New symptoms based upon road test to take it to the Indy...

Does indeed not want to go fast or match speed to throttle. Floored its doing like 50 mph. Shifts but shifts hard. Jerks more than normal. Vibration smooths out when at top speed but always persistent.

Vibration less but still there at idle in park or neutral.

Engine smooth and seems normal and responsive and no miss or stutter.

Makes me go back to thinking Transmission now... 156K on the thing but well serviced transmission that has not missed one lick and always shifted nice a firm and correctly. But who knows. More thinking something in the control of transmission perhaps?

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1983 300D-Turbo - Deep Blue w Palomino MB Tex (total loss in fire 1/5/09 RIP)
1995 E320 W124 Polar White/Grey Mushroom MB Tex
2005 F150 Supercrew - Arizona Beige - Lear topper
1985 Piaggio Vespa T5 - Black and Chrome

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