BenzWorld Junior Member
Date registered: Mar 2008
Location: Alabama Gulf Coast
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Tach hunting at highway speed...no surging at idle
Guys, I have been surfing the forum trying to find someone who has had a similar problem and I just don't see it. So...here goes. A '97 E300D with 208k miles. Sometimes when I am cruising down the highway around 55 60 mph the tach start to fluctuate back and forth a very slight amount and I can feel the engine surge slightly. I have never observed it doing this at idle. Is this a symptom of the throttle position sensor or what? I am stumped!
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