Question about A/C

[Schrade]

Originally Posted by MT-2500

Them one hose stop and go gauges do not tell you squat.
I sure hope you have not put any of that stop leak or oil crap in your system.
How did you come by the gauge from one of them?
Give us your low and high side pressure readings at idle ad at 2000 RPM with compresser running.

If you are getting water on drivers side in floorboard the drain is stopped up.

And say no to them Wal Mart DEATH KITS

You cannot properly and safely recharge an air condition system with them.

The one side stop and go gauge does not tell you what your system is doing or is over charged or undercharged.
A overcharged or malfunction air condition system can reach over 500 lbs of pressure.
Enough to blow up that can or system and freeze you at first and the burn you or blind you and if any propane /butane in there blow and light you up.

The stop leak crap and who knows what kind of oil in the kits there will stop your system for sure.
Just like pouring super glue in it.
And some kits even contain freon with a butane mixer.
Good for a big blast.

If you are going to do it do it right and safe.
Here is what you need to start with.
http://www.ackits.com/merchant2/merc...uct_Code=66773

In the older days you could just throw in a can and go.
But over the years just adding freon is getting harder to do.
Newer systems have to have the correct amount of freon down to the ounces.
Most will need pumped down and vacuumed down and the right and amount of oil and a set amount freon charge installed to get the air to cool right and the system to last.
If an air condition is low there is usually a leak that needs fixed and also a lose of lubricating oil from system.
Also air and moisture enters a low system
If you are going to try to do it get the proper type air condition gauge set with the low and high side gauges.
Hook up the gauges and get a reading with compressor running at idle and at 2000 rpm on the high and low side.
Post back pressure reading and we can help you.
MT

You're saying a lot that's negative, and all is not necessarily correct.

I've done a re-charge on 4 late-model vehicles, with only the off-the-shelf stop 'n' go gauges, and have not had one detonate yet. That included a conversion of my 87 vette from R-12 to R-134A. I had absolutely no problem with it afterward...

[sharkmonkey]

Originally Posted by MT-2500

Them one hose stop and go gauges do not tell you squat.
I sure hope you have not put any of that stop leak or oil crap in your system.
How did you come by the gauge from one of them?
MT

I didn't add anything to this vehicle. I had the gauge left over from a kit I used on a different car, which worked just fine, and blows very cold AC.

I'll check the filter and other stuff when I get a chance. The van just started stalling at idle today so I have to get that problem figured out first. Thanks for the input.
MARK

[MT-2500]

Originally Posted by cbec1999

You're saying a lot that's negative, and all is not necessarily correct.

I've done a re-charge on 4 late-model vehicles, with only the off-the-shelf stop 'n' go gauges, and have not had one detonate yet. That included a conversion of my 87 vette from R-12 to R-134A. I had absolutely no problem with it afterward...

Well what part do you see that is not correct?

If you want to do some homework on AC here is a very good link.
http://www.autoacforum.com/
Ask them about the death kits and cabin filters not letting a drain drain.
MT

[MT-2500]

Originally Posted by sharkmonkey

I didn't add anything to this vehicle. I had the gauge left over from a kit I used on a different car, which worked just fine, and blows very cold AC.

I'll check the filter and other stuff when I get a chance. The van just started stalling at idle today so I have to get that problem figured out first. Thanks for the input.
MARK

10-4 idle problem.
First things first.
If you are going to recharge or check the ac charge you need on of these to safe and do it right.
http://www.ackits.com/merchant2/merc...uct_Code=66773
The stop leak crap that is in the kits is the worst parts of them.
http://www.autoacforum.com/messagevi...threadid=15719

Also here is link to a good ac repair forum.
http://www.autoacforum.com/

Let us know how it goes.
MT

[MT-2500]

Originally Posted by cbec1999

You're saying a lot that's negative, and all is not necessarily correct.

I've done a re-charge on 4 late-model vehicles, with only the off-the-shelf stop 'n' go gauges, and have not had one detonate yet. That included a conversion of my 87 vette from R-12 to R-134A. I had absolutely no problem with it afterward...

Read the replys and answers to it to to get the hole affect of what a death kit can do.
MT

http://www.batauto.com/cgi-bin/Forum...ber=37789&pid=

[Jack Bobaganoosh]

Originally Posted by cbec1999

Gosh Jack...

How much freon in the line has absolutely zero to do with water in the floor pans.

If the evaporator freezes up (and impedes airflow) and then subsequently melts, then water could end up in the cabin. Like I said, I have seen it on home units, and they will flood the surrounding area when they melt.

[sharkmonkey]

Alright, I found out the wire that goes to my knock sensor was burnt. New wiring harness and labor = $255.

Now, does my van have an in cabin filter? It's a '99.
MARK

[Schrade]

Originally Posted by sharkmonkey

Now, does my van have an in cabin filter? It's a '99.
MARK

Open your glove compartment. You'll see an access door (for a 2000 Venture). I'm guessin' a '99 has the access in the same place - if equipped.

[Schrade]

Originally Posted by MT-2500

Also air and moisture enters a low system

This I think might not be correct...

Although possible, it seems to me that even on the low side of a running system, the pressure is still higher than atmospheric [surrounding] pressure, which makes entry of atmospheric gases and moisture unlikely.

Now, if the compressor has little freon on the low side to fill the high side, then I guess it might draw into the low side line (from a leak) some atmospheric gases, including moisture. But I bet the system would turn off before then...

[MT-2500]

Originally Posted by cbec1999

This I think might not be correct...

Although possible, it seems to me that even on the low side of a running system, the pressure is still higher than atmospheric [surrounding] pressure, which makes entry of atmospheric gases and moisture unlikely.

Now, if the compressor has little freon on the low side to fill the high side, then I guess it might draw into the low side line (from a leak) some atmospheric gases, including moisture. But I bet the system would turn off before then...

You need to make another trip to ACKITS.com
Remember the last time.
MT