Question about 1990 Buick LeSabre

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1990 Buick La sabre

How many lbs. in the freon re-charge?

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R12 2.40 lbs.
134a 2.00 lbs
Depends if your car is converted from r-12 to 134a. It likely converted because r-12 is banned in the US.

Posted on Jul 19, 2008


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I have ingaged my ac clutch i cant get the air cold i have put freon in it but it wont take more that 35 lbs any ideas

I sure hope you don't mean 35 lbs of freon !
When the ac compressor is running, the low side will read 30-45 psi under normal conditions. The high side should be around 250psi.
You need to be able to check both low and high to see if the system is full of freon. It holds around 4 or 5 cans total depending on make and model. Thats about 3 lbs.

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What is the high pressure reading for charging freon for the air condition?

For charging purposes, you really should be monitoring the low side pressure. Depending on ambient air temperature, the low side should be between 30 and 50 lbs PSI. The high side can be between 135 and 330 lbs PSI.

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What freeon goes in 2000 grand prix?

It is safe to say that 134 a freon is for this vehicle,and it is ready to charge,no retor fits are needed,If this was helpful,please rate,thank you.

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What type of freeon is used for 2003 dodge durango- r-134 or r-12

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1 Answer

Air condition blows hot air but it has freon

You may have created an over charged condition and at this point the a/c compressor will cut off on high head pressures. This can be verified by installing gauges to the systems high and low side service taps and reading the pressures.An overcharged system will start the compressor briefly but soon cuts off once pressure goes to 350 - 400 lbs on the high side. Acceptable pressures for this system should be no greater than 250 high and low suction should drop to 40-50 psi.You might recover the charge and evacuate the system,then try bringing the charge back to proper level.A sight glass in the reciever drier really helps determining proper fill.Once all bubbles have dissipated from the sight glass during charging ,one should stop at that point to avoid overfilling.Too much freon is worse than a low charge especially in hot ambient conditions....

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How many lbs. of freon for 2000 chevy silverado 2500 5.3ltr.

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