2005 Nissan Quest Q&A
2005 Nissan Quest Question: Noise in engine compartment
Rattling sounds can be caused by many,many things. How about going back to the shop that did the work for a re-check? Maybe they accidentally left something loose that is now rattling? - dandd
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.