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Mark42 · 02-07-2010, 06:56 PM

I had been getting a smell of antifreeze sometimes when starting the car when it was hot. Never noticed it when the engine was cold. But I could never find an obvious leak, drips or any noticeable loss of fluid.

Well the other day I started the car hot with the hood opened and sniffed around for the odor and finally found it. It was the heater hose connectors. Grabbed them tight and pushed while twisting to force them on tighter. After that there has been no more odor of antifreeze.

Hopefully, this info might save someone else the frustration of looking for the cause of antifreeze odor.

I have no idea why GM decided to use such specialized hoses and connectors. Anyone know why?

02-07-2010, 06:56 PM	#1
Mark42 Join Date: Oct 2009 Posts: 443 iTrader: (0)	Found source of the Antifreeze odor. I had been getting a smell of antifreeze sometimes when starting the car when it was hot. Never noticed it when the engine was cold. But I could never find an obvious leak, drips or any noticeable loss of fluid. Well the other day I started the car hot with the hood opened and sniffed around for the odor and finally found it. It was the heater hose connectors. Grabbed them tight and pushed while twisting to force them on tighter. After that there has been no more odor of antifreeze. Hopefully, this info might save someone else the frustration of looking for the cause of antifreeze odor. I have no idea why GM decided to use such specialized hoses and connectors. Anyone know why? __________________ 1998 Firebird Coupe Mods: 3.73 Gears, Eaton TrueTrac, PCM Tune, LS1 Aluminum Drive Shaft, Cold Air Intake, 180 Thermostat, Magnaflow Cat-Back Exhaust, Moog LCA busings. My Firebird Projects : Click Here