No air on driver vent only

[_nickjoseph]

If it’s coming out behind the blower, then two things come to mind:

The entire case is split in half horizontally and the factory included a thin RTV type gasket between the halves. You may be able to block the leak with some duct tape (the silver kind that they use for sealing up air handlers).

Or, check the engine side firewall and see if you feel air coming out where the two evaporator lines go through. There’s a foam gasket that goes around the lines to seal the holes in the part of the casing that surrounds the evaporator. That may have deteriorated, but replacement requires pull the box.

Yes I feel sorry coming out by the lines as well. What can I do to seal it up. Silicone ?

 

[east302]

Maybe just try some tape first to see if it improves things. The holes in the case for the lines aren’t huge so there wouldn’t be a huge air loss through there but every little bit helps with these things.

 

[_nickjoseph]

Maybe just try some tape first to see if it improves things. The holes in the case for the lines aren’t huge so there wouldn’t be a huge air loss through there but every little bit helps with these things.

Tape what? I feel the air coming from the outside by the evap lines and under the blower and by the floor vents

 

[east302]

If air is escaping from the evaporator housing through the holes for the evaporator lines into the engine bay, then seal those up the best you can.

Photo below shows the foam gaskets that are sandwiched between the air box and the interior firewall. If those gaskets are shot, air could leak from the air box out through the firewall into the engine bay.

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[_nickjoseph]

If air is escaping from the evaporator housing through the holes for the evaporator lines into the engine bay, then seal those up the best you can.

Photo below shows the foam gaskets that are sandwiched between the air box and the interior firewall. If those gaskets are shot, air could leak from the air box out through the firewall into the engine bay.

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Can I put silicone in there?

 

[east302]

I suppose so as long as the silicone didn’t get into the box.

 

[_nickjoseph]

I suppose so as long as the silicone didn’t get into the box.

How should I do it? Just go from the outside?

 

[east302]

Yes, if you have cold air blowing into the engine bay, the foam is probably just torn. Just dab it on from the engine side and seal it up.

 

[_nickjoseph]

I suppose so as long as the silicone didn’t get into the box.

Water leaks in from here and air comes out

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[east302]

I’d tape that since the opening around the line is a little large. Use water resistant duct tape or something like that flex seal stuff from the infomercials.