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#1
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CCU Repaired!
For weeks now, I have been living with Christine, the gremlin that lived in my CCU on my 85 SD. It has been in the 100s here in NC and seemed to have quit working all together on my wife as she was driving. The AC compressor would cycle, but no blower motor. About a mile from the house, it started working...and then not. Go figure.
My troubleshooting found no power to the blower motor and also no power coming out of the CCU to the regulator. So, out came the CCU and with a slight twist and wiggle of the unit caused the blower to come on - that is until the circuit heated up some or got jiggled again, and then it cut off. I removed it and found the classic solder and circuit board components issues these things are plagued with. The relays on the board had loose solder joints, so I simply re-soldered them, thanks to several of threads started and completed by you all. Christine has been exorcised, the CCU is clear, and mama and I are riding in R12-supplied cold air. If shes happy, I am happy. Thanks Again! P.S. If I turn off the AC setting at idle, or I shut the car off and restart it, the AC compressor clutch will not engage until I hit 2000-3000 rpms. Any light shed on that?
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Thanks, Mark in NC "Spark plugs?...We don't need no stinking spark plugs!" 1985 300SD "Der Silberne Schlitten" 420,000 mi Wish these were diesel: 2003 Ford Club Wagon 130,000 mi |
#2
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your welcome
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i know Jim Smith. i don't actually know him, but I know of him
http://imageshack.com/a/img923/6201/RQ1H6A.jpg |
#3
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Nothing like a wife without an air conditioned car.
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Jim |
#4
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I gotta check my solder joints. Been meaning to do that.
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85 300D 75K Anthracite Grey 0-60 in 13 seconds **For Sale** 84 300D 333K Black (The Velveteen Rabbit) 0-60 in 14 seconds 00 Toyota Sienna 208K (Sold) 15 Subaru Outback 43K 11 Subaru Outback 67K 98 Ford Taurus 100K (Gertie - Was Grandma's - drove it to church and shopping - really) Daughter's car now. 30 Model A Ford 2 Door Sedan (Sold) 0-60 in . . . Never reached 60 |
#5
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I am wondering if that is the problem with my CD? If I go over a bump, the blower goes off and then back on again. Also, sometimes the blower will not come on after driving the car for a while, and starting it up again. When the blower will not come on, I roll down the window. Then all of a sudden, the blower comes on. Could that be the infamous solder joint problem in the CCU?
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All Diesel Fleet 1985 R107 300SLD TURBODIESEL 2005 E320 CDI (daily) LOTS of parts for sale! EGR block kit http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html 1985 CA emissions 617 owners- You Need This! Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst. Sanden Instalation Guide (post 11): http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html |
#6
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Could also be worn brushes inthe blower. Had that problem in the 84SD.
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1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#7
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yeah i also need to look at the blower, but the solder joints were glaringly obvious upon inspection. So far, shes still kicking. Yet another repair, not replace.
__________________
Thanks, Mark in NC "Spark plugs?...We don't need no stinking spark plugs!" 1985 300SD "Der Silberne Schlitten" 420,000 mi Wish these were diesel: 2003 Ford Club Wagon 130,000 mi |
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