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Nissan Altima Engine Rattle

97 messages,  Last post on Oct 18, 2009 at 12:54 PM

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What is this discussion about? Nissan Altima, Engine, Sedan


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#1 of 97
Altima 2.5 Engine Rattle on Start and Warmup by j3flyer
Oct 01, 2007 (4:56 pm)
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Took the 2007 Altima 2.5 in for service today with 1,500 miles. Engine has loud rattle when starting cold, and louder when shifting into drive or reverse as the idle kicks down a few hundred rpm. I sense that the engine oil has settled over a period of time not running. Further, I believe the internal engine parts do not get the oil lubercation until fully warmed up. Then the loud rattle goes away. More noticeable as we get into the cooler/colder Fall days.
Nissan dealer is calling the "hot line" to see what the problem and/or fix might be.
Has anyone experienced this loud rattling noise during engine warmup?
#2 of 97
Re: Altima 2.5 Engine Rattle on Start and Warmup [j3flyer] by elfenbein
Oct 01, 2007 (6:21 pm)
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Replying to: j3flyer (Oct 01, 2007 4:56 pm)

I have the same problem.. .Dealer said it was nothing to worry about.. Thinking about calling corporate.
#3 of 97
Re: Altima 2.5 Engine Rattle on Start and Warmup [elfenbein] by j3flyer
Oct 02, 2007 (4:01 am)
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Replying to: elfenbein (Oct 01, 2007 6:21 pm)

The loud noise is similar to a diesel engine on an 80s VW first warming up.
 
If I am told this is normal, that will definitely not be acceptable.
 
Hindsight, I would reconsider buying the 2.5. Otherwise it is a great car.
 
I will post what comes back from the "hot line" call that the dealer makes. (..traveling rest of week, will reply on weekend. Tks.)
 
Please let me know what your results are with Corporate. Likewise, if the local dealer does not resolve my problem, I will also elevate to Nissan Corporation.
#4 of 97
Re: Altima 2.5 Engine Rattle on Start and Warmup [elfenbein] by arim416
Oct 04, 2007 (3:33 pm)
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Replying to: elfenbein (Oct 01, 2007 6:21 pm)

i have exactly the same problem.. especially in the morning.. there is a weird "roaring" sound when start up. but during the day it's fine. Should i be concerned?
 
i also have two other problems with new altima (bought it on 9/29) one is that I can hear the WIND NOISE when i speed up to 60 mph... which is quite annoying. Also sometimes when I release the gas paddle and step on the break....the car would "suddently drive foward like a downshifting mechanism". The last problem also happens in the morning, too, which is when I turn the steering wheel...i can hear a grinding noise near the fender....
any thoughts?
#5 of 97
Re: Altima 2.5 Engine Rattle on Start and Warmup [arim416] by gooddeal2
Oct 06, 2007 (5:02 am)
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Replying to: arim416 (Oct 04, 2007 3:33 pm)

downshifting mechanism
 
This is normal for most cars now. Actually, I prefer the way it behaves.
#6 of 97
Re: Altima 2.5 Engine Rattle on Start and Warmup [arim416] by j3flyer
Oct 10, 2007 (8:52 am)
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Replying to: arim416 (Oct 04, 2007 3:33 pm)

Nissan's "Hot Line" and the local dealer have determined the problem to be the exhaust heat shields in the engine compartment. Something to do with factory installation of the bolts holding the shields. The service writer told me that this has become a common problem for the 2.5 Altima. The fix is to replace the heat shields which have been ordered. In the meantime, the shields have been removed from the car by the service department....
#7 of 97
same rattle problem w/ heat shields by teiana
Oct 26, 2007 (10:20 am)
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I was relieved to find this thread, as I have been experiencing the same extremely loud noise. The dealer told me today the same thing regarding bolts and heat shields, but they're trying to use washers to tighten the bolts, rather than replace the shields. I asked if the rattling can cause deterioration over time, but they said no. Hmmm.
 
And I also have that wind whistle through the driver side window. It is a bit annoying, but overall, I really love my new car.
#8 of 97
Re: same rattle problem w/ heat shields [teiana] by j3flyer
Oct 26, 2007 (10:38 am)
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Replying to: teiana (Oct 26, 2007 10:20 am)

It has been two weeks since the heat shields were removed. That was definitely what created the noise. I am not certain when the new shields will come in. Nissan might be coming up with a solution. No problems without the heat shields that I know of so far.
 
You might consider asking the dealer remove the shields until a permanent solution/fix can be made. Using washers to tighten the bolts doesn't sound like something that will be long lasting...
Our 2.5 Altima is great, and the gas mileage is starting to improve with city driving. With 2k miles, getting 23 mpg city compared to EPA 26.
#9 of 97
Re: Altima 2.5 Engine Rattle on Start and Warmup [j3flyer] by bizzjet1
Oct 27, 2007 (9:01 am)
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Replying to: j3flyer (Oct 01, 2007 4:56 pm)

I dropped mine off at the dealer this morning for the engine rattle. The tech rep says,"what rattle?". I am sure glad to hear that there are others having the same issue. Did they make it stop rattling?

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