Ok you have to remove your all the parts of your dash. When this step is done, you gonna see a plastic black box, remove this one (3 Screws). Under this one you can see your heater core.
When this step is properly do, open your hood. Look on your firewall (Up Passenger Side) and remove all bolts, remove the 2 heater hoses. Remove your heatercore and replace it, Redo all of this step inverse for reinstallation! Good luck!
(Sorry my english, im not the best in this language!)
But before you replace it...
If you think it may only be clogged, turn heater controls to full open/hot. Then turn off engine. Disconnect heater hoses under the hood. Connect a short hose to the "input port" to carry dirty water away from your engine. Connect another hose to the "output port." Shoot water from a hose-end sprayer into the "output" to backflush the core. My heater in 98 Blazer had quit heating. I just had to wash the crud out it it worked fine afterward. (it was going to be a BIG job to take off enough dash parts to get to the core to deal with it)
with your hands
how to replace a heater core on 1994 impala ss
The exploded view of a 1996 Chevrolet Blazer IFS can be found in the service manual of the vehicle. If you do not have theÊservice manual, it can be obtained from the nearest Chevrolet dealership.
Your 1996 Chevrolet Corsica cooling system. Remove the water supply line and the water return line. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
Inside the fuel tank
It should have a relay
According to thie following article, it is 5000# http://www.johnholt-chevrolet.com/testdrive-review.aspx?year=1996&make=Chevrolet&model=Blazer
I believe it is in your glove compartment there is an access to your flasher.
The computer (ECM).
That's what I am asking you. How do you replace a parking brake handle on an S-10 1996 Chevy Blazer?
The firing order for a 1996 Chevrolet S10 Blazer is 1, 6, 5, 4, 3, 2. The number one cylinder is on the front right as you face the engine.