I'm trying to replace orifice tube on the liquid line, looks like I need to remove the brake booster to get access to the fittings, how do you get the booster off. There are no nuts inside the car and I can only see one on the outside and can't even get to it, or is there some other way to get to it?
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If you are not somewhat mechanically inclined you should let a professional do this as the AC coolant will be released.You will have to re-charge the system upon completion.Here are some quotes from on-line mechanicsto give you a better idea what you are looking for.The Orifice tube can be determined as faulty when your AC doesn\'t cool properly in the summer or heat well in the winter.Often you will smell antifreeze inside your car\'s interior.
"It\'s buried pretty good. It\'s in the liquid line that runs along the left inner fender well, under the brake booster. If you look closely at the line, you will see a connection and dimples in the line where the tube is located."Quote from ASE: Wrenchtech Aug 2011.
The liquid line is located in the area of the abs pump.
"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," below is an example of 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."---Dennis Weid
Mastercool 92311 Deluxe Orifice Tube Repair Kit This 5 piece universal kit will remove and install any style orifice tube.
Another suggestion comes from Ronnie Bennett Sr.:"The orifice tube will be on the small line joining the evaporator, the ac line will be swelled where the orifice tube is at, you may not see it, but use needle nose pliers to remove it, and to install it."
But I would look at YouTube for a better understanding of what you are looking for, how it works and how to remove and replace it, so try this site to start with and look further.You\'ll be surprised the amount of data available and a video is worth a zillion words.
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
nope you have to replace them.when brake booster diaphram leaks you cant plug them.i have bought one at salvage yard in good shape.until i got a new one.get your brake booster from inside salvage yard where they stock them inside out the weather.dont take any brake booster off old outside cars been in all kinds bad weather. there vacuum diaphram probably dried up will leak also.
REMOVAL PROCEDURE -Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. -Remove the air cleaner assembly. -Remove the vacuum brake booster. -Remove the condenser tube. -Use J 26549-E in order to remove the expansion orifice tube. IMPORTANT: DO NOT use any solvents or chemicals to clean the porous plastic inlet filter of the expansion orifice tube. -Inspect the expansion orifice tube for the following conditions and clean or replace with a new tube as indicated: -Broken plastic frame (1); replace the tube. Inlet filter (3) damaged or plugged with fine gritty material; replace the tube. Inlet filter (3) coated with metal chips, flakes, or slivers; remove the coating with low pressure shop air ONLY and reuse if the filter is cleaned satisfactorily. Do NOT reuse the O-ring seals (2).
IMPORTANT: Lubricate the new O-ring seals (2) with mineral base 525 viscosity refrigerant oil. If you reuse the orifice tube, install new O-ring seals (2). Carefully grasp the edge of the expansion orifice tube (1) without touching the inlet filter (3) and insert the expansion tube into the condenser tube until fully seated. -Install the condenser tube. -Install the vacuum brake booster. -Install the air cleaner assembly. -Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging. -Leak test the fittings of the component using J 39400-A.
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.
I followed the liquid line from the evaporator , back towards the condenser & quickly lost it it behind the power brake vacuum booster . The line was cold , with the A/C running .
I followed the liquid line forward , from the high pressure service port , towards the evaporator . I lost the line under the ABS module / assembly .The line was warm .
The orifice tube had to be some where in between , under the other stuff .
I finally found a crude picture of this entire liquid line . I could see , in the picture , where the orifice tube was .
I bought a little round mirroe on a telescoping handel . With it and a flashlight I finally could see the V orifice tube . It is tucked away to the right of the vacuum brake booster ( looking straight at the booster ) in the corner formed bu the fire wall , fender and wheel well .