1993 Buick Century

SONNY METCALF

MEMBER
1993 BUICK CENTURY
6 CYL
FWD
AUTOMATIC
106,000 MILES

Car has a humming sound when you go around curves, either left or right; sometimes rumbles and vibrates like a rough road; Then when braking to a stop, the car lunges forward and the engine dies. Putting in park or nuetral the engine starts ok but lunges forward again and the engines dies again. It will be ok after the car sits a few hours and cools. I have been told by several shops that the car lunges and engine dying is a solonoid inside the transmission; but they don't know what the rumble on turns and vibrating is caused by. I would very much your input and opinion on this problem. Thanks, Sonny Metcalf-sonny. Metcalf@yahoo. Com

Saturday, July 4th, 2009 AT 7:31 PM

1 Reply

JALOPYPAPA

MEMBER
467 POSTS

Humming on curves between 35 and 50 mph is a front wheel bearing. It's usually the one that gets more weight, i.E, the side opposite the direction of steer, although sometimes the reverse is true. This may also be the source of the rumble and vibration, or it may be another steering or suspension component. The lunging and stalling, as your mechanic said, is probably a failed torque converter clutch solenoid, sometimes called a lock-up solenoid. As the term implies, it makes a firm connection between the engine and transmission at cruising speeds, like letting out the clutch on a manual transmission. It's not letting go when it should. It can be replaced without removing the transmission from the car.

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Monday, July 6th, 2009 AT 11:43 AM