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Discussion Starter #1
Hello again everyone,
During the past 2-3 weeks I started to get a weird metal scraping noise coming from the driver’s side engine bay. It’s especially audible at idle. It’s been getting louder lately. It seems to be coming from something being driven by the belt. The car still perform the same, motor temps are good, AC is blowing nice and cold and I don’t have any leak... yet.
My first thought was the water pump bearing starting to go bad. What do you think? I can get one from Rockauto for like 80$ Canadian.

Thanks for your help,

Nicolas
 

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Jack up the right side of the car. Remove the tire. Start the engine, with emergency brake on. Take a stethoscope probe Listen to the tensioner pulleys and water pump.
 

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Discussion Starter #6
I’ve got some updates. The problem seems to be coming from a bad AC compressor bearing. I can hear that it’s coming from there and I can see the pulley wobbling a bit.
Thing is I can find the compressor on Rockauto for like 400$ CAD but I know I won’t be able to do the job since it requires specific tools for the AC system. Do you guys know how much it should cost to have it replaced by a good mechanic or even the dealer?
Also, what’s the worst that can happen if I continue to run the car this way?
Thanks again
 

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keep runing: sound will become louder shaft will come apart ,catastofic damage with belt etc,more money.
repair arround 200-500 us $ plus the compresor.
 

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If you don't mind not having ac, then just remove the belt. Of my memory serves me well it's a dedicated belt for just the ac compressor.
Replacing it is really not that hard. Get yourself a Ebay vacuum pump, about 5cfm rating. You can find them for about 50 pesos.
And a set of manifold gauges.
Swap the compressor. Pull vacuum for an hour and then close the system. Come back in an hour and make sure you still have vacuum. If it's good put refrigerant and oil if the compressor didn't come pre oiled.
I’ve got some updates. The problem seems to be coming from a bad AC compressor bearing. I can hear that it’s coming from there and I can see the pulley wobbling a bit.
Thing is I can find the compressor on Rockauto for like 400$ CAD but I know I won’t be able to do the job since it requires specific tools for the AC system. Do you guys know how much it should cost to have it replaced by a good mechanic or even the dealer?
Also, what’s the worst that can happen if I continue to run the car this way?
Thanks again
 

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Discussion Starter #9
Good point. And that vacuum pump will be one more tool added to my arsenal. ? I have an LKQ shop nearby. I’ll see if they have a recycled compressor for cheap. Else I’ll buy a new one.

Also, do you guys know a guide for the removal of the compressor? I don’t mind having to drop the engine if that’s the case.

Thanks again ?


If you don't mind not having ac, then just remove the belt. Of my memory serves me well it's a dedicated belt for just the ac compressor.
Replacing it is really not that hard. Get yourself a Ebay vacuum pump, about 5cfm rating. You can find them for about 50 pesos.
And a set of manifold gauges.
Swap the compressor. Pull vacuum for an hour and then close the system. Come back in an hour and make sure you still have vacuum. If it's good put refrigerant and oil if the compressor didn't come pre oiled.
 

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Does you AC still work. Leave it along. Live with the noise. Turn up the radio. Wait till it finally fails. Find a qualified automotive AC specialist. To replace and charge your system.
 

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Discussion Starter #11
Yes it does still work as good as before, but the scraping metal on metal sound is terrible lol
It’s getting louder and louder.
I may try and push its life until next summer by removing the belt at the end of this summer so I don’t have that awful noise all winter ?

Does you AC still work. Leave it along. Live with the noise. Turn up the radio. Wait till it finally fails. Find a qualified automotive AC specialist. To replace and charge your system.
 

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By ignoring the problem, you could make it worse. removing the belt is a inexpensive way to disable it, but it will affect the defroster setting which uses the A/C to remove humidity from the air that is used to defrost the windshield. It can also make the compressor seize as it does not get lubrication when it doesn't turn, and can cause the clutch (on the compressor) to corrode.

In the end, it is your car and you can do what you feel makes the best use of your resources.
 

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Discussion Starter #13
Indeed. I just went for a ride and the noise is getting worse. I’ll remove the belt tomorrow morning while I look for a deal on a compressor. I’ll also shop around for a vacuum pump and gauges.
I don’t mind the current compressor seizing since I’m gonna trash it but I really don’t want to break anything else.

Thanks everyone for your suggestions, I really appreciate.

Nicolas

By ignoring the problem, you could make it worse. removing the belt is a inexpensive way to disable it, but it will affect the defroster setting which uses the A/C to remove humidity from the air that is used to defrost the windshield. It can also make the compressor seize as it does not get lubrication when it doesn't turn, and can cause the clutch (on the compressor) to corrode.

In the end, it is your car and you can do what you feel makes the best use of your resources.
 

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I have had some similar experiences. Unless you have a lot of free time and nothing better to spend it on my guess is that chances are you will waste much time and not get far. From a practical point of view I would suggest finding a pro.
 
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