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Old 09-09-2009, 05:27 PM
bolomiester bolomiester is offline
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Join Date: Jul 2007
Location: Oregon, Illinois (about 100 miles due west of Chicago)
Posts: 354
Quote:
Originally Posted by MrsSudz View Post
I have the same car with the same issue. I've done everything on this thread.
Me too, and none of it has had any effect, except a slight improvement when I turned the EHA adjustment 3/4 turn CW!

This was a very nice car when I bought it in March. Rust free body, nice original paint, great interior, ran & idled perfect and everything works! The only thing that gave me pause was that it came without records. It's got 'em now!

The problem showed up about 2 weeks after I bought it, so it made sense that it was one of the parts I've replaced that had failed or was failing. Since none of the replaced parts has made any difference, it appears that the culprit is still waiting to be discovered.

The new injectors arrived today and I'll start replacing them this evening. I have high hopes that this will be it! If it sits overnight it takes several seconds of cranking before it fires. The longer it sits the more likely it is to start after the extended crank time and not do its start/stall/start/chug-chug/run thing. If it's started within a few minutes of shut down, it fires up perfectly without a hint of anything being wrong. Where the problem really shows up is after it sits for anything from about 30 minutes to an hour.

My latest theory is that I have one or more leaking injectors that are both bleeding off the system pressure, and flooding the engine by leaking raw fuel into the cylinders.
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1990 Mercedes 560SEL
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