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HELP! 560 not running right after replacing fuel distributor
My local mechanic (not MB certified) swapped out my leaking fuel distributor 2 days ago before leaving for a 2000 mile trip south. When driving below 40 MPH it runs very rough and the engine doesn't feel right. It gets better at 50, 60, 70 MPH.
I spoke with a friend who is a Porsche mechaninc, he says if the 560 is CIS it may be vacuum related, perhaps a hose came loose. Otherwise, it may be fuel-pressure related. We did the idle adjust as per MB's service manual, idle seems okay when in Park, gets rough when I put the car in Drive. I am in Morehead City North Carolina, and leave Sunday for Raleigh and then Nashvillle. Any ideas?? Any good MB mechanics between here and Raleigh that can help me out? I don't want to put too many more miles on her in this condition. -gil
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GG NJ USA 1983 300SD (Sold at 198K) 1989 560SEL (205k) - slowly restoring 2009 Toyota Camry Hybrid (6k) - daily driver 1995 Colt Vista AWD (145k) - fun car! spare 1991 Buick Riviera 3.8l (85k) - fur die Kinder RIP: 1965 LeMans/GTO Convertable -my first RIP: 1968 GTO 400 HO w/ 400HP - ballsy! (blew the motor racing a '69 GTX - bummer) Last edited by gilwave; 06-23-2005 at 01:00 PM. |
#2
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its just a shot but I once left the main vacuum hose off on the right side of the intake manifold on mine. it ran horribly, although it it did run. if they bumped the line or if its just nbot on that might be your problem. if its on, pull it off and block off connection to see if your idle improves. if so theres a leak somewhere else down the line.
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![]() 1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350 |
#3
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The car "fixed" itself the day I went to have it repaired!
The mechanic thinks that I may have had a plugged injector (I bought the fuel distributor used, may have been gummed up with some old fuel) and the constant pressure frm new fuel through the lines cleaned it out. SO now it runs right at all RPMs, but the highway gas mileage has slipped from 18-19 MP to 15-16 MPG. -g |
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