Possible tranny slip?

[GettinFishy]

Hello all, today I fixed my boost leak after 30k miles. The car really woke up, anyway today on the highway in 5th gear I started slowly giving it more gas (I had it in manual, the car is automatic) and all of a sudden the car felt like it was hitting bumps and the tires where spinning. Did I feel the transmission slip? Or possible it's the engine cause I'm do for a spark plug change? I'm a little worried. I drive my car is manual mode all the time I hope I'm not doing damage to it, sometimes I'll shift it at the wrong time and it will jerk a little bit.

[GettinFishy]

Sorry I realize that I messed up some info, I meant to say it felt like I was hitting bumps OR the tires were spinning out (they were not). Also tranny has 77k miles with Alpina B3 flash

[Dackelone]

When the engine misfires its very violent. It literally feels like you are driving on square(not round) tires. I suspect your car was missing.

How old are your spark plugs? Could also be on the fuel(injector) side too. I would first start with plugs(& coils).

Dackel

[Solo_M_Tech]

It's time for a tune up. Sparkplugs don't last forever. lol

[mike@x-ph.com]

If you have a tune, post logs and we can easily tell if it is misfiring or tranny problems.