How to fix a squeaky CCU fan
#1
Jarhead
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How to fix a squeaky CCU fan
One day riding home from work with my roommate a horrible squealing/squeaking sound began emanating from somewhere behind the dashboard. I was understandably worried and perturbed, probably as much from the mechanics bill I was sure was awaiting me as from the smug grin on my friend's face since he was also imagining my new bill. Well, thanks to some time and a little help from this forum I found the cure. It didn't cost me anything and only took about 45 minutes.
Brian
Brian
#2
Jarhead
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Tools:
-Phillips screwdriver
-Metric socket set (I can't remember exactly which size socket I used, but I know it was small maybe 7mm or 8mm? )
-Radio removal tool: These are two little U-shaped pieces of metal that fit into the holes on either side of the CCU and allow you to slide it out. Cost me $5 at the local auto parts store, but you can make your own out of coat hangers if you're really cheap, errrr.... frugal.
-Grease: I just used the Mobil 1 synthetic I had lying around
-Rags
Time:
About 45-60 mins if you take your time and don't scratch up the interior or break the CCU.
This pic shows the underside of the CCU. The fan is circled.
-Phillips screwdriver
-Metric socket set (I can't remember exactly which size socket I used, but I know it was small maybe 7mm or 8mm? )
-Radio removal tool: These are two little U-shaped pieces of metal that fit into the holes on either side of the CCU and allow you to slide it out. Cost me $5 at the local auto parts store, but you can make your own out of coat hangers if you're really cheap, errrr.... frugal.
-Grease: I just used the Mobil 1 synthetic I had lying around
-Rags
Time:
About 45-60 mins if you take your time and don't scratch up the interior or break the CCU.
This pic shows the underside of the CCU. The fan is circled.
#3
Jarhead
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Step 1:
Insert the radio removal tools on either side of the CCU and push them in until you can pull it out of the dash. Have a few rags standing by so that you can stuff them in between the unit and the trim so it doesn't get marred.
Step 2:
Remove the two large plugs from the back right hand side of the CCU. It's fairly self-explanatory once you have a look at it. The plugs are hinged to one side. With the plugs removed, remove the unit from the dash.
Insert the radio removal tools on either side of the CCU and push them in until you can pull it out of the dash. Have a few rags standing by so that you can stuff them in between the unit and the trim so it doesn't get marred.
Step 2:
Remove the two large plugs from the back right hand side of the CCU. It's fairly self-explanatory once you have a look at it. The plugs are hinged to one side. With the plugs removed, remove the unit from the dash.
#4
Jarhead
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Step 3:
The fan is attached to the unit with two hex bolts. Remove them, set them aside, and disconnect the electrical connection to the rear of the unit. There is also a small piece of rubber tubing which directs air from the outlet of the fan to the interior of the CCU. Remove that as well.
The fan is attached to the unit with two hex bolts. Remove them, set them aside, and disconnect the electrical connection to the rear of the unit. There is also a small piece of rubber tubing which directs air from the outlet of the fan to the interior of the CCU. Remove that as well.
#5
Jarhead
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Step 4:
The fan is held together by two small phillips screws (circled in yellow on the fan. Also visible in yellow on the right side is the rubber tube that directs air to the inside of the CCU, and in purple is the hex socket I used to remove the two bolts in Step 3. See, I told you it was small. ). Remove these two and the fan will come apart into three pieces: the top metal portion, the fan itself, and the bottom black portion.
NOTE: Do not lose the small hex nuts the screws thread into. They can fall out of the fan housing if you aren't careful, and they're small enough to be difficult to find once lost.
The fan has spindles on each end that fit into holes in the other two pieces. Lube up the spindle and the holes with some grease on the end of a q-tip or toothpick.
Step 5:
Put that sucker back together in the same order you took it apart.
I did mine about a month ago and it's been quiet as a mouse ever since. Hopefully it will last, and if it doesn't, it's not hard to pull it back out and do it again. At any rate, when I checked the fans were special order parts and if I remember correctly cost $150-200 a piece. My fix was much cheaper.
Brian
The fan is held together by two small phillips screws (circled in yellow on the fan. Also visible in yellow on the right side is the rubber tube that directs air to the inside of the CCU, and in purple is the hex socket I used to remove the two bolts in Step 3. See, I told you it was small. ). Remove these two and the fan will come apart into three pieces: the top metal portion, the fan itself, and the bottom black portion.
NOTE: Do not lose the small hex nuts the screws thread into. They can fall out of the fan housing if you aren't careful, and they're small enough to be difficult to find once lost.
The fan has spindles on each end that fit into holes in the other two pieces. Lube up the spindle and the holes with some grease on the end of a q-tip or toothpick.
Step 5:
Put that sucker back together in the same order you took it apart.
I did mine about a month ago and it's been quiet as a mouse ever since. Hopefully it will last, and if it doesn't, it's not hard to pull it back out and do it again. At any rate, when I checked the fans were special order parts and if I remember correctly cost $150-200 a piece. My fix was much cheaper.
Brian