AC compressor grinding noise
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Elder User
Joined: Nov 2005
Posts: 788
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From: Cottage Grove, Minnesota
AC compressor grinding noise
Hey all I have a quick question on the AC in my 97 F150 4.6 Scab Lariat 4x4 with 202k miles. A couple weeks ago I went to turn the AC on and heard a grinding type noise from under the hood. That was the first time it did and it just did it a second time yesterday. Could the grinding noise be that the clutch in the compressor is going out? If it is, how hard is it to replace the clutch myself? I am a college student so money is tight.
Thanks,
Jason
Thanks,
Jason
Freshman User
Joined: Apr 2003
Posts: 32
Likes: 0
From: Battle Creek, MI
Similar issue
The noise I have coming from mine A/C compressor is more of a knocking noise, almost like a lifter or engine knock noise, really loud when the air is off. So that may help you in your troubleshooting. Took mine in to shop and they said it was the clutch on the compressor but initially told me the clutch couldnt be replaced individually from the compressor, so it would be $858 for new compressor/clutch and labor. Then I found just the clutch unit at Autozone for $98, so I too am wondering how hard t is to change out. Guy at Autozone said it is hard to change out cause you need special tools to remove/install. Not sure I believe him since all I see is one bolt in the middle of the clutch assembly.
Any pointers out there?
Any pointers out there?
Elder User
Joined: Aug 2006
Posts: 642
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From: Olathe, KS
They, Oreillys, Napa etc... should rent that puller to remove the clutch. There is also a tool to hold the clutch to keep it from turning. You will definitely want the puller. Another avenue might be Harbor Freight or Cummins tool. The pullers are usually not that expensive.
The clutch is a tapered keyed shaft. The bolt you see must be pulled first. That is where the tool to hold the clutch comes in handy. Or impact. Once that is removed the puller is used to remove the actual clutch. There my be a few on here who will chime in with additional details.
It is not a difficult job with the tools, big pain to disasterous without.
The clutch is a tapered keyed shaft. The bolt you see must be pulled first. That is where the tool to hold the clutch comes in handy. Or impact. Once that is removed the puller is used to remove the actual clutch. There my be a few on here who will chime in with additional details.
It is not a difficult job with the tools, big pain to disasterous without.
Freshman User
Joined: Apr 2003
Posts: 32
Likes: 0
From: Battle Creek, MI
Originally Posted by tim.moman
They, Oreillys, Napa etc... should rent that puller to remove the clutch. There is also a tool to hold the clutch to keep it from turning. You will definitely want the puller. Another avenue might be Harbor Freight or Cummins tool. The pullers are usually not that expensive.
The clutch is a tapered keyed shaft. The bolt you see must be pulled first. That is where the tool to hold the clutch comes in handy. Or impact. Once that is removed the puller is used to remove the actual clutch. There my be a few on here who will chime in with additional details.
It is not a difficult job with the tools, big pain to disasterous without.
The clutch is a tapered keyed shaft. The bolt you see must be pulled first. That is where the tool to hold the clutch comes in handy. Or impact. Once that is removed the puller is used to remove the actual clutch. There my be a few on here who will chime in with additional details.
It is not a difficult job with the tools, big pain to disasterous without.
Senior User
Joined: Jun 2003
Posts: 156
Likes: 0
From: Cranbrook,BC Canada
I just removed the 3 bolts that hold onto the front of the clutch...removed the front end,then removed a snap ring from the pulley,as in my case it was the sealed bearing that piled up on my compressor
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Freshman User
Joined: Apr 2003
Posts: 32
Likes: 0
From: Battle Creek, MI
My bearing was way beyond seized.....the front and back of race fell offf when removing the pulley and half of the bearings were already missing before disassembly. I kept the compressor on the truck so I wouldnt have to mess with refridgerant lines etc which made the work area a little tight but was still able to complete the job, saving myself $750 by having the shop do it. Spins beautifully now! The Friday before I fixed it, drove to visit family 2.5 hours away going about 60 MPH or so.....luckily it held up until I made it there.
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