You will need to remove the dash assembly to gain access to the blend door actuator. Recomend purchasing a shop manual of you intend on doing that job.
No.
The blend door actuator can go bad. Big job to replace it. Dash assembly must be removed to gain access to it.
change the alternator batteries
Your 1999 Chevy blazer doesn't have a timing belt.
Will a 1997 blazer what work on a 1999 blazer????? If your talking engine, transmission, or running gear than yes. It is all the same.
There are several seals in that transmission, need to know which one.
You have to completely remove the dash to get access to the heater core.
Mostly, yes.
how to drai torque converter on 1999 chevy blazer
NO. Not even close. Chevy redesigned ALL the TRANSMISSIONS and ENGINES in late 1999. Anything above 1999 WILL NOT FIT anything under 1999.
Take old one out put new one in
no such thing