T3 Corolla is sucking engine fumes into the car like it's trying to end our lives. It's when the car is not moving and the heater fan is on. Even to the extent, that if there is no wind around outside and we are stopped at lights; we are turning the fan off whilst we are stationary.
The felt seal at the bottom of the steering column where it goes through the floor is disintegrated, but would that be enough to cause such a problem ?