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Re: 95 S10 Heat/Vent problem
If you are getting snow inside the outside vent is not closing.
How long has the heat been acting up?
Things to check first is good engine vacuum to heater controls.
Always check the vacuum ball and hoses and plastic lines to and threw it.
Check for a broken plastic line.
Does your heater switch good from defrost to dash air vent to floor heat?
Does it switch good from hot to cold?
If all of that is good find the outside air vent and see if door is opening and closing.
Also it could be froze up with ice or water or tree leaves.
If you can get it in inside garage and warm it up good.
Good Luck and let us know how it goes.
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Remember proper testing gives us the answer to many problems.
MT
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