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Infiniti I35 Maintenance and Repair

522 messages,  Last post on Nov 24, 2009 at 2:43 PM

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What is this discussion about? Infiniti I35, Sedan

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#476 of 522 Re: Infiniti repare center... RIPOFFFFFFF [ferdi1] by bostonguy1 Jul 06, 2009 (9:55 am)
Replying to: ferdi1 (Jun 17, 2009 6:41 pm) So ferdi1,   How's your I35 running? Mine is running good...Check Engine Light is now off...it's a good thing! Someone told me that the issues that cause the CEL to go on are stored on board and may come back to haunt me (i.e. maybe at inspection time). Not going to worry about till Feb 2010 (inspection time). Replies to this message: ferdi1 (Jul 06, 2009 11:43 am)
#477 of 522 Re: Infiniti repare center... RIPOFFFFFFF [bostonguy1] by ferdi1 Jul 06, 2009 (11:43 am)
Replying to: bostonguy1 (Jul 06, 2009 9:55 am) HI bostonguy1,   my engine light is never been on. I have never had any warning lights coming on since I own the car.   When i bought the car i had to replace the cooling fan assembly (it was noisy). Also i change the transmission oil(flushed it), all the belts and filters. The car drives just great. I always try to find something wrong with it but so far no success.   2 days ago i went to test drive Honda Accord 2008. Just to see how it is. O boy... my infiniti I35 has much better ride. The Honda has some issues with the acceleration it gives you some but compare to I35 that is nothing. I drove also Mazda 3 2010 and BMW3 2002. Overall non of those cars are better than I35.
#478 of 522 Re: Suspension/ Tires [slaydemon] by pethelman Jul 14, 2009 (7:59 pm)
Replying to: slaydemon (Oct 18, 2008 9:43 pm) This IDENTICAL problem is popping up a lot. 99% sure it is the engine mounts. My 2002 does the same thing. Try this... in an empty parking lot, pop the hood, start the car and back up. It's even worse if you have the wheel hard left while you do this. While rolling backwards, maybe 5 mph or less, go ahead and drop it into Drive (don't touch the brake, let the transmission do the work). Watch the engine go clunk, clunk, clunk as it moves excessively and bottoms out on the rear mount. The exact same noise you are hearing when you hit potholes, dips, rumbles in the road etc. Test 2: Put the e-brake on and left-foot the brake while you do a quick rev with the car in gear. The motor will torque over violently and CLUNK on the motor mount. The front and rear mounts are electronic, containing some magic piezo-electric fluid that changes viscosity when charged. If they fail, they are just too soft and the motor becomes heavily under-damped, making the quick suspension movements result in the same CLUNK. Not only is my rear mount bad, the right front mount looks bad as well (bulging at the top and dry rotted). You can get the OEM parts online about 20% less than a local dealer, and should be about a 3 hour labor charge. Not cheap, but it seems to be the solution.
#479 of 522 Re: Suspension/ Tires [stan53] by pethelman Jul 14, 2009 (8:09 pm)
Replying to: stan53 (Mar 06, 2009 6:50 am) Check the motor mounts. Most likely the electronic mounts (front and/or bad) have failed in the "soft" mode and are allowing excessing engine movement while driving. I'm suspecting this can even cause the grinding when going around turns due to some sort of axle alignment issue.
#480 of 522 Re: Suspension Problem with 2002 I35 [srs3] by pethelman Jul 15, 2009 (7:48 am)
Replying to: srs3 (Dec 11, 2008 8:55 pm) Motor mounts Primarily the front and back (both electronic), but also check the right front mount. Replies to this message: 59fan (Jul 15, 2009 8:10 am) pethelman (Jul 17, 2009 8:12 am)
#481 of 522 Re: Suspension Problem with 2002 I35 [pethelman] by 59fan Jul 15, 2009 (8:10 am)
Replying to: pethelman (Jul 15, 2009 7:48 am) So Thats what that low thudding/clunking sound is coming from for real?. My 2002 I35 has 58k on it and it makes the thud sound (front right suspension) when I go over ruts and potholes. I took it into Frontier Infiniti Dealer for my 60k service here in San Jose, and they told me that the motor mount was going out that was causing this problem. I did not have them fix it until I got a second opinion. Should I just forgoe the second opinion from a different mechanic, and take this forums advice. The noise does not effect the steering or driving abilities of the car, just really annoying. BTW, This has to be one of the BEST cars I have ever owned. Just wish that the stereo/cruise controls on the steering wheel were illuminated at night, hard to use them when its dark. Just have to really remember what button is what. Replies to this message: pethelman (Jul 17, 2009 8:12 am)
#482 of 522 After the Accident by chuck_j Jul 15, 2009 (2:59 pm)
I have a 2004 Infiniti I35 and yesterday I let a relative of mine borrow my car to go to a job interview and she got into an accident. There is front end damage (not heavy) just the bumper really,but now the the "check engine, slip,and tcs" lights are all on, which never ever came off since I've owned this car. Now on my way from work, the car stalled.... twice... What do you guys think can be the matter. Im taking the vehicle to get an estimate on the damage tomorrow...   Hopefully, it just a sensor....   Oh and this is the second accident in less than a year...
#483 of 522 Re: Suspension Problem with 2002 I35 [59fan] by pethelman Jul 17, 2009 (8:12 am)
Replying to: 59fan (Jul 15, 2009 8:10 am) Yeah, I don't understand why the I35 is having this problem. I also have a 96 i30t (5 speed) and a 98 i30. The 98 has the same motor mount configuration, 2 electronic front and back, with passive on the right side. They look nearly identical to the 2002 i35 setup. However, when comparing the two, the 98 had much less engine movement when revving the engine with the brake on. It certainly had none of the bottoming out clunking motion that I observed with the i35. Obviously the 3.5 has much more power, and maybe that is contributing to the mounts wearing out sooner. Incidently, the 96 does not have electronic mounts, and the motor is very stiff compared to the other two (also have more vibration at idle, which may be the tradeoff).   http://www.infinitipartsusa.com/partlocator/index.cfm?action=getJointLocator&sit- - eid=55&chapter=&Sectionids=0,2453&groupid=51840&subgroupid=8764&componentid=0&ma- - ke=14&model=I35&year=2002&graphicID=3821620&callout=9&catalogid=3&displayCatalog- - id=0   If you can follow the above link, check out the diagram and note part nos. 13 and 14. I'm also very curious about these "pads" and wonder if they may have something to do with the noise. I need to check the service manual and/or crawl under to get a better idea. I'm at least going to replace the right front mount first since it can be done separately from the front and rear mounts. I'll report back on the results.   Incidently, there is a company out there (Mission Trading) that makes a solid rubber mount for the front only, and I half wonder if using that mount might not help. So far I have not found anyone who has used it to get some feedback, and they are expensive and NO fun to replace, so it would be real labor of love to try both.
#484 of 522 I have a 1996 Infiniti I30 with starting problems by jhayes9835 Jul 29, 2009 (8:21 am)
Sometimes my car will start and run fine. Other times, after it has sat for a while, it will start up and idle very rough or it will not start at all. I checked the vacumn hoses and could not see any problems. I also replaced the air flow sensor with a used one. It ran fine but I still had the same problem after it sat awhile. My daughter depends on this vehicle to get back and forth to work, so any suggestions would be greatly appreciated. Thanks Replies to this message: atma97 (Aug 06, 2009 6:04 pm) jhayes9835 (Aug 10, 2009 5:29 am) jhayes9835 (Aug 11, 2009 9:34 pm) and 1 more...
#485 of 522 Re: raddle noice [lmj] by jlgberkeley Aug 04, 2009 (2:30 pm)
Replying to: lmj (Jun 22, 2004 6:21 pm) I know this sounds weird but check your seat belts. My wife had the same problem and they replaced two seats, so i went with her on the way to the dealership and we started hearing the noise, i looked back and notice one of the back seat belts was loose and tightened it and the noise went away...guess i should have gone with her the first time to the dealership.

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