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Mazda CX-7 Noise and Vibration

27 messages,  Last post on Aug 16, 2008 at 7:22 AM

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#1 of 27 Mazda CX-7 noises by zewie1 Aug 24, 2007 (12:58 pm)
So i purchased my Mazda CX-7 just under a year ago and about 4 months ago it started to make this very loud ticking, clanking noise (lost for the proper comic sound). this noise comes and goes very quickly only when accelerating. i cant reproduce this noise for the technicians while driving..so i just sit there and look like an idiot with my lips flapping trying to get my point across. the technicians say they will take a look and have come up with no answers. so now im stuck with a car that has an apparent problem but no way to diagnose it.... anyone out there have any of the same issues..or can help... by the way this is one thing that is not tripping the CEL...imagine that! Replies to this message: zoom49 (Aug 25, 2007 8:55 am) zewie1 (Aug 25, 2007 4:36 pm) slw5 (Feb 01, 2008 7:57 am)
#2 of 27 Re: Mazda CX-7 noises [zewie1] by zoom49 Aug 25, 2007 (8:55 am)
Replying to: zewie1 (Aug 24, 2007 12:58 pm) Sounds like it could be knocking (detonation)due to either lack of premimum fuel, or it"s possible you have an early build CX-7 that need the ECU reprogramed. We have always used premimum gas but just had our ECU updated. If when you back off the gas the noise goes away, this is the most likely issue. Replies to this message: zewie1 (Aug 25, 2007 4:36 pm)
#3 of 27 reply by outbackeddy Aug 25, 2007 (12:05 pm)
If it is gas related, you should be able to demonstrate it to the dealer. I think we need more information to assist you in trying to determine a cause. Ed Replies to this message: zewie1 (Aug 25, 2007 4:36 pm) carlitos92 (Aug 25, 2007 5:37 pm)
#4 of 27 Re: reply [outbackeddy] by zewie1 Aug 25, 2007 (4:36 pm)
Replying to: outbackeddy (Aug 25, 2007 12:05 pm) ok so i admit i dont use premium fuel, but splurge for the synthetic. but in fact the noise does go away when i lay off the gas. the technician test drove the car and he wasn't able to recreate the noise. and i tried numerous times to get it to make the noise while another person was in the car and still couldn't make the noise. it as if the car has a mind of its own and only does it when it wants to.. by the way thanks for the help any new ideas.........? Replies to this message: carlitos92 (Aug 25, 2007 5:37 pm)
#5 of 27 Re: Mazda CX-7 noises [zoom49] by zewie1 Aug 25, 2007 (4:36 pm)
Replying to: zoom49 (Aug 25, 2007 8:55 am) what is ECU?
#6 of 27 Re: reply [zewie1] by carlitos92 Aug 25, 2007 (5:37 pm)
Replying to: zewie1 (Aug 25, 2007 4:36 pm) ...splurge for the synthetic what? oil?   that's probably a good policy - but most likely unrelated to the noise you have.   what i would do is run a tank full of 93 octane gas in the car and see if the noise disappears. run the tank as empty as you can before putting the premium in.   detonation is temperature-related as well, so it may be that when you visited the dealer, it was cooler?   incidentally "ECU" is the engine computer... manufacturers can change fuel delivery, timing, and all sorts of things just by reprogramming the computer. with the 2007's, mazda upgraded the software at least once to diminish turbo lag symptoms.   -c92
#7 of 27 Side Mirror Vibration by anxs Oct 30, 2007 (7:17 am)
Has anyone experienced mirror vibration? When my car was delivered the driver side mirror shimmied and it gave me a headache to look at. Not only that but any time I listened to the stereo with the slightest bit of bass in it it would vibrate real loud. Part of the reason I choose this vehicle was because of the stereo package and I can't even enjoy it. They replaced the whole mirror assemply once and it's only slightly better than it was before. What should I do now? I'm sure they think I'm insane. Replies to this message: apatt (Dec 03, 2007 6:39 am) vbbuilt (Dec 05, 2007 4:46 am) morrison0880 (Dec 11, 2007 2:06 pm) vbbuilt (Dec 11, 2007 3:56 pm) morrison0880 (Dec 12, 2007 6:03 am) and 2 more...
#9 of 27 Bumpy Ride? by apatt Dec 03, 2007 (6:39 am)
Replying to: anxs (Oct 30, 2007 7:17 am) Has anyone else noticed a wobbly or bumpy feeling while driving the cx-7? I test drove 2 different 2008 cx-7 sports both were front wheel drive. Only diff was one had a power seat and the other didnt. The car without the power seat drove a lot rougher than the car with the power seat. Is it possible that it is just my imagination? Replies to this message: vbbuilt (Dec 05, 2007 4:46 am)
#10 of 27 Re: Bumpy Ride? [apatt] by vbbuilt Dec 05, 2007 (4:46 am)
Replying to: apatt (Dec 03, 2007 6:39 am) The only way you can tell if it's NOT your imagination is if you drove both vehicles over the exactly the same route, same driving conditions, same speed, traffic conditions, etc. The presence or lack of an accessory, does not make a difference in suspension, drive train or engine, in the FWD sport.   What I'm thinking is that you may have actually stumbled onto a problem, peculiar to that that one unit. Recommend you go to another dealer and test drive another vehicle and see if you notice the same problem.   Vince.

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