2nd Aug 2011, 18:41

The anti-freeze smell, as you probably know, is caused by the o-rings. The test is to look behind the passenger side carpet near the center console; on the firewall you should see green soot. Usually there is not a leak, but just gas that deposits on the carpet. You should also build and install a plastic shield over the ECM. That is right below the o-rings to the heater core. Just reach in from the driver's side and place your hand on the flat part as far forward as you can get on the center console near the firewall. If water gets into that box, you are talking real money. The o-rings cost about $3.00, but to install them you need to pull out most of the dash. Very hard and complex, and getting it back together is a real challenge.