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Thank you all for the comments. Turns out it was the water pump. Bearing was out and coincidentally developed a small leak around the oil fill tube mixed with the leaking coolant looking like an oil leak. Repaired, no issues and runs cooler now.

I rinsed down the engine and ran at idle. The balanCer definitely has a slight wobble to it. Now all I have to do is locate one and a seal. Thank you all for the help.

Ah. Maybe. Sounds like a trip to the shop. I don’t have the space to tear into the engine unfortunately.

Yes. When the transmission is in neutral and engine at higher RPM the vibration is there but only at a certain range then it goes away. Or at 50-50 mph. Same RPM range. It’s in the engine, not the drivetrain.

I thought the same but it vibrates at a certain RPM in park. Then there’s the oil. Maybe tie rod?

Hey folks. 1993 m998 6.2 liter three speed has developed an engine vibration between 50 and 55 mph. Runs smooth outside of that range. I don’t have a Tac so not sure of the rpm but it does it out of gear also if you rev it up. When checking the motor mounts I noticed an engine oil leak now where...

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