The 98 Blazer doesn't have a Thermal Expansion Valve... it has a fixed orifice tube.
Yes but, it is called an orifice tube.
The ERG valve is located on the front of the engine on a 1998 Chevy Blazer V6 4.3L. It is near the top bolted to the intake manifold.
The expansion valve, on your 1998 Honda Accord, is located just before the thermostat housing. You can follow the water hose from the radiator to the expansion valve.
in the low side hose by the condenser
Remove the bottom hose from the evaporater at the firewall, pull out the expansion valve, i highly recommend flushing out the system to remove excess sludge. Replace the valve and the hose.
The ac system on a Ram doesn't use an expansion valve. It uses a fixed orifice system.
There is no expansion valve. There is an orifice tue. It is located in the inlet tube of the evaporator core.
It is located inside the evaporator case.
The 1998 Blazer could have several problems causing rough idle. Check the air filter, fuel pressure, and EGR valve for a clog to look for the problem.
Assuming you're referring to the AC system, there isn't one... as far as I know, all model years of the Blazer (K5, S10, and the midsize model replacing the S10 Blazer when the full sized Blazer became the Tahoe) used a fixed orifice tube.
Inside evaparator case under the passanger side dash
The 1997 Chevrolet blazer modulator valve is located on the firewall in the engine compartment. The valve will be on the passenger side of the firewall.