installed additional coolant valve

[AJ'sDad]

I bought the AC valve from www.dieselsite.com and installed it yesterday. I installed it in the line from the rear heater core before it goes into the "T". It came with a "T" for the vacuum line too. The only thing I needed was about 6" of larger vacuum line to install onto the factory valve. The installation only required one cut on the truck.

Now, when I turn MAX AC on it closes the factory valve plus the new one which stops the crossflow between the front and rear heater cores.

I don't have a thermometer for precise readings, but the MAX AC is definitely colder.

My next step is to insulate the charge lines from the compressor to the evaporators.

[CHPMustang]

[ QUOTE ]
I bought the AC valve from www.dieselsite.com and installed it yesterday. I installed it in the line from the rear heater core before it goes into the "T". It came with a "T" for the vacuum line too. The only thing I needed was about 6" of larger vacuum line to install onto the factory valve. The installation only required one cut on the truck.

Now, when I turn MAX AC on it closes the factory valve plus the new one which stops the crossflow between the front and rear heater cores.

I don't have a thermometer for precise readings, but the MAX AC is definitely colder.

My next step is to insulate the charge lines from the compressor to the evaporators.

[/ QUOTE ]
You got on it pretty quick [img]/ubbthreads/images/graemlins/smile.gif[/img]

You just need the digital thermo probe for the dash vent [img]/ubbthreads/images/graemlins/cool.gif[/img]

[AJ'sDad]

I know, I need to do that.

I don't know when I'm going to use all this massive cooling power though. It's only 73F outside today and isn't supposed to reach 90F until next week. I guess I should be thankful.

[Bruce1954]

[ QUOTE ]


My next step is to insulate the charge lines from the compressor to the evaporators.

[/ QUOTE ]

I am assuming you ment the suction line, (the cold ones)

We need all the cooling we can get on the "charge lines" from the condensor to the evaporator.

I don't think you will gain much but it may be worth a try you might try some of that foam pipe insultion from your home improvemnt store.

Some suction lines I have seen do have an extra layer of insulation on the hose portion not sure I have seen much on steel tubing but it would make more sense to insulate that and not the hose.

Let us know

Bruce

[CHPMustang]

[ QUOTE ]
We need all the cooling we can get on the "charge lines" from the condensor to the evaporator.
I don't think you will gain much but it may be worth a try you might try some of that foam pipe insultion from your home improvemnt store.
Some suction lines I have seen do have an extra layer of insulation on the hose portion not sure I have seen much on steel tubing but it would make more sense to insulate that and not the hose.
Let us know


[/ QUOTE ]
Bruce and all,I've pretty much have outdone myself with the AC outside of installing a second compressor for the rear [img]/ubbthreads/images/graemlins/grin.gif[/img]

Here's my latest Photo Album with the AC mod work completed.

I started on it all in early summer 2003 and just wrapped up the compressor work a month ago.

The results have been outstanding! [img]/ubbthreads/images/graemlins/cool.gif[/img]

-Bill

[carlos]

I checked my chestnut 2001 psd x and I have this valve but
no vacuum connected to it. There is no lose vacuum line anywhere
around. Does anyone know where to connect this to? I know the
max position ac switch closes the damper door-where is this vacuum line. Is it the one just rearward of the condenser?

[AJ'sDad]

I'll have to pop my hood and check exactly, but the vacuum line is grey with black plastic/rubber on the tip and comes from the blower box.

[Zaphod]

I havn't checked for the valve, but I realized last night that my PSD EB 'X with climate control doesn't have a 'MAX AC' setting. It has the 'MAX AC' behaviour when set to 60F (which is what max ac did on my old navigator) ... but no MAX AC button.