I put my defroster on for the first time ever last week and I soon started smelling coolant slightly. The smell has persisted with the defroster off. In the old days, your temperature adjuster operated a valve letting hot coolant flow through your heater core. In modern cars this valve is eliminated and interior temperature is regulated via airflow regulation. Iím thinking that if Fieros have the old fashioned system, my valve may be leaking. This morning was cool and dry and on the way to work I had no ventilation on at all. The windshield fogged up right over the defroster vents once the engine warmed up. Further, the car leaves no puddles and the coolant level has been dropping very slowly. Also the smell of coolant persists inside but I smell nothing outside. It almost has to be the valve or the heater core. Do Fieros have a coolant flow control valve and are they prone to leak?
James Bond 007 Member
Posts: 8745 From: California.U.S.A. Registered: Dec 2002
Thanks for the Link Richjk21. Thatís great. I found the core in stock for $42.99 and those hose clamps will save some time if I donít find the hoses in need of replacement. I checked and my carpet is wet with coolant as expected.