a/c problem
pinhead989
07-12-2007, 04:16 AM
99 chevy blazer 103000 miles... i have no a/c plain and simple but when i got the kit with the gauge it says its in the red which means its on a alert...other than that when i put on the a/c the typical engine bogging down is normal but the compresser only goes on for 2 seconds then shuts off every 10 seconds...if i put it on the vent same thing the engine bogs down and the compresser so nuts...i put it on heat same thing..btw i have heat but no one seems to know what could be the problem? any thoughts would be greatly apreciated
Brian
Brian
MT-2500
07-13-2007, 09:26 AM
You need to check the pressure with the compressor running.
If compressor will not run or kicks on and the off real fast.
It is a sign of a low charge.
If a two wire low pressure switch jumper the two wires together .if compressor does not run then.
Jump the compressor with a fused jumper wire with ac controls off or with ac on and the green hot wire at compressor to controls unplugged.
If you are using a Wal mart type death kit with stop leak and any oil in the R-134a.
It may kill the AC system pitch it and get the pure R-134a with no crap in it.
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/merchant.mvc?Screen=CTGY&Store_Code=01&Category_Code=RefrigerantGaugeSets
http://www.ackits.com/merchant.mvc?Screen=CTGY&Store_Code=01&Category_Code=DIY
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
If compressor will not run or kicks on and the off real fast.
It is a sign of a low charge.
If a two wire low pressure switch jumper the two wires together .if compressor does not run then.
Jump the compressor with a fused jumper wire with ac controls off or with ac on and the green hot wire at compressor to controls unplugged.
If you are using a Wal mart type death kit with stop leak and any oil in the R-134a.
It may kill the AC system pitch it and get the pure R-134a with no crap in it.
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/merchant.mvc?Screen=CTGY&Store_Code=01&Category_Code=RefrigerantGaugeSets
http://www.ackits.com/merchant.mvc?Screen=CTGY&Store_Code=01&Category_Code=DIY
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
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