1998 Mustang AC Compressor Leak? - Ford Mustang Forum
 
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post #1 of 3 (permalink) Old 07-20-2006 Thread Starter
 
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Joined: Jul 2006
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1998 Mustang AC Compressor Leak?

Hello.

I have a 1998, 3.8L, V6 Mustang coupe.

It has about 108,000 miles on it but runs good as I try to keep up with the maintenance.

The past few weeks I've been hearing a loud squeak from the engine area.

I've taken it to Pep Boys and EconoLube who both say they "think" it's a leaking AC Compressor that needs to be replaced.

The compressor does have tiny dark fluid spots on it but the air still blows cold. Sometimes I hear the squeak with the AC on, and sometimes with the AC off.

Whether the AC is on or off... when I turn off the motor, after about a 2-second delay I'll hear a loud squeal which fades after a few more seconds.

What do y'all think?

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post #2 of 3 (permalink) Old 07-20-2006
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Joined: Aug 2002
Location: Topeka
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Quote:
Originally Posted by bluefish
Hello.

I have a 1998, 3.8L, V6 Mustang coupe.

It has about 108,000 miles on it but runs good as I try to keep up with the maintenance.

The past few weeks I've been hearing a loud squeak from the engine area.

I've taken it to Pep Boys and EconoLube who both say they "think" it's a leaking AC Compressor that needs to be replaced.

The compressor does have tiny dark fluid spots on it but the air still blows cold. Sometimes I hear the squeak with the AC on, and sometimes with the AC off.

Whether the AC is on or off... when I turn off the motor, after about a 2-second delay I'll hear a loud squeal which fades after a few more seconds.

What do y'all think?

could be . . . did you check your other fluids?


Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
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post #3 of 3 (permalink) Old 07-20-2006
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Joined: Feb 2005
Location: Atlanta
Posts: 5,633
 
Clutch

Might be your ac clutch is going bad. On older AC units, it was possible to just swap out the clutch - not sure about your unit. This will get steadily worse until the clutch seizes completely, ending the life of the unit (and probably your fan belt as well).

If you look at the inside of your fan belt with the motor turned off, you may be able to see short, shiney sections. These are where the belt is being polished by the pulley (whichever one it is) locking up. This is not a "Certain" indicator, since modern serpentine belts have ridges, but it may be something you can look for.

Less likely: Could also be a water pump about to fail (if the pump locks up and stops, that makes a squealling noise).

Finally, it could just be a pulley failing. Are you running underdrive pulleys?



Quote:
Originally Posted by bluefish
Hello.

I have a 1998, 3.8L, V6 Mustang coupe.

It has about 108,000 miles on it but runs good as I try to keep up with the maintenance.

The past few weeks I've been hearing a loud squeak from the engine area.

I've taken it to Pep Boys and EconoLube who both say they "think" it's a leaking AC Compressor that needs to be replaced.

The compressor does have tiny dark fluid spots on it but the air still blows cold. Sometimes I hear the squeak with the AC on, and sometimes with the AC off.

Whether the AC is on or off... when I turn off the motor, after about a 2-second delay I'll hear a loud squeal which fades after a few more seconds.

What do y'all think?

tripleblack

"You can never be free until you let yourself go."
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