Fuel injectors can short-circuit electrically causing a rougher than normal idle and reduced performance.
Car problem reports
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Most reported 1992 Oldsmobile Cutlass Ciera problems
A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.
A ticking noise may develop from the engine due to a cracked exhaust manifold. Damaged exhaust manifolds will require replacement to correct this issue.