat and blower on one night and took i…

Since the heater core has been replaced and you are loosing antifreeze the next probable item for failure would be the hoses, or clamps going to the heater core. It is possible the heater core replacement was a defective unit, and I would start with the mechanic who did the heater core and ask for a…

I think there are two problems: The residual antifreeze odor from the original leak, and the new, stronger smell and possible loss of coolant. Theory for 1): You say “I had a wet carpet,” which means the antifreeze dripped onto the carpet. Antifreeze takes a LONG time to evaporate, which…

If you haven’t already had a pressure test on the system, have that done. i was the only one who smelled antifreeze in my pickup. When my mechanic did the pressure test, a leak in one of the hoses became apparent. Good Luck.

Agree with the pressure test recommendation. If there’s still a leak somewhere, that will reveal it. Otherwise, you’re smelling residual antifreeze stink from what the carpet absorbed. I should add that the coolant reservoir tank might appear low if there was some air in the system, especially sinc…

Thanks for the reply. The mechanic said he?d checked for leaks and I assume that included clamps and hoses but I?ll check on that. Is there a way to check for a defective core other than taking off the dashboard, etc., in effect doing it all over again? As yet the mechanic hasn’t acknowledged a p…

Thanks for the reply. The car is still in the shop. With respect to the carpet, I had a carpet mat on the floor. I took it out after it got wet. Subsequently, after the heater core replacement, I vacuumed the floor a few times. It didn?t seem wet at that time. When I get the car back, I?ll che…

Thanks, I’ll definitely ask about a pressure test.

Thanks, I’m going to ask my about the pressure test. I believe my mechanic filled the reservoir after the core replacement. I saw it was low two weeks later.

Antifreeze smell

Maintenance/Repairs

Joseph_E_Meehan March 13, 2009, 10:05am 10

While I agree with all of the above and you should follow the advice, you may find a dead end, with no new problems. It is possible that there was an air block when the system was refilled after replacing the heater core. That could have explained the apparent loss of coolant.

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Antifreeze smell

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