I cannot find the place to put r134a in my 1998 Chevy malibu ls
Follow the Accumulator (round silver cylinder) low pressure hose to the fire wall. You will find the low pressure service port valve just before the fire wall.
Make sure you don't over charge the system, add small amount at a time and check the temperature every 3 min to 5 min by placing the A/C on max with the engine at 2000 RPM.
Once the temperature coming out of the vents are cold as ice with the engine at 2000 RPM. stop charging. So turn the recharge valve on for 20 seconds and then off then rev the engine to 2000 RPM for 3 min and check the temperature at the vent.
Once the temperature is ice cold, stop and don't over charge the system. Over charging the system will cause the A/C compressor to shut down and at worst break, causing a $500.00 repair cost.
Good luck and thank you for using fixya.
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