The controls that direct the air flow to the defroster, to the vents and to the floor are vacuum operated. You may have a vacuum leak causing your problem. Check under the hood for broken, cracked, disconnected vacuum lines.
Yes, the doors from a 98 Chevy Blazer will fit a 2001 Chevy Blazer with a little moderation.
Through the dipstick tube
Yes.
The windows on a Chevy Blazer may not roll down if the power window mechanism has been damaged or broken. This can be repaired through a reputable mechanic.
can I put a 99 Chevy 4l60e transmission in my 86 k5 chevy blazer
my Chevy blazer power seat on my 1996 Chevy blazer isn't working
Fit 96 grill in 95 blazer
HOW TO GET A PULLEY OFF A 1998 CHEVY BLAZER
Yes
Where is the horn located on a 1993 chevy blazer
An alternator from a 2000 Chevy blazer will fit a 2002 S10 blazer with a little fabrication.
1996 Chevy blazer timing chain