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Old 03-02-2001, 04:29 PM
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Any ideas what would suddenly cause the no. 3 cyliner on my 190e to stop firing properly. The engine was rebuilt 1 year ago with no problems since. I just replaced the fuel pump which was going bad anyway, but the problem is still there. Any thoughts on what would cause this and possible solutions?


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Old 03-02-2001, 10:00 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
You will have to do a compression test to see if there is any internal leakage.

Also you could have the engine's ignition system checked for a misfire.
Donnie Drummonds
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Old 03-03-2001, 10:34 AM
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How did you isolate number three?

If you indeed have an identified dead cylinder it has to be one of three things; no spark, no injection or no compression.

As Benzmac said do a compression test first and go from there.

Have a nice weekend,
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Old 03-12-2001, 08:35 AM
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problem solved

Thanks for your advice folks. The problem turned out to be that a mechanic I recently used forgot to reattach the air breather hose. Reattached myself, and it runs great.

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Old 03-12-2001, 09:08 AM
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Driver, Mercedes-Benz
Join Date: Feb 2001
Location: Malaysia
Posts: 1,645
Vadrill - glad to know your problems' solved. But how in the world did the mechanic slip up??

Goodness if I would have much confidence if that happened to me ...

Hows the car running now?

Hope you'd have a great start to your week.

... Kerry

126 tailed by a 203, 129 leading the pack.
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Old 03-12-2001, 09:48 AM
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I tried a different mechanic on the recommendation of a co-worker. Big mistake. His work was sloppy. Oh well, live and learn.

The car is running great now.

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