Hey fellow CX-7 owners, I am new to the postings but have a 2005 Mazda 6 and now this 2007 CX-7. Anyone out there experience the fast idle of their CX-7? Mine is garaged and once left overnight you start it and it hits 2100 RPM and then slowly comes down to a point where you can put it in gear. Dealer said there are no bulletins on it and no codes on the computer to read and that 2100 is within spec. So they did nothing. Is it just me or does that seem like it needs brought down 500 RPM or so. Maybe I am too old school where non-turbo cars should be at about 1500 when you start them. Appreciate letting me know what yours cold start up RPM's are Thanks All
FAST idle when cold WOW
- Thread starter barnman12
- Start date
knowledge007
Banned
Normal idle on a cold start my forum friend...
Well I guess the cold Idle is OK Thanks!~!
Hey thanks for the replies fellow owners, good to know that others run at this speed when cold also. This is my wifes but I am really starting to like it. You know with the turbo and that sweet 6 speed auto I bet it will give my Mazda 6s with a 5 speed and v6 a run for the quarter mile.! Off to wash and wax it tomorrow, first time. Thanks all!
Hey thanks for the replies fellow owners, good to know that others run at this speed when cold also. This is my wifes but I am really starting to like it. You know with the turbo and that sweet 6 speed auto I bet it will give my Mazda 6s with a 5 speed and v6 a run for the quarter mile.! Off to wash and wax it tomorrow, first time. Thanks all!
knowledge007
Banned
barnman12 said:
It will not give them a run for there money. It will take the money and then leave them behind...
Forget to turn it off and it will fall on it's face during the launch.same problem
I don't think that high idle (2100-2300 rpm), or at least its slow dropping to normal after cold start, is normal ! My dealer says there is a problem and today changed the throttle body. No help. Basically the problem is that you really cannot shift from P to R before idle drops below ca. 1200 rpm or lower, which takes at 40 F pretty much 1 min 15 seconds (quite repeatable), which is too long to be normal. Otherwise the tranmission 'kicks back' quite heavily. Any good comments or suggestions ? I will go back to the dealer tomorrow so that they can continue chasing the problem.
I don't think that high idle (2100-2300 rpm), or at least its slow dropping to normal after cold start, is normal ! My dealer says there is a problem and today changed the throttle body. No help. Basically the problem is that you really cannot shift from P to R before idle drops below ca. 1200 rpm or lower, which takes at 40 F pretty much 1 min 15 seconds (quite repeatable), which is too long to be normal. Otherwise the tranmission 'kicks back' quite heavily. Any good comments or suggestions ? I will go back to the dealer tomorrow so that they can continue chasing the problem.
2000 RPM immediately after startup is normal and assists in heating up the catalytic converter. If you hold down the throttle alittle and release it just after it starts, the engine will idle at ~ 1100 but, not sure that is a good thing. In any case, one should wait until the engine rpm drops to ~ 900 or so before shifting into drive-better for the AT than a 2000 rpm cold slam shift. I think the dealer who is trying to fix the 2000 rpm high idle is misinformed. I hope guitarman will keep us informed as to the outcome. Ed
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Cerberus51
Member
totally normal operation (thumb)
SuperStretch18
Member
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- '07 CX-7 Sport, Black on Black; '04 Mazda3s
BlackCherry06
Member
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- '17 CX-3 GT
It may be possible to change ECU programming to eliminate this, but it can cause emissions problems down the line. Heating up the cat quickly is necessary. I've never owned a F.I. vehicle that didn't do this. My Civic Si's were the worst, but I never considered it abnormal. Have some patience and let it go through its morning routine before driving away.
Thanks for good comments to everybody ! The reason why I'm still a bit worried is that I have also '07 Honda CRV, and during the winter months I have had several rental SUV's, including Ford Edge, Huyndai Santa Fe, Nissan Rouge, and Jeep Liberty. None of those cars does anything even close to CX7 ! I'm not so much worried about the high idle but that CX7 allows engagement of transmission without dropping the idle to 'normal' first. It seems to me that in all those other cars the control system is clever enough to do that and engages the transmission only after a short delay and after dropping the idle to ca. 1000 rpm or so. CX7 does it straight away, and causes the heavy 'clunk' that doens't sound very healthy. It also seems to me that if I go directly to "D" without stopping at "R", there is no problem !? The questions that I have are that a) is EVERYBODY seeing this exactly the same thing, or are there exceptions (anybody ?), b) did you have this from the very beginning or did it start only after having the Variable Swirl Shutter Valve actuator replaced and the PCM reprogrammed (recalls 4807H and 4907H), as it seems to be in my case. In any case I DID NOT see this behavior until after about 3 months and having the above mentioned recalls done ! Oh, about the dealer, after working with my car for several days and making a lot of calls to Mazda, they finally told me that all this is normal....Still, if this is normal for CX7, to me it seems very odd and 'stupid' and quite different from all the other '07 and '08 cars.
One more question: what about '08 CX7, does it behave in the same way? My experience is that it doesn't because I tested a couple of 08's at the dealer's lot. Idle jumped to about 1700-1800 at start at 42 F, came down to 1500 in 10-15 seconds, and when I shifted from "P" to "R" at this point, it was fine: not clunk, just smooth shift !
SuperStretch18
Member
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- '07 CX-7 Sport, Black on Black; '04 Mazda3s
Mine's a 2007 and has done this from the start. 30 - 45 seconds and the rpms drop to about 1500. Once I hit that point, I can shift into gear without the thunk. I've found that anytime you shift into first at higher than 1,500 rpms (either up or down), I get the thunk.
So you have a "Normal" CX7 and the dealer learned something. My 07 jumps to ~ 2100 at overnight cold start. By the time I put seat belt on, check the mirror settings ( like 1-2 minutes) it idle is at ~ 1000 rpm and I shift and go. What is so important that you must slam the transmission into gear at 1500 + rpm and save one minute?
Oh, at this (old) age 2 minutes of doing nothing is a veryyyyy long time....
I'm practically the only user of this car and therefore I don't have to do any seat or mirror adjustments, and therefore 'just sitting there' feels somewhat stupid....even my satellite radio doesn't come on because the car is still in the garage and doesn't 'see' the satellite ! Anyway, as I wrote yesterday, the CX7 seems to be the only car that I have ever driven (and I have driven a lot of different makes and models....) that behaves like this, and that's the reason why I'm worried about this. It of course sounds much better to hear that it's not just MY car, but it doesn't remove the problem (and it IS a problem, as I see it.....
)
btw, at least in cold weather it takes only about 3 hours and I again have to wait 2 minutes before CX7 is ready to go. If this happens, say 3 times a day, it makes 6 minutes a day, which in a year makes 2190 minutes, which is 36.5 hours, which is basically one working week !! Here we come to the basic question, how much is much, and especially, how much is too much ?
I'm practically the only user of this car and therefore I don't have to do any seat or mirror adjustments, and therefore 'just sitting there' feels somewhat stupid....even my satellite radio doesn't come on because the car is still in the garage and doesn't 'see' the satellite ! Anyway, as I wrote yesterday, the CX7 seems to be the only car that I have ever driven (and I have driven a lot of different makes and models....) that behaves like this, and that's the reason why I'm worried about this. It of course sounds much better to hear that it's not just MY car, but it doesn't remove the problem (and it IS a problem, as I see it.....)btw, at least in cold weather it takes only about 3 hours and I again have to wait 2 minutes before CX7 is ready to go. If this happens, say 3 times a day, it makes 6 minutes a day, which in a year makes 2190 minutes, which is 36.5 hours, which is basically one working week !! Here we come to the basic question, how much is much, and especially, how much is too much ?
BlackCherry06
Member
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- '17 CX-3 GT
My mom's 85 Accord SE-i was our first fuel-injected car and it always jetted straight to 2100 rpms at startup, and dropped at different rates depending on how cold it was. We double-checked with Honda to make sure this was right and they said it was a necessary evil for emissions reasons, but it wasn't something we had to adjust our lives around. They just told us to crank it up and go if we wanted to.
While I have to say that hearing a 'clunk' isn't desirable, it's probably just your transmission or engine moving within the confines of the mounts, along with a shifting exaust system. So, if you don't want to wait, crank it and go. If a problem arises, you have a warranty.
While I have to say that hearing a 'clunk' isn't desirable, it's probably just your transmission or engine moving within the confines of the mounts, along with a shifting exaust system. So, if you don't want to wait, crank it and go. If a problem arises, you have a warranty.
Hmmm...this is getting pretty interesting...I didn't know that you have driven my CX7...oh, you haven't because you say that I don't have to wait for 2 minutes - which I in the worst case do ! It seems to me that some people don't want to talk about any problems with Mazda CX7, which makes me wonder....
Anyways, here are the facts once again: I took my CX7 to the dealer and explained that in cold weather it takes up to two minutes before I can safely shift from P to R. The dealer verified the problem and agreed that this is not normal. They replaced the throttle body (they were pretty sure that this was the problem..) and reprogrammed everything several times in different ways and in different order. After a couple of days, and after consulting Mazda several times, they decided that this behavior is 'normal'. It seems that I'm not the only one, check this out: http://reviews.cnet.com/suv/2007-ma...essageSiteID=7&messageID=2351761&cval=2351761
Don't shoot the messenger, I'm only reporting the simple facts, like it or not !
