1999 5.4L AC problem

03fordZilla · #1 09-12-2009, 11:40 PM

I have a 1999 f150 with the 5.4L. The AC compressor is making a clanking noise while running. It appears that the pully on the compressor pulled out a little(.25"-.5") only when the engine is running, and there is a steel plate behind the pulley that is rattling like crazy. When you turn the AC on, it still blows ice-cold air, but the noise gets even louder. I think that it might be just the clutch assembly. Am I right? Dad says there is no way to replace it, you have to replace the whole compressor.

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03fordZilla · #2 09-13-2009, 12:41 AM

It seems like the pulley wobbles a little. Please help!?

glc · #3 09-13-2009, 11:56 AM

You will probably get a better response if you posted in the HVAC section, not the powertrain section.

03fordZilla · #4 09-13-2009, 07:37 PM

I have a 1999 f150 with the 5.4L. The AC compressor is making a clanking noise while running. It appears that the pully on the compressor pulled out a little(.25"-.5") only when the engine is running, and there is a steel plate behind the pulley that is rattling like crazy. The pulley also wobbles when the motor is running. When you turn the AC on, it still blows ice-cold air, but the noise gets even louder. I think that it might be just the clutch assembly. Am I right?

cg22 · #5 09-13-2009, 10:32 PM

I would remove belt first and push/pull on pulley, it's possible that bearings may be going on compressor.

Sounds like clutch 2 me too....I heard you can change these while compressor is still on motor. There is a clutch kit available for this.

corvet3640 · #6 09-13-2009, 10:33 PM

post there and search for a/c clutch to find out how to change the clutch!

**Bluejay** · #7 09-13-2009, 10:37 PM

You are allowed only one thread per subject. I merged the two threads. Thanks