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SUVs Mazda CX-9 Mazda CX-9 throttle problems in mountains
11 messages, Last post on Jun 10, 2009 at 11:40 AM
You are in the Mazda CX-9 Forum. Your Hosts are steve_ & tidester
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| After researching the CX-9 thoroughly, I bought a new 2007 4 days ago. I live in the mountains of North Carolina. Driving up, the not so steep, mountain, the throttle completely shut down leaving no power. The problem continued and the service manager and Mazda technician kindly came out to see if it was true. The same problem existed. They also brought 2008 CX-9 with them and the same problem existed when that vehicle was driven up the mountain. I have been driving this mountain for 20 years with all types of vehicles, including cheap cars and never had a problem. I AM BESIDE MYSELF. ANY IDEAS? | |
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Replying to: stevea4 (Nov 23, 2007 3:47 pm) How high were these mountains? I wonder it something was off with fuel/air ratio due to altitude. Almost sounds like vapor lock (gas turns to vapor at lower temps than normal), but it's not that common in fuel injected cars, unless you're using gas that has ethanol in it (ethanol is more volatile than gas, I believe). Try using non-ethanol gas if you were using a methanol mix (and see if the dealer was using methanol gas too). Otherwise, sounds like fuel pump issues, but that sounds unlikely since the 2008 CX-9 had the same issue. Maybe the dealer improperly prepped the 2 cars?...(there's fluids to be topped off when they arrive from the port).
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Replying to: nxs138 (Nov 23, 2007 6:06 pm)
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Replying to: stevea4 (Nov 23, 2007 7:25 pm) The Aisin/Warner 6-speed transmission uses a different (JWS3309-compatible fluid) compared to "regular" ATX fluid. A single half a cup of the WRONG fluid will completely destroy the transmission by causing the clutch packs to lock up, requiring a complete rebuild/replacement of the transmission to restore functionality. CX-9's come with a half a quart low for ATF (and engine oil) which gets topped off upon delivery.
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Replying to: nxs138 (Nov 23, 2007 8:33 pm) Ken
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Replying to: kharris (Nov 24, 2007 6:38 am) Click here for forum discussion -- it's the first reply to the original message. |
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Replying to: stevea4 (Nov 23, 2007 3:47 pm) CX9 and CX7vehicle manufactured before MAY 1 2008 have these throttle problem this can be fixed, by the dealer.. i am not able to attach the pdf file...if you guys need please let me know i can email to you.... Goodluck Karthik 
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Replying to: karthikcx9 (Oct 14, 2008 9:48 am) Thanks!
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Thamks to Karthikcx9. I did a quick type-up. Please forgive the typos.. Your dealer can find the whole bulletin from their computer. DTC: diagnostic test code ATX: automatic transmission TCM: temperature control module ATF: automatic transmission fluid ------------------------------------------ REUCTION IN POWER WHEN CLIMBING A STEEP HILL Bulletin No. 05-008/08 Issued: 05/23/2008 Applicable: 2007-2008 CX9 with VINs lower than JM3 TB**** ** 159178 (produced before May 1, 2008) Description: Some customer may complain that the vehicle power is reduced suddenly when climbing a steep hill. After a couple of minutes of idling, the symptom disappears. No DTC is stored. The TCM limits the torque at lower load than required to protect the ATX causing the reduction in power. As a mass-production change the TCM programming has been modified and DTC P1783 has been established for the torque limitation at high ATF temperature. Customers having this concern should have their vehicle repaired using the following repair procedure. Repair Procedure: .....
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Replying to: ceric (Oct 14, 2008 10:22 pm) Do you have a copy of this TSB? If so, could you email it to me? Thanks a million, R |
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