1998 Nissan Quest Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1998 Nissan Quest
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1998 Nissan Quest ProblemsFailing Engine Mounts Will Cause Thumping in Floor
A thumping heard and felt in the floor is often caused by failing engine mounts. A failing mount allows too much movement of the engine, and will require replacement.
A coolant leak may develop from a plug on the front of the rear cylinder head, behind the timing cover.
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.
1998 Nissan Quest QuestionsCar starts but then spits, backfires and dies. (1 answer)
I put new plugs wires cap and rotor