A door window may move slowly or stop in mid travel due to a failing power window motor. The affected window may start working again after the motor cools off. Replacing the faulty window motor will commonly correct this concern.
Buick Skylark Problem Reports
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The front or rear exhaust manifold may crack causing an exhaust leak. Our technicians tell us the manifold should be replaced to correct this condition.
Fuel injectors can short-circuit electrically causing a rougher than normal idle and reduced performance.