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Mazda CX-7 Starting Problems

21 messages,  Last post on May 31, 2008 at 10:10 AM

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#2 of 21 Re: new cx7 and starting issues [michele_2005] by carlitos92 Sep 16, 2007 (6:15 am)
Replying to: michele_2005 (Sep 15, 2007 10:53 pm) That could be a lot of things, but it's not normal, regardless of what version of software is in the engine computer. Let the dealer figure it out - just hope they can recreate the symptoms.   -c92
#3 of 21 Re: new cx7 and starting issues [michele_2005] by vbbuilt Sep 16, 2007 (6:49 am)
Replying to: michele_2005 (Sep 15, 2007 10:53 pm) Most unusual. I have no idea what could be the problem.   Adding to what carlitos recommended, keep detailed records - it's wise no matter what car you own.   Vince. Replies to this message: michele_2005 (Sep 16, 2007 9:06 am)
#4 of 21 Re: new cx7 and starting issues [vbbuilt] by michele_2005 Sep 16, 2007 (9:06 am)
Replying to: vbbuilt (Sep 16, 2007 6:49 am) Thanks for the reply, I will start taking more detailed notes   Michele
#5 of 21 Re: new cx7 and starting issues [michele_2005] by mihai1980 Oct 01, 2007 (5:44 pm)
Replying to: michele_2005 (Sep 15, 2007 10:53 pm) Hi,I have exactly the same problem with my CX7.I bought the car 3 weeks ago and it happens twice so far.First they told me that they have to do some settings?!?!?!But the next day it happens again.Now it's in the service and they don't know what is the problem.Please let me know if you find something.... Thanks a lot, Mike Replies to this message: michele_2005 (Oct 03, 2007 12:52 am)
#6 of 21 Re: new cx7 and starting issues [mihai1980] by michele_2005 Oct 03, 2007 (12:52 am)
Replying to: mihai1980 (Oct 01, 2007 5:44 pm) Will do Mike, I will update you in few days. Michele
#7 of 21 Re: new cx7 and starting issues [michele_2005] by sweetpeas Oct 04, 2007 (7:40 am)
Replying to: michele_2005 (Sep 15, 2007 10:53 pm) I had the same jerking issues with my CX-7. Ask the techs to look at the belt on the car. It took the techs in Dallas 16 days to find discover that it had nothing to do with the computer settings.   Here's what the district manager told me: · The drive belt had been installed 1 tooth to engine side over the edge of pulleys, this caused the belt to be torn off at about 1/6 width (1 tooth). · Some pieces of belt materials and fuzz stuck/touched the crank position sensor and trigger wheel and would then interrupt the crank sensor signal momentary. (approximately 50 milliseconds) · The Powertrain Control Module would detect the momentary loss of signal from the crank sensor and would kill the fuel injection, which was causing the jerking. Replies to this message: mihai1980 (Oct 04, 2007 3:53 pm)
#8 of 21 Re: new cx7 and starting issues [sweetpeas] by mihai1980 Oct 04, 2007 (3:53 pm)
Replying to: sweetpeas (Oct 04, 2007 7:40 am) thanks mike
#9 of 21 starting in the cold block heater? by lwdb Oct 13, 2007 (10:50 pm)
Does anyone have a problem with starting their vehicle in the cold? Bought my car a couple months ago and they said it had a block heater. Now that it is getting cold went to find the cord to plug in and could not findit and now they say there is no such thing. I am thinking it's going to be hard on starting Replies to this message: carlitos92 (Oct 14, 2007 12:56 pm)
#10 of 21 Re: starting in the cold block heater? [lwdb] by carlitos92 Oct 14, 2007 (12:56 pm)
Replying to: lwdb (Oct 13, 2007 10:50 pm) I guess "cold" is relative, but my CX-7 sleeps outside and I had no problems in the 20s last winter.   There were issues with an "IMRC valve" recall; I think it just affected the 2007s, but cold weather made this defective part act up and cause real problems.   -c92
#11 of 21 starting by lwdb Oct 15, 2007 (8:52 am)
I live in Canada where it gets to be -35C in the winter. Vehicles sometimes don't start unless being plugged in.

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