Can someone please tell me where to find the air blend door on a 1998 Chevy Blazer? My heater only blows barely warm air and I've been told it is probably a problem with the blend door.

I have the exact same problem with my 98 blazer. If I find out what is going on I will let you know and I hope you will do the same.

Thanks.

Tim

Don't just look at the air blend door. Don't know where it's located. But, my 98 Blazer had the same problem last year. The problem was an air pocket in the heater core. Yours could be getting clogged and only letting a little coolant thru it. When was the last time the coolant was flushed?

Just had this problem.

First I thought it was due to low coolant. Well some of it was.

Look at the temp gauge when it's warm. Mine was up at the first big while line half way to 210*.

Swapped out the thermostat. Warm air galore now.