Ticking Noise When Cold Due to Broken Exhaust Manifold Studs on Nissan 300ZX

The exhaust manifold often warps, breaking off the studs between the cylinder head and the exhaust manifold. The noise may be most noticeable when the engine is cold.

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Average mileage: 150,000 (150,000–150,000)
7 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996
8 people reported this problem
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