Problem Description and Possible Solution
The exhaust manifold often warps and cracks, breaking off the studs between the cylinder head and the exhaust manifold. The noise may be most noticeable when the engine is cold.
Average mileage: 131,124 (50,000–175,000)
16 people reported this problem
Had the same issue, had the exhaust manifolds replaced and they are leaking again (at 160,000 miles).