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'04 Infiniti G35, Whirring/Grinding/Thrrrrr Noise On Startup


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birdland1982
Novice

Aug 6, 2013, 9:50 AM

Post #1 of 2 (2414 views)
'04 Infiniti G35, Whirring/Grinding/Thrrrrr Noise On Startup Sign In

2004 Infiniti G35, 6 cylinder, 124,000 miles.

On startup, after the normal engine startup noise there is immediately a "whirring/grinding/thrrrrrrrrr" noise for about two seconds before the engine returns to normal sound.

The noise is most pronounced first startup of the day, after it has been resting overnight. Subsequent startups throughout the day the noise is less pronounced or non-existent. It is worse if the car has been resting a few days.

Took it to my mechanic, who replaced my engine in March, to see if it was something covered under engine warantee (6 months).

He diagnosed it as a problem with the starter. He said it is something to do with the reduction gear grinding against the starter? I didn't really understand what he was talking about. He said they tried to lube it/clean it but it wasn't possible so they have to replace the starter. Another mechanic that I had look at the problem thought that it was a timing chain problem.

Does a problem with the starter seem like a correct diagnosis?

Any idea how much this should cost to repair?

Is the starter something that should be included under a warantee for a new engine, or did they probably not replace the starter when they installed the new engine?

Thank you in advance.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Aug 6, 2013, 11:30 AM

Post #2 of 2 (2401 views)
Re: '04 Infiniti G35, Whirring/Grinding/Thrrrrr Noise On Startup Sign In

At a glance and your description it sounds a lot like a solenoid and starter drive. If witnessed and will misbehave shouldn't be that hard to diagnose. Those parts come with a replacement starter but most can be done separately if a tech wants to take the time,

T







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