Question about 1997 Pontiac Bonneville

2 Answers

1998 buick regal - where is the orifice tube located

How do I access the tube once I find out where in L it is ??????

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

Tools Needed:
13mm Socket - to Remove cross brace above airfilter box
10mm Socket to remove Air Box
11/16 openend wrench to hold one end of ac line coupler
15/16 wrench to turn the AC line brass nut

1:) - Recover R134a Refriderant Low side by firewall center (Black Cap)
Highside by Air filter Box (Driveside)
2:) Remove cross brace
3:) Remove Air Filter
4:) Remove Cover from Airbox Box (S.S. Latch)
5:) Pull rubber gromet from above Computer cable
6:) Lift out Computer & Set out of way.. No need to remove wires
7:) use 10mm socket to remove the three bolts in the bottom of Air Box
8:) lift out air box (Good time to wash out)
10:) On the condenser lower line remove using opened end wrenches listed above. (Condenser Lines: Drivers Side by radiator)
11:) Now the fun part. Follow the line towards the rear of the engine compartment. Unhook the sensor connector. Keep following this line you will go past the Highside test port loop & when you see the brass nut up by the firewall remove this line (Use same open end wrenches). The part it's connected to will move some because you unhooked the line up front (Right). Once you get it off look in the part that you unhooked the line from.
12:) Grasp the end of the orfice with a needle nose pliers & pull out. Note orentation of the orfice. If you drop just look for your plier marks.
13:) Oil new orfice o-ring w/ PAG oil & replace. Also replace the other two o-ring w/ new ones. Again oil o-rings w/ PAG oil.
14:) Reverse to assemble. The Line nuts do NOT need to be very tight.
15:) Evac. system & charge with 134a & use the amount on the label. Mine was 1.88lbs = 30.08oz.
16:) Your Welcome!! Ron

Posted on Jun 10, 2012

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 51 Answers

The a/c orfice tube if thats what you want it will either be in the inlet line going into the condenor or it will be the hose from condenser to accumulator

Posted on Jul 22, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Location expansion valve

There is no expansion valve. There is an orifice tube in the high side hose where it connects to the evaporator inlet fitting. You'll have to let the freon out first to open this connection. Use needle nose pliers to grab the orifice tube. If the screen is plugged with aluminum mud, there are more serious problems with the system that will have to be addressed. Of you don't have the tools , a vacuum pump and a gauge set, I'd let a A/C shop do the job.

Aug 15, 2014 | 2001 Buick Regal

1 Answer

Where is the orifice tube located to put a new one in?

The orifice tube is located inside the liquid line where it connects to the condenser. This line is located on the passenger side of the car and has the low side charge port on it. this line unscrews right where the orifice tube is located... Hope this helps

Sep 08, 2012 | 1992 Buick LeSabre

1 Answer

1993 buick century orifice tube

The orifice is located at the inlet tube to the evaporator core on the firewall, just suction the system out and remove the pressure line to the evap core, it is right there.

Aug 09, 2012 | 1993 Buick Century

2 Answers

Where is the orifice tube on a 98 Buick LeSabre located?

not exactly sure but using info below you can find it.

Remember the flow for the a/c system is :
1. From the compressor a high pressure (HP) gas goes to the condenser in front of the radiator.
2. From the condenser a HP liquid goes to an expansion device (orifice tube or expansion valve)
3. From expansion device the low pressure gas enters the firewall to the evaporator.
4. From evaporator the low pressure liquid/gas mixture goes through the dryer2_bing.gif back to the compressor suction.

There will be about a 1" nut on the low pressure line between the firewall and the compressor. Remove nut and on the male side use a pair of kneedle nose pliers and remove orifice tube. Note orientation of tube.

Replace tube, reassemble, evacuate air from system, recharge with freon.

May 29, 2010 | 1998 Buick LeSabre

1 Answer

Where is the washer pump, Buick regal, 1998, how to change

i believe the washer pump is on the bottom of your reservoir,have to remove the bottle to access the pump

Jan 17, 2010 | 1998 Buick Century

1 Answer

1994 Buick Regal. Can't figure out where the orifice tube is! 3800 actually a Gran Sport

The orifice tube is located in the liquid line from the condenser to the evaporator at the fitting on inside left front fender.c95498c.gif

Jun 21, 2009 | 1995 Pontiac Bonneville

1 Answer

Where is orifice tube located on my 1994 Buick regal?

Hello cptlarry: My name is Roger and I can help you. On the passenger side of the engine compartment. Locate the high side A/C line. This will be a small line called the liquid line. Follow it to the condenser located in front of the radiator. After removing the freon you can split the A/C coupling at the radiator. There are two lines split the one that goes back to the firewall. The orifice tube will be in the condenser end of the line.
Should you need further help please just ask. Please rate the quality of your answer as this way we know you received the correct information. Thank You for using Fix Ya. Roger

Jun 20, 2009 | 1995 Pontiac Bonneville

1 Answer

1996 Buick Regal air conditioning

I think you may have a clogged orifice tube (possible compressor failure starting) this can be checked with a system pressure test.
When an expansion valve or block fails, always replace the drier. Also flush the condenser and liquid lines.

May 03, 2009 | 1996 Buick Regal Olympic Gold

Not finding what you are looking for?
1997 Pontiac Bonneville Logo

1,596 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

79077 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides