Found the orifice tube. See post 5 below.

Hey everyone, maybe someone could try to explain this. As far as I was aware, there should be an orifice tube in the firewall connection for the evaporator. I have the whole A/C system apart and I can't find the orifice tube anywhere. Or at least where I thought it was supposed to be. Does anyone have any idea what's going on here?

Here's a picture.

Evaporator Tubes

There's nothing in there. Am I not looking in the right place or is the orifice tube actually missing here?

Thanks for the help.

 

I imagine they have done away with them due to being prone to clogging and a better mouse trap. I don't know what it is but I have some mechanic abilities and I would be in over my head doing that.

 

I imagine they have done away with them due to being prone to clogging and a better mouse trap. I don't know what it is but I have some mechanic abilities and I would be in over my head doing that.

Whats wrong and what are you trying to do??

 

According to ALLDATA and Autozone they haven't done away with the part. I was under the impression that it was neccessary. ALLDATA shows the location for it, and several other threads have reffered to it.

My A/C system sprung a leak at the manifold connection to the compressor. I replaced the manifold lines, the accumulator, and I'm trying to replace the orifice valve before I charge the system, but I can't find it.

 

UPDATE: PROBLEM SOLVED

I was looking at the hard line that runs from the evaporator to the condenser and i noticed a small squeeze in the line just before it meets up with the condenser connection. I decided to open the line there, and it turns out the orifice valve is right there.

I took a picture of where it is for other people to reference so they don't have to struggle looking for it like i did haha.

Orifice Tube

 

Aha! THERE it is.

Thanks for posting. I assumed they had done something else.

I have always thought Ford A/C systems in any Ford rig I've had or been in have ALWAYS had the best coldest air.

 

I've always had good luck with the A/C in both my Fords (02 F150 and 03 Cobra). The F150 would have been fine had the manifold line not rusted completely through.