Question about Ford Mustang
When I turn my 1997 ford mustang off, There is a high pitched squealing noise. I have been told it is coming from the ac system but can't find it. Any ideas?
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Posted on Jan 02, 2017
Seems like a drive belt problem, to confirm pour some water on belts the noise should go away or may get louder for a second. If either happens the belt or belts needs to be adjusted or replaced. Good Luck, If I fixed ya, leave me a FIX-YA comment thanks
Posted on Dec 18, 2008
There may be a small hole or cut in a vacum line or possibly just loose. Also make sure the air filter box and the big hose to it are secure and clamps etc are tight. Pulleys and belts can make a high pitch sound also.
Posted on Mar 22, 2009
The seal on the AC compressor has probably failed and allowed all the refrigerant and lubricant to be lost. This allows the bearing to run dry and now it is failing and making noise.
1. You could have the AC repaired, the compressor repaired or replaced and the system refilled.
2. You could have a mechanic disconnect the system and possibly remove the compressor (only if this model does not use a belt that relies on the compressor being in place).
3. It is probably way too late to try to refill the AC system with R134a refrigerant as it would just run out past the failed seals.
If anyone has an AC unit that just recently stopped making cold air they should attempt to recharge the unit (if it uses R134a - check your manual or underhood stickers). I just did and saved my compressor and AC unit from further damage.
Posted on Jun 17, 2009
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