How do I locate and replace the expansion valve on my 03 Accord coupe? Do I have to take down the dash; or is it behind the glove box? Does anyone have a detailed list, video or/and photos of how to do this?

Thank you so very much.

 

Here is the correct forum for your question to get answered..

WheelBrokerAng

 

Ok, I appreciate the response but I'm a little confused. I'm trying to get DIY directions for my 06 accord expansion valve. Which thread am I supposed to post to and how do I get the directions if someone posts them and where? I don't want to violate any forum rule but this stuff is confusing. Please help me with this.

 

Just start threads with your car repair questions in the general tech help area.

What is happening with your a/c system? What diagnosis and work have you done on it so far?

 

This link has pretty much the info. you are looking for. But, even in this link, the problem actually turned out to be the blower motor power transistor for the guy afterward. You probably want to pretty sure before trying to replace the expansion valve.

Honda accord: expansion valve..these parts as well as a diagram - JustAnswer

 

Good advice from PA & Redbull. You don't want to do this unless you're sure the evaporator or expansion valve are leaking or faulty.

What are your symptoms?

If you're sure of diagnosis, heres a thumbnail of repair.
1) Recover refrigerant
2) Disconnect suction and receiver lines from evap core from engine side of firewall.
3) Remove blower unit
4) Remove evap temp sensor
5) disconnect power transistor and remove self tapping screws from the expansion valve cover
6) Pull the evap core and plate (skid) carefully

Before attempting, I would purchase a shop manual for your car. Check automanualsource.com for an inexpensive download manual.

good luck

 

Thanks for the responses everyone. My return line from the compressor to the condensor has broken. The compressor is also making a loud winding noise. The bearings must be bad. I know it's the compressor because every other thing with a bearings on that side has been replaced. If I run the car for a sec without the belt on the sound is gone. While running with the belt on, placing a pry bar on the compressor delivers the loudest sound when pluting it to my ear.

I wanted to replace the expansion valve because it was in the compressor kit I bought. They said they wouldn't warranty the compressor if I didn't replace other components including the expansion valve.

The A/C worked great prior to the return line breaking. Maybe I shouldn't mess with it. It seems very extensive. what do you think?

 

Its not too bad to replace the components. You have to disconnect the two lines to the evaporator from the engine bay, then you will have to remove the evaporator unit from under the passenger's dash. Then you take apart the evaporator to get to the expansion valve.

Did all of your R134a leak out?

 

Line from compressor to condensor is discharge line. Line from evaporator to compressor is suction. Both lines have lengths of aluminum tubing.

If compressor is whining after the system leaked down due to tubing defect, then compressor idler bearing is worn out. Apparently you have bought a replacement compressor so bearing fault doesn't matter.

I would be tempted to leave evaporator and expansion valve alone, but if warranty requires this perhaps it's worth the extra effort. Unlikely to yield any benefits and could result in problems. Replace all orings and take your time.

Get a Honda shop manual!

good luck

 

Yea, all of it did leak out.