2005 Nissan Quest Q&A

2005 Nissan Quest Question: Noise in engine compartment

Recently my catalytic converter was clogged and replaced. However about two days later i started hearing a rattling sound coming from the engine compartment. I also noticed the engine stalls at times. Can anyone help determine the problem -
Answer 1
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? -
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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.