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Anonymous Posted on Aug 31, 2014

Where is the orifice tube location for a 1997 chevy astro with a 4.3 engine

5 Related Answers

Anonymous

  • 23 Answers
  • Posted on Oct 03, 2008

SOURCE: location of orifice tube in 2004 ford taurus

orfice should be located on the accumulator, where the large line connects.

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Anonymous

  • 3 Answers
  • Posted on Jul 25, 2009

SOURCE: REAR A/C NOT BLOWING COLD ON 1997 CHEVY VENTURE VAN

It is the expansion valve. It is in the rear behind the left rear tire. It is gold in color and in route with the ac lines. Guaranteed fix.
Good luck

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Mar 27, 2010

SOURCE: orifice tube location on a 1995 gmc jimmy

it is located in the high pressure AC line at the AC evaporator core inlet. The high pressure line is the smaller of the two AC lines that come from the AC compressor on the engine..

Anonymous

  • 1102 Answers
  • Posted on Jun 25, 2011

SOURCE: Where is the orifice tube

The orifice tube is part of the Air conditioning system and it's located inside the A/C line that comes out of the evaporator, ( the part that's in the heater box). You will need to remove all the refrigerant to access it. And once you have serviced/replaced it, you have to evacuate the system ( pull a vacum) for 45 minutes to remove any moisture and then recharge the system. Also replacement of the drier/reciever is recommended.

Anonymous

  • 2418 Answers
  • Posted on Aug 04, 2011

SOURCE: Where is the orifice tube

The orifice screen is located in the evaporator inlet tube. mcneb_2.gifHope this will Fix Ya up.

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for step by step details with location and diagrams click the link below:

https://fexya.blogspot.com/2021/06/orifice-tube-location-on-91-chevy.html

this will help.Thanks.
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Wher is the orifice tube location for a 1997 chevy astro with a 4.3 engine

Near the accumulator or front grille. Look for the aluminum line from the accum. and follow it until you see where it necks down with three dimples in the line. You should have a fitting/connection close to where the orifice tube is, that's how you're going to remove it.
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the fixed orifice is located in the inlet tube to the evaporator core, this is where the small high pressure AC line from the compressor connects to the tube sticking out of the engine firewall, u will most likely need a special tool to remove it, here is a web link to the tool, don't damage the evaporator core by trying to remove the orifice tube without this if it is stuck down in the tube.

http://www.google.com/products?hl=en&q=ac+orifice+tube+removal+tool&rlz=1R2ADBF_en&um=1&ie=UTF-8&ei=X4BETJiZC4-esQPw-ajJDA&sa=X&oi=product_result_group&ct=image&resnum=3&ved=0CCsQzAMwAg
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The control module is located just behind the ignition coil. Sorta hard to get to but we got it and the van is running great.
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