According to the service literature I am looking at, for the 97 Chevy 1500....
In the C & K series 1500 pickup, it is located at the outlet of the condensor. On the U series it is in the condensor to evaporator lines near the high side service valve or the support clamp. On the G, P, L, M, S, and T series it is at the inlet of the evaporator.
It also states that you will need to use the special tool orifice tube installer remover part number J-26549-D or J-26549-E. But I have done many an orifice tube and have never used a special tool. Your call on that.
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It does not have an orifice tube.
Most orifice tubes are placed in the high pressure line to the evaporator at the fire wall connection. You will have to empty the freon from the system to replace the orifice tube which is not very expensive (the tube, that is).
What orifice tube? An orifice tube is part of the AC system pull off the lines going into the accumulator. You'll see it. DoratheExplorer
If you mean an "orifice tube", then yes.
Orifice Tube
in the high pressure line before it runs into the evaporator look for dimpling in the hard line.
Which item is not a component of the breaking system? Master cylinder, break hose, orifice tube, wheel cylinder
The Wrangler uses a fixed orifice system. There isn't a pcv valve. The tube coming from the center rear of the valve cover is the orifice.The Wrangler uses a fixed orifice system. There isn't a pcv valve. The tube coming from the center rear of the valve cover is the orifice.
There is no expansion valve. There is an orifice tue. It is located in the inlet tube of the evaporator core.
If the low side has too much pressure and the system isn't cooling properly that would be one sign that the orifice is plugged up. Removing the orifice tube and inspecting it would be the best way. If the orifice tube is loaded with metal trash, the compressor is probably on its way out. Replace the compressor, accumulator and orifice now before the compressor fills the system with trash, this you don't want to happen.
In the liquid (low pressure) line at the condenser connection.
Its hard to tell exactly, but if you look at the hoses and metal tubes of the a/c system you can tell. Find the small hard line running from the condenser (radiator looking thing in the front) follow it until you find a connector where it goes from that small line to a larger line and your orifice tube will be located there. Hope this helps.