Unfortunately the entire dash must come out to replace that unit.
how to replace a heater core in a 1997 Chevy blazer
Unfortunally you need to remove the entire dash assembly in order to gain access the the blend actuator. Consider replacing the heater core while your in there only because the amount of work involved to do it later if it should leak.
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The 1997 Chevrolet blazer actuator switch is located on the firewall in the engine compartment. The switch is on the passenger side of the engine compartment.
it is located on the passenger side wheel well...it has 4 hoses attached 2 going into the heater core and 2 going into the engine...simply disconnect the hoses and replace with new heater valve
You will need to remove the anti-freeze from your 1997 Chevrolet Venture cooling system. Remove the water lines from the heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
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The 4x4 actuator is screewed into the front differential housing towards the passanger side, It has electric wires going to it,
It does not have one. It has a 4x4 Actuator in the front housing.
Could you please tell me if a 1997 Chevy Venture has a heater control valve and if possible the location of the valve.
The heater core resembles a small radiator.