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

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.

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Average mileage: 131,124 (50,000–175,000)
6 model years affected: 1990, 1991, 1992, 1993, more1994, 1995
14 people reported this problem
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problem details
1995 Nissan Pathfinder 165,000 mi,
Manifold bolts snapped, exhaust noise and fumes in cabin.
i HAVE THE EVHUST NOISE PROBLEM, ALSO THE FLOOR UNDER THE DRIVER'S SEAT GETS SO HOT YOU CANT TOUCH ANY THING UNDER THE SEAT.
1994 Nissan Pathfinder 175,000 mi,
Warped exhaust manifold. Helical coil studs and new manifold.
Bolts poping right and left. Mechanic said just leave it, so I did.
1994 Nissan Pathfinder 134,000 mi,
Broken exhaust manifold studs, replaced broken studs with new.
1995 Nissan Pathfinder 140,000 mi,
After 4 wheeling Manifold bolts busted on Exhaust Manifolds.
Ticking when I start,but is continuous. Haven't fixed yet. Working on replacing the timing belt.
Had the same issue, had the exhaust manifolds replaced and they are leaking again (at 160,000 miles).