It's going to be hard to tell low refrigerant from other faults. So even adding 6oz from a WalMart kit can be dicey if the system is full. Toyota had a expansion valve total recall around 95, so even today that part may just decide to crap out on you after a few years (leak, stick shut, etc).
In addition to getting cold, the performance needs to be measured as far as how fast it gets cold. At least some cars will flash climate control light if the vent output doesn't cool a certain degree within 1 minute. Couldn't remember if this was in a Caddy or Chrysler.
If you're sure of slow leaks then your state should allow these consumer cans - at least you are not in
Wisconsin. I'd just add 1/2 bottle (6 oz). If it doesn't improve then take it into a shop for service at ~$100 a pop. There is only so much an owner can safely do. Just don't keep adding or you might need to replace the whole system.
A bursted rubber hose can cost you your eyesight in less than a second.
Quote:
Originally Posted by islandboy57
I've always wondered about those 'recharge kits' - the gen 3.5's AC takes a bit longer to get cold in the past year. However - everything is original and after the air gets cold, it stays cold. Is it wise to perhaps get the rubber hoses replaced (after all, it's been 14 years) and get the system evacuated and recharged? I'm not sure how you maintain an air conditioning system so pardon the n00b questions.
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