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
Yes
HOW TO GET A PULLEY OFF A 1998 CHEVY BLAZER
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