I get a tapping noise that sounds like valves tapping. It last a couple of minutes on the first start of the day.
Is that normal or might there be a problem? 2007 Altima 2.5 31k mi.
I get a tapping noise that sounds like valves tapping. It last a couple of minutes on the first start of the day.
Is that normal or might there be a problem? 2007 Altima 2.5 31k mi.
Not the oil.
Took it to a Nissan dealer and they did a repair on the catalytic converter which is covered under the Nissan Service Bulletin NTB08-001. However, that did not do the job. My further research indicates the problem may be related to that mentioned in service bulletin NTB08-014 which is outlined below.
I'll take it back to the dealer again and have him look at this as a possibilty. I have created a .wav sound of the noise so I can let him listen to what the actual problem sounds like when the engine is cold.
You can do a Google search on "altima ntb08-014" to see more about this as a possible solution.
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Description: 2007 NISSAN ALTIMA; QR25 ENGINE RATTLE NOISE WHEN COLD Rattling or knocking noise from the engine when all of the following conditions are met:
Here is what the noise sonds like:
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