I think it's time to take a look at your heater core. Seems likely you
have a leak in there. The heater core is in the black box at the back of
the firewall inside the engine compartment. It ain't a lot of fun to
pull the heater box out as you have to disconnect some plumbing and a
cable through the exhaust vent on the passenger (right) side of the
trans tunnel.
Bob Allen
Scott Miller (MSNA) wrote:
>
> Anyone have similar experience or suggestions for what i might look for?
>
> My wife's '74 MGB has recently started sending a light "steam" through
> the defrost vents, doing a great job of fogging them up! I just replaced
> the overflow hose on the radiator thinking that was the possible culprit
> (the hose was cracked where it attached to the radiator) but that made
> no difference. Steam also comes out of the bonnet vent (just before the
> windows) which i can notice when parked (at a stoplight for example)...
> It's not "thick" steam, can't make out any particular taste or smell
> (other than "from the car").. and it occurrs on dry or wet days.
> could it be exhaust?
> leaking radiator (the water level is fine)?
> any ideas?
>
> Regards
> scottmi
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