go to website coloradok5.com and look in their tech section. they have very detailed instructions on changing a heater core in a Blazer....should be exactly like your suburban. its kind of a pain but worth the money you'll save over paying someone else to do it.
You have to completely remove the dash to get access to the heater core.
how to replace a heater core in a 1997 Chevy blazer
where is the heater control valve on a 1994 2500 suburban
NO.
How do you change a tire on a 2000 chevy suburban
no
Disassemble the dash and open up the HVAC compartment.
The heater core on a 1985 Chevy Suburban is located under the dashboard on the passenger side of the vehicle. The glove compartment may have to be removed to access the heater core.
Same as a 96 blazer go here.How_do_you_replace_the_blower_motor_on_a_1996_Chevy_blazer
Where is the thermostat on a 1997 chevy suburban and how do you change it?
1996 Chevy blazer timing chain
The 96 Chevy Blazer does not have a timing belt.