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I have a 2008 that is having AC issues. The car has 219000 miles on it. I have already replaced the AC relay and did a recharge, although I think it could use more of refrigerant oil. The symptoms are that the AC is very slow to come on (it can take up to 2 minutes to engage) and when it does the fan surges and then slows down. The unit is blowing cool air and it seems to be adequate. It seems to be working way too hard.

Anyone have any suggestions as to what could be wrong with the unit?

Thanks.
 

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Could be a lot of things.
Do you intend to just keep guessing and throwing money at it ?

Sometimes paying what seems like a really high price for some work at a qualified shop ends up being cheaper than trying to do it yourself.

This also could be an early sign of the HV battery failing.
If you have not had to shell out for any major repairs yet, it might be time to trade it in before you waste a LOT of money on it.
 

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Could be a lot of things.
Do you intend to just keep guessing and throwing money at it ?

Sometimes paying what seems like a really high price for some work at a qualified shop ends up being cheaper than trying to do it yourself.

This also could be an early sign of the HV battery failing.
If you have not had to shell out for any major repairs yet, it might be time to trade it in before you waste a LOT of money on it.
So your advice is take is take it to a dealer or sell the car because his AC is slow to engage? humm.



You could pay someone $100 to empty your AC lines and refill propperly with the right amount of oil and gas. Can you force the AC on sooner by turing on max air?
 

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So your advice is take is take it to a dealer or sell the car because his AC is slow to engage? humm.
Two different things are in play here.

I think he probably should get professional help with fixing the AC.
That might end up being cheaper in the long run.......and it certainly should be quicker.

THEN.....he has a car that is 11 years old with more than 200,000 miles on it.
It is likely that other things will be failing soon; some minor and some major.
Now is a good time to consider if it is really worth putting much money into it.

While some people are perfectly capable of fixing almost ANYTHING that goes wrong with an older car, most owners really are not. One needs to be realistic about the situation.
 

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Two different things are in play here.

While some people are perfectly capable of fixing almost ANYTHING that goes wrong with an older car, most owners really are not. One needs to be realistic about the situation.
Yeah I guess everyone has their own feelings on older cars. I have a 2002 4runner with 250k miles(runs great) and I bought a used prius with 233k miles(now has 237k and runs great). Im not really afraid of used toyotas as ive seen just as many issues happen on lower mileage cars and many more prius go to over 300k+ with little to no issues.

Just take care of them and keep up on the maintenance.
 

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How about checking the air conditioning system? If there is a leak, it must have happened before the system started working. However, you need to check all connections and insulation. It's crucial to ensure that the condenser is not clogged (although this is unlikely since the refrigerant is circulating in the system). Some sensors could be causing the problem. If you can't find anything, you should remove the dashboard and check the air conditioner in the dark. Then turn the car on and check when it is running, if there is any problem, you'll see it. Try to find a cheap aircon installation service. Of course, it'll take some time, but it's the fastest way to find the cause.
 
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