Last post on Oct 10, 2010 at 8:50 PM
You are in the Nissan Altima
What is this discussion about?
Nissan Altima, Engine, Sedan
#109 of 118 Re: QR25DE Motor [rileyml1]
Apr 11, 2010 (10:24 am)
Thanks for the info...I just changed my oil to Mobil 1 syn 5w-30 2 weeks ago and the 2.5 still sounds like a sewing machine when I accelerate up to 2000 rpms, then it is fine. So, I doubt it is an oil issues as is a "engine design/lifter" issue. I have been on www.bobistheoilguy.com and there is a plethora of info. on his site.
Apr 12, 2010 (4:55 am)
It is the valves and the cam's. I have the problem as well when i start the car i hear very loud valve chatter. If i turn it off and right back on its not there. One thing i am looking at doing is taking the head off check on everything. For the QR25DE in any Nissan check out http://www.courtesyparts.com/ for looking parts up. I do not buy from them i buy my parts from https://www.everythingnissan.com/nissan-oem-parts.html better prices and better people. I have replacement clutch pressure plate few O rings and seals for when they go bad already just siting here. I was thinking of bushings next and timing chain for the 60k mile overhaul. Wife is getting upset over all the car parts she asked me few times if i am building a new car. Check out www.nicoclub.com forums they have some good posts people should read.
#111 of 118 Re: 2007 engine noise [kannadiga]
May 05, 2010 (2:41 pm)
I have a 2008 Altima and have been complaining about cold engine noise since I bought the car new. I have been told it is piston slap and all of these 2.5 engines have the issue when cold. I am now working through Nissan consumer affairs and my dealer to resolve the issue as it is getting worse with time. I am told thus far that Nissan does not have a fix for it but Nissan consumer affairs asked me again to bring it back to the dealer. I will be seeing the dealer early next week so it will be interesting to hear their response I have been through the heat shield thing and the dealer did resolve this issue. I suggest to contact Nissan consumer affairs with your issue as there is strength in numbers.
#112 of 118 altima 2.5 engine noise
May 05, 2010 (3:10 pm)
Please keep us posted!!!! my 07 with 33k seems to be getting worse
#113 of 118 Re: 2007 engine noise [jbackes]
May 05, 2010 (3:17 pm)
Thanks for your input. I did go to Nissan Consumer Affairs and was told that since the dealer had a factory tech look at the car and he determined the noise was the fuel injectors and it was normal that he had the final word and I was SOL. My problem now is that since the weather has warmed the noise is not as bad so it is hard to take it in and show someone. I full expect it to get bad again next fall and by then my warranty will be out.
#114 of 118 Re: 2007 engine noise [deetailer]
May 14, 2010 (2:43 pm)
i have had the same problem with my 08 altima, it sounds like a diesel engine on cold mornings for the first 5 miles or so then the noise goes away until the engine cools off. i have had mine in the shop 6 or 7 times with this problem , the dealership tried everything they knew to do, including some type of re-programing, new timing chains, they disasembled the valvetrain and checked everything but none of this helped. finially after the 6th time and 30 days in the shop they said that it was a normal noise and there was nothing else they could do for it and that i was just going to have to live with the noise. needless to say dont think its normal at all i think they have a problem with ALOT of these cars and the dont want to admit it.
#115 of 118 Re: 2007 engine noise [hre21]
May 14, 2010 (3:04 pm)
FWIW I have been doing like the one gentleman above said to do and thats to hold the pedal to the floor with foot on brake and then push the start button and let it turn over 5-6 times priming the system then release acc pedal and let it start like normal it is much quieter doing this!. I also will be adding some STP Oil Treatment do my oil to see if that helps quiet it down also.. Quite obvious nissan will do nothing for us at this point!...
#116 of 118 Not Sure If this Is What Your Hearing
May 16, 2010 (5:17 pm)
I don't have a Altima, but I do have a 2010 Maxima SV and I've had since day one a terribly loud/very consistent and frequent knocking/pinging/clinging noise coming from the engine compartment near the bottom while the car is running/idling and when the engine is off and cooling off in the driveway or in the garage. I've spoken to a Nissan Master Tech online and of course he told me that this is normal and something that all Nissan's do, especially the Altima's, and he said that it has something to do with the way Nissan designs the heat shield on their cars and its not allow to really expand resulting in these knocking/pinging/clinging noises! Of course, I'm outraged that a 37k buck car like the Maxima is making these loud/unrefined noises, enough I have had people ask me if there was something wrong with the car. Its very disappointing because I have never had a car from a multitude of different manufacturers over the years make this noise except this Maxima. I have to links below to 30 second video/audio clips of this noise. Just take a second to check it out and see if it a similar to noise that your Altima's make. If not then I'm sorry I couldn't be of help, if it is the noises your hearing, as least you know now what it is from and that there isn't anything stupid Nissan can do about it!
#117 of 118 Re: Not Sure If this Is What Your Hearing [smarty666]
May 16, 2010 (7:57 pm)
I am sorry for you but glad to say the noise on my car is not that bad. That is terrible. My noise sounds like the valves tapping and I hear it when I accelerate from a stop. It is also much worse in cold weather. I would call the nissan Nissan Consumer Affairs
P.O. Box 685003
Franklin TN 37068-5003
(800) NISSAN-1 (or 800-647-7261)
8:00 a.m. - 5:00 p.m.,
Eastern / Central Time / Pacific Time
Monday through Friday
#118 of 118 Re: Nissan Altima Engine Rattle [seatown1]
Oct 10, 2010 (8:50 pm)
Sorry for the late reply, I have this noise for more than 2 years during cold weather. No problem and still runs fine with right mpg (30 mpg 60mph cruise). That tapping noise is normal and will disappear after the engine is warm (10 minutes). Some of us have split of a second rattle noise on startup because the timing chain tensioner building pressure time. This noise should disappear after few seconds.
The one that you need to check is the dribbling noise after bumps. It could be your passenger side and rear side engine mounts, or some screws loose behind the cowl/windshield. Check FAQ Nissanclub.com.