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Rough starting engine

Tiny
BUSH_CLARK
  • MEMBER
  • 2010 NISSAN MAXIMA
  • 3.5L
  • V6
  • AUTOMATIC
  • 182,000 MILES
Engine sounds rough when starting, almost like valves are rattling. Sometimes it cuts back off and I have to restart it. Had it checked at AutoZone and the diagnosis was possibly the ignition coil.
Saturday, December 28th, 2019 AT 8:21 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

You indicated noise when starting resembling valve rattle. Is the engine oil clean and full? Next, you had it tested at Auto Zone. Was the check engine light staying on when the engine was on? If so, did they happen to tell you if there were diagnostic trouble codes and what they were?

As far as an ignition coil, chances are you would have had a cylinder misfire code. However, please keep in mind there are many things that can cause a rough start and a stall at idle. Here is a link that explains in general the most common causes of a stall at idle.

https://www.2carpros.com/articles/stall-at-idle

Let me know. Also, if it's possible, record the engine starting so I can hear what you described.

Take care,

Joe
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Saturday, December 28th, 2019 AT 10:20 PM

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