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Mazda CX-7 Transmission Questions

91 messages,  Last post on Jun 03, 2009 at 2:22 PM

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#83 of 91 Re: klunk noise on abs brakes [eperez1] by wwest Jan 03, 2009 (11:09 am)
Replying to: eperez1 (Nov 10, 2008 6:05 am) Drive forward to park the car in the evening then shift into reverse upon starting out the next morning and you will often hear sort of a "klunk" sound as the brake pads "unseat" from their overnight stuck "forward" position(***) against the rotor and then move "backwards" a very small amount in the calipers, and "strike" the caliper stops.   *** Especially after a rain or wet day. Replies to this message: bobcx7 (Mar 04, 2009 1:02 pm)
#84 of 91 Re: How many Qts of oil needed with change of filter also [zoom49] by wwest Jan 03, 2009 (11:16 am)
Replying to: zoom49 (Jan 01, 2009 7:41 pm) Due to newer design aspects it might be EXTREMELY important to not overfill, nor underfill, the ATF sump. Many cars now have SEALED transaxle sumps for this reason. Apparently as little as 1/8 of a quart can be the difference between over and/or under.   To much ATF and it will be stirred, frothed, by the rotating gearset, resulting in an air/oil mixture. To little and early morning, COLD, shifting will be impaired.
#85 of 91 Can't put car in park by jilliang Feb 08, 2009 (5:49 pm)
Can anyone tell me why all of the sudden, my CX-7 won't go into park? All other gears are working, car is drivable, but won't go into park. Replies to this message: wwest (Feb 09, 2009 10:26 am) jilliang (Feb 11, 2009 6:03 pm) wwest (Feb 11, 2009 8:20 pm)
#86 of 91 Re: Can't put car in park [jilliang] by wwest Feb 09, 2009 (10:26 am)
Replying to: jilliang (Feb 08, 2009 5:49 pm) There is a solenoid actuated lock that prevents the gear shift from being moved FROM the park position usless you have your foot firmly on the brake. My guess would be that the lock has failed in a position that prevents you moving the shifter INTO park.   Look for the lock over-ride (in the owners manual) and actuate it and see if you cane move the shifter to park. Replies to this message: jilliang (Feb 11, 2009 6:03 pm) wwest (Feb 11, 2009 8:20 pm)
#87 of 91 Re: klunk noise on abs brakes [eperez1] by mazdacx7 Feb 11, 2009 (5:49 pm)
Replying to: eperez1 (Nov 10, 2008 6:05 am) Yeah, I noticed that too, always happen in the morning and just one time, the rest of the day it does´not make that sound, so I just ignored it. Mine it is a year old now and has 5k.
#88 of 91 Re: Can't put car in park [wwest] by jilliang Feb 11, 2009 (6:03 pm)
Replying to: wwest (Feb 09, 2009 10:26 am) Hi WWest,   Thanks for your feedback! I was unable to figure it out myself, so took it in to the dealership. I did share with them your email and suggestion. They said they never heard of such a thing happening and was especially surprised at learning that I was able to not only drive the car, but remove the key in neutral - apparently you aren't supposed to be able to do this. Go figure. We'll see what they come up with tomorrow! Anyway... thanks again for your input! - best, jillian Replies to this message: wwest (Feb 11, 2009 8:20 pm)
#89 of 91 Re: Can't put car in park [jilliang] by wwest Feb 11, 2009 (8:20 pm)
Replying to: jilliang (Feb 11, 2009 6:03 pm) If you were able to remove the key in neutral then the electrical interlock system "thought' the system was in park and that's why you could not shift into (nor out of) park.
#90 of 91 Re: klunk noise on abs brakes [wwest] by bobcx7 Mar 04, 2009 (1:02 pm)
Replying to: wwest (Jan 03, 2009 11:09 am) Yes, this is exactly what I get on my 2008 CX-7. In the morning when I first back up, as soon as I hit the brakes I hear a loud klunk sound (or maybe more of a "snap" sound) and I can feel the shock through the brake pedal. Then I drive forward and the first time I hit the brakes I hear the same thing.   Then I continue driving forward and everything is fine when I hit the brakes, until the next time I put it in reverse -- then I can reproduce the cycle again. But after about an hour of this it goes away, and I can't reproduce the cycle anymore, until I let it sit overnight. Same thing again the next morning, particularly if it's cold out. On warmer days it doesn't happen as much.   I've taken it to the Mazda dealer 3 times and they claim there's no known problem and they don't really know what it is. The first time they couldn't reproduce it after putting it on the hoist, the 2nd time they inspected the brakes and didn't really do anything, and the 3rd time they put some sort of sealer on the brakes pads and tried to charge me for it -- yeah, right. That seems to have helped for the past 2 days, but now I'm worried that they're just masking a problem that could have a long-term impact.   Is there some part that Mazda should be replacing?
#91 of 91 Re: Jerking Transmission [tbear1130] by bcp1 Jun 03, 2009 (2:22 pm)
Replying to: tbear1130 (Dec 22, 2006 5:45 pm) I would also be curious about the problem. I have 12,300 miles on my CX-7GTFWD they had changed the module last year, but I notice it doesnot always go into 6th gear without letting off on the accellerator. I get the downshift sometimes on hills, but it is pretty flat where we live. My gas milage has dropped significantly since they last worked on the car which I think was Dec. 08. I made 22.5mpg on a hwy trip this past weekend, but my intown driving with heavy traffic has dropped to 15.1mpg which is the lowest I have ever gotten in town. I notice it spends a lot of time in 4th & 5th gear.

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