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Peterbilt 378. Where is the orifice tube located?

I have a 2001 pete air works sometimes i cant seem to find the orfice tube is it located in the evaporator or on the ac core ?

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txslim55

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Call the dealer they assist u free of charge.

Posted on Jun 24, 2015

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2 Answers

Where is the orfice tube on a 2000 jeep wrangler


It is located in the AC compressor liquid line which is the smaller of the 2 AC lines under the hood, the liquid line connects to the inlet of the AC evaporator core

Jun 28, 2017 | Jeep Cars & Trucks

1 Answer

Our front ac is not working and back is cold in our 1999 GMC suburban, we tried putting freon and it didn't work


Dual zone front/rear ac systems have 2 evaporator cores. And 2 orifice tubes, which are just inline
filters. Either your front evaporator core or orifice tube is probably stopped up.

Sometimes you can get to the evaporator cores without removing them from the vehicle, and clean it.
Evaporator cores do get stopped up sometimes, because the blower motor pulls in air with dust and debris from outside, and the air is cooled when it passes through the evaporator core.

But evaporator cores are a nightmare to replace, you usually have to remove lots of stuff under the dash and lots of stuff under the hood to remove them.

Aug 12, 2011 | 1999 GMC Suburban

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Where is the orifice tube on a 2002 ford expedition?


For a 2002 ford expedition the ac orfice tube is located in the evaporator core, remove the lower line to core and look inside , using a needle nose pliers pull tube out. heres a picture of the orfice tube, take note of which way the tube comes out and make sure the new one goes in in the same direction, good day.johnjohn2_91.jpg

Apr 03, 2011 | 2002 Ford Expedition

2 Answers

Orfice tube location


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

Jul 19, 2010 | 1995 Chevrolet Lumina Apv

1 Answer

Hey I am haveing a problem with My 2500HD ac system. I have changed The Condensor, evaporator, and the Compressor. I have charged it to the correct levels. It blows cool air, but it doesn't get cold....


Did you change the Receiver/ Drier and the Orfice Tube/ Expansion Valve? The Receiver/ Drier takes moisture out of the system and the Orfice Tube/ Expansion Valve controls the Hot/ Cold air. If that is bad it may not be opening or closing fully which would not let your A/C get as cool as it supposed to.

Jun 25, 2010 | 2005 GMC Sierra 2500HD 4WD

1 Answer

Location of oriface tube


It is located in the inlet tube to the AC evaporator core, the tube in deep inside that inlet, the small AC hose (called the liquid line) from the compreessor is what is connected to that inlet tube of the evaporator core, the evaporator core is what cools the air

Jun 24, 2010 | 1989 GMC S-15 Jimmy

1 Answer

Where is the air conditioner orpheus located on a 2002 GMC Yukon XL ?


it will be on the liquid line near the evaporator core housing with a double nut union attaching two lines together
disconnect those nuts to remove the orfice tube

Jun 05, 2010 | 2003 GMC Yukon XL

1 Answer

Where can i find the orifice tube on a 99 olds intrigue


the fixed orfice is located at the high side ac line where it goes into the evaporator core at the firewall. u will most likely need a special tool to get it out without ruining the evaporator intlet

May 27, 2010 | 1999 Oldsmobile Intrigue

2 Answers

Where is the orifice tube in a 1994 mustang


The A/C evaporator core orifice is located in the condenser to evaporator tube

Oct 07, 2009 | 1994 Ford Mustang

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I need to replace the ac evaporator on a lincoln continental 2001


you have to remove the instrument panel first.

SECTION 412-03: Air Conditioning 2001 Continental Workshop Manual
REMOVAL AND INSTALLATION Evaporator Core Removal
NOTE: The evaporator core is serviced as a core and housing assembly. The evaporator core, internal doors, seals and door linkage are included with the housing. Transfer the blower motor and wheel assembly, heater core and cover, dash panel seals and vacuum actuators to the new housing.
  1. Remove the rear seat airflow duct (18C420). For additional information, refer to Section 412-01 .
  1. Remove the instrument panel (04320). For additional information, refer to Section 501-12 .
  1. Drain the coolant from the radiator so that the coolant level is below the heater core (18476). For additional information, refer to Section 303-03 .
  1. Recover the refrigerant. For additional information, refer to Section 412-00 .
  1. Loosen the screw and disconnect the electrical connector from the powertrain control module (PCM) (12A650).
  1. Disconnect the heater water hoses (18472) from the heater core.
  1. Disconnect the vacuum supply hose.
  1. Disconnect the condenser to evaporator tube and the evaporator to accumulator tube spring lock couplings from the A/C evaporator core (19860). For additional information, refer to Section 412-00 .
  1. Disconnect the evaporator housing electrical connectors.
  1. Remove the nuts and the washers at the cowl panel.
  1. Remove the screws and the A/C evaporator housing.
  1. Remove the screws and the metal cover.
  1. Remove the screws and the A/C electronic blend door actuator.
  1. Remove the A/C air intake flue damper assist spring (19917).
  1. s1e~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not attempt to bend any part of the A/C damper door shaft (19A580). It is brittle and will break.
    Depress the locking ramp and remove the A/C damper door shaft from the air temperature control door shaft.
  1. s1e~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not attempt to bend any part of the lever. It is brittle and will break.
    Remove the A/C evaporator case outlet door shaft (19B752).
  1. Remove the A/C tube dash panel seal (19B588) and the A/C evaporator drain tube seal (19B739).

May 12, 2009 | 2001 Lincoln Continental

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