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Trouble shooting

agatch on Tue June 16, 2009 7:54 PM User is offlineView users profile

Year: 1993
Make: Saturn
Model: SL2
Engine Size: 1.9
Refrigerant Type: 134a
Ambient Temp: 91
Pressure Low: 45
Pressure High: 350
Country of Origin: United States

I got my system closed off, I pulled a vacuum, the vacuum stayed at 28 in/mg for 3 hours, pulled it for another 30 minutes, then recharged my system with two cans of R134a with UV leak detector, 12.3 oz. 24.6 oz in total, slightly less due to purging the lines and reconnecting ect.
After refilling though the high side rapidly rose and after shutting off the car the low side hose blew. What should I be on the look out for as to the cause?

Chick on Tue June 16, 2009 8:13 PM User is offlineView users profile

Make sure your condenser and radiator fins are clean, your fan(s) working properly, as far as the hose, did it blow off the fitting, or the rubber part, was it rubbing against something? did you flush the system? why did you have to recharge it, what was the original failure?

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

agatch on Tue June 16, 2009 8:22 PM User is offlineView users profile

Lets see.
Radiator and condenser fins are clean as could be, and mostly unbent/unblocked. Fan is working fine.
The hose split along the rubber, 6 inches up past the suction port.
It was not rubbing.
I did flush the system, with Mineral Spirits and lots and lots of compressed filtered air.

As for why, it was orginally R-12, but the car didn't run for 2 years due to a bad valve, which I thought was a total engine failure due to what I was told by a mechanic, of which I found out was just a valve. Got the car running, but the AC wasn't used during that time, and it simply didn't work when I restarted the car.

Chick on Tue June 16, 2009 8:39 PM User is offlineView users profile

Then it could be just a case of a bad hose..Happens...

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

agatch on Tue June 16, 2009 8:51 PM User is offlineView users profile

K I was just thinking the High side pressure was kinda high, But I'll replace the hose and see. Thanks again.

Chick on Tue June 16, 2009 9:04 PM User is offlineView users profile

Your high side pressure is a little high, make sure you don't over change the system, but I doubt that it had anything to do with the hose when the system was off... Use only Virgin R134a, no additives, sealers etc..other than the UV dye already in the system...

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

agatch on Tue June 16, 2009 9:56 PM User is offlineView users profile

Well I appreciate it, I can't find the sticker that tells the system poundage,
but from what I could research it's supposed to be 36 oz R12, and what I read here it should be 75-80% of that which puts it at almost 2 cans of juice. And yeap, I know, no sealer, no extra oil, no more dye, no small children.

Thanks again.

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