I took the Blazer for a little city and hwy driveing today.
Vent temp's were no better than what they were in my driveway,55-60F.
I pulled into the driveway and watered down the condensor.
Otherthan decreasing the preasures and makeing my compressor kick in and out it did nothing for the vents temps.
With watering down the condensor the presures went down to(at idle)
Low-25-30
High-150
They were:
low-40
high-210-240
I read on the net that changeing the size of the FOT may make a difference.
I'll prob. end up starting over and seeing if I can get the PROPER amount of R134A in the system.
My manual says the orig. GM 4 Season A/C system took 3.4 lbs of R-12.
So if I start at 60% of that:
1lb=16oz
3.4x16=54.4oz.
60% of 54.4=32.64
1 can of R134a =12oz.
So I need to start with 2.72 cans
Does that sound right?
Would anyone recommend a change of the FOT.There is a white one in there now.
Is it normal for some oil to drain out of the bottom(inlet) tube of the Evap. core. It did this when I removed the FOT.
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71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension.
Petrolia,Ontario,Canada but working in Port Huron,MI.
See ALL my Blazer pic's HERE
Last edited by BobbyK; 09-25-2005 at 12:13 AM.
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