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#1
11-01-2006, 02:11 PM
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Low RPM idle @ cold start?
What would cause this? I'm guessing my rack damper bolt is too tight?
__________________
I'm not a doctor, but I'll have a look.  '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG] 
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#2
11-01-2006, 02:20 PM
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I have the same issue. When I start up my car it sits at about 500 on cold mornings after I rev it sits back down at about 750-800. I tried adjusting the rack damp. pin, but If I loosen it at all my car shakes terribly without any noticeble higher rpm on a cold idle. I have a feeling it might be timing related and I am going back to the drawing board with my injection pump this weekend. Ill probably give the millivolt method a try again although the last time It took me several hours to only get partially imrpoved results in the running of the engine.
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1983 300SD White with Grey interior
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#3
11-01-2006, 03:30 PM
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what model?
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#4
11-01-2006, 04:04 PM
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Quote:
Maybe just the IP is worn. Quote:
Since the 603 has a computer controlled idle and no rack pin... it has to be the SD...
__________________
I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#5
11-01-2006, 05:27 PM
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My SD will crank over once and start instantly after a 6 second glow when its 25F out, it did this morning!
 Idles really low and quiet at first (can barely hear it, its like a V8 gasser), usually I just drive away within 10-20 seconds, but if I let it sit it will actually raise its idle after a couple minutes, and idle high for about 4-5 mins, then it settles to its normal idle. Pretty weird considering it has no computer controlling the idle or anything.
__________________
-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 110k - mine - (OC-112,500) '17 Metris(VITO!) - 30k - wifes (OC-34k) '09 Sprinter 3500 Winnebago View - 61k (OC - 63k) '13 ML350 Bluetec - 84k - dad's (OC-86k) '01 SL500 - 99k(km) - dad's (OC-102,000km) '16 E400 4matic Sedan - 136k - Brothers (OC-139k)
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#6
11-01-2006, 07:36 PM
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Quote:
__________________
1981 240d Newport,RI
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#7
11-01-2006, 07:50 PM
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My 1984 300TD exhibits the same behavior.. I just chalked it up to cold oil/loose cold engine being harder to push... was thinking about hijacking a throttle cable off a lawnmower or some other similar device and building a high-idle/cheap cruise-control-fix device...
kind of like the "cruise" my dad had on his old FJ diesel landcruiser.. he never shoulda sold that thing
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