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Car is a 2000 DOHC Taurus, SEL with the EATC.

I noticed this sometimes when my car starts up, and luckily it did it while I was recording this time.

http://www.youtube.com/watch?v=LBU1hpMnAGw

AC compressor kicking on? Sounds like something is grinding? When I turn the car off, I don't change anything with the EATC. Usually leave it as is, set at my preferred temp using "AUTO".
 

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On most modern Fords, PCM programming runs the AC compressor for a few seconds immediately after startup to "clear out" any liquid freon in the compressor to prevent "compressor slugging" when the EATC calls for AC.
 

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Yeah, that's true, but it shouldn't be making a grinding noise. My car doesn't make a grinding noise. Mine doesn't have that rev bump either.
 

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I'll make another recording with the camera pointed under the hood, see if I can better capture the noise.

Thanks for the info Jeff B)
 

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It did it again today. AC compressor/clutch related, I heard it right in that area. You never hear that noise otherwise.
 

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QUOTE (Bull Geek @ Mar 3 2009, 10:44 PM) index.php?act=findpost&pid=705204
It did it again today. AC compressor/clutch related, I heard it right in that area. You never hear that noise otherwise.[/b]
the coil and clutch have prob gone bad. i just had to replace mine for a similar noise.
 

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Gap might be a bit to big. Sounds like the clutch kinda grabs and jumps.
 

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Since it isn't doing it everytime, I have time to re(search), and figure out if it's something I can do this job or if I need to take it to a shop. I'm hoping for the former...

The sound only happens at startup...and that's occasionally. Never happens if you turn the EATC on while driving.
 

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I took an AC compressor clutch and pulley off in the Ford FACT course, but it's been a while, so I can't remember all the details. But, IIRC, there are specialty tools required and the compressor must be removed from the vehicle (meaning the system will have to be recovered, then recharged once the compressor is reinstalled). The compressor I worked on was already out of the vehicle.
 

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Pull the belt to make sure it isn't something in the engine.

Mike
B)
 

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