1991 Nissan Pickup (D21) Problems
RepairPal has identified the most common problems with the 1991 Nissan Pickup (D21) based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.
The exhaust manifold on the 3.0 liter engine 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.