W107 1986 fuel problems - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 03-31-2006, 03:36 AM Thread Starter
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Date registered: Mar 2006
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W107 1986 fuel problems

I have this car for more than 10 years. One day it srops in traffic several times, and have the fuel pump replaced. Few years later: same thing, fuel pump replaced and all ok. While ago, after driving a 100 miles or so, it decelerates and only barely manages to keep it runningat low speed. Park the car for a while. Drive to garage to have it checked: problem "healed", but have fuel pump replaced as precautionary measure. Runs ok again, except no fast acceleration-kind of hickups- when kickdown. Garage cleans some things, and now acceleration is ok, except engine stalls at idle. Cannot find problem, engine shuts off every time and starts difficult. He talks about high pressure fuel distributor and 3000usd.....Anyone with help?
Regards, Latetonite.
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post #2 of 2 (permalink) Old 03-31-2006, 01:56 PM
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RE: W107 1986 fuel problems

Is there any evidence of mixture problems like blue or black smoke? Have you changed to a fuel with different octane? When you changed the fuel pump did you take a fuel sample to check for contaminants? I had some similar problems to you and it turned out to be due to a rusty fuel tank and bad fuel. A new fuel tank and new fuel, pump, filter and distributer fixed the problem.

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