Changed out Compressor.... followed instructions (no cold air)

[Gary Crist]

Go back down and rent the oriface puller(make the job easier)
and replace the tube.

W

 

[Gary Crist]

Wellll do you want to take the chance?
If you are willing to chance it fill er up!

Start er up and drop in a can or 2 and watch
the clutch cycle. Run it about 2K RPM.

GL

 

[MrQ]

15oz? You are undercharged. Go ahead and change the orifice tube and then refill to close to the amount that is supposed to be there and check your pressures while idling. You will not get accurate pressures until the system is close to full. T that point add freon a little at a time while watching your pressures.

Being a little undercharged is better than being over.

 

[Gary Crist]

You said it was 95, so douse the condenser
w/ a hose every once in a while to keep high side down
as it recharges

 

[Bob Durant]

Go back down and rent the oriface puller(make the job easier)
and replace the tube.

W

I will.... alas where do I find the tube; before the accumulator? The Chilton book mentions a flare nut, but what I see, is a flared fitting on the line, with some sort of plastic keeper/clamp holding it in place

 

[Gary Crist]

Down on the high side line IIRC.
When you pull it out, tear it apart
and look for metalic debris.

Where is the spell checker? I fix cars not English!

 

[Bob Durant]

Go back down and rent the oriface puller(make the job easier)
and replace the tube.

W

I’ll head out

Down on the high side line IIRC.
When you pull it out, tear it apart
and look for metalic debris.

Where is the spell checker? I fix cars not English!

no debris, all back together.... gauges hooked up... add 134a?

 

[410Fortune]

58 oz?????????????????????????????????????????????????????????????????????????????????????????

Something fishy there
V6 Explorers take like 28-30oz???? (1lb 14 oz = 30 oz)

58 seems excessive my 7.3 excursion with rear ac takes 58 oz....

Did you change out the orifice tube? Was it inserted backwards?

 

[ddenton749]

No charge on the system; changed out the compressor, the accumulator, all the o-rings; vacuumed it out, held vacuum for an hour, replaced the Freon, (not the full amount); a/c clutch engages, shows charged on gauge...
Hot air only....

Tell us more:

What year is your Explorer?

I assume you put R134 in it? I had to convert my '93 to R134. It was never quite as cold after that. If it is a conversion, did you flush out the lines, evaporator and condenser?

Did you replace the orifice tube?

Clutch engages but is it cycling on/off? What is the cycle time?

What are your pressures when the compressor cycles on?

How is your fan clutch?

Are the condenser fins clear?

What is the ambient air temperature where you live?

Does your Explorer have a heater control valve?

Does the interior air switch to floor-vent-defrost?

Does the air get hotter when you move the temperature selector from hot to cold?

 

[1st time Ford]

31 psi high side? You sure? High side is not supposed be the same pressure as low side.

Not a hundred percent sure on third gens where it is or if it was built inside one of the parts your replaced, but did you replace the orifice tube?

List of high side and low side pressures for 134a R134a High and Low Side A/C System Temperature Pressure Chart

He said that the car was not running, therefore the high and low pressure sides should be at equilibrium. The pressure differential only exists when the compressor is running / cycling on and off.

I used to be a VW tech for 20+ years so I am not a Ford expert, but since most systems are similar (all depend on Lussac's gas law), have you checked the high and low pressure switches? Just an idea.

 

[1st gen eddie]

No metal in the system to my knowledge, when I vacuumed it out, it held for over an hour, no change

If the compressor is doing its job? Then I agree with orfice tube. Also did we remember compressor oil? 9 to11 ounces without rear air. Depending on the year your climate control door could be stuck. This will blow hot no matter how well a/c is working.

 

[Gary Crist]

Bob did you get some cold yet?

 

[BUXTER]

I don't see the inexpensive Filter Dryer being replaced here while system was open ($50 or so) - IMO that is BIG mistake - I have several Fords & Lincolns that put out Cold Air in the 30's at center Vent on Recirc w/ Fan on Hi when I first trigger my Infrared Thermometer - If I hold my thermometer on Vent it shoots into the teens REAL quick.

 

[Bob Durant]

If the compressor is doing its job? Then I agree with orfice tube. Also did we remember compressor oil? 9 to11 ounces without rear air. Depending on the year your climate control door could be stuck. This will blow hot no matter how well a/c is working.

I’ll get back to it this weekend.... with my job, I’ve only got the weekend to work on stuff

 

[Pete Deering]

No charge on the system; changed out the compressor, the accumulator, all the o-rings; vacuumed it out, held vacuum for an hour, replaced the Freon, (not the full amount); a/c clutch engages, shows charged on gauge...
Hot air only....The orifice tube is located in the bottom Evap tube(on 95 ) I had to uses a extractor to remove it. My tube had black mud on it. You also need to know what color the orifice tube is. There are three colors used my 95 was red. And it used 30 oz of r134a

 

[Pete Deering]

Go back down and rent the orifice puller(make the job easier)
and replace the tub. I just did some work on my 95 exp. My use a red orifice tube. With 26 oz of 134a, manufacturer state max charge is 30oz. 26 oz got my center vent outlet temperature down to 38 F. My compressor will started to run continuous. The high side pressure should be 2.5 times the ambient temperature. Did you install the orifice tube in the right direction?. Did you pull a vacuum on the system and start the charge from the vacuum state?