2007 Mazda CX-9 Fuel system Problems
- Complaints
- 5about this part
- Share
- 6%of 86 total for the year
- Median mileage
- 96,784miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the fuel system of the 2007 Mazda CX-9, 6% of the 86 complaints for this model year. Where a mileage was given, the median is 96,784 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“While driving on the williamsburg bridge there was a slight incline during this time the vehicle was trying to accelerate and that's when it started loosing power and started misfiring. Fortunately, this happened very early in the morning and there were no vehicles except mine. When I got to the other side of the bridge I got off the expressway immediately.”
NHTSA complaint #10408255, filed 2011-06, 34,543 miles“Traveling on interstate engine suddenly starts to stutter. Push down on the gas and there is no power. Car cannot go over 40 MPH. Engine light comes on. Take car to my local mechanic. Informed that ignition coils #1,2,4 are ruined. They are replaced, 12 hours later ignition coil #2 fails again. Mechanic gives me Mazda bulletin #01-026/11 calling out issues with PCM and how PCM will cause mis-firing of ignition coils causing the coils to fail prematurely. Coil #2 when replaced was charred and split and was leaking oil. …”
NHTSA complaint #10583135, filed 2014-04, 124,230 miles“There is a systemic evap system issue where there is a leak that either shows that the gas cap is off or the check engine code for large evap leak. Message board traffic shows this as a problem across multiple year models and makes in the Mazda cx line, especially the CX-9. Everyone, including myself, reports the same issue: light comes on, and then replace gas cap. Light comes back on and then it is multiple trips to the dealer for them to find where the evap leak is.”
NHTSA complaint #11376975, filed 2020-11, 90,000 miles“I took the car to pep boys and they told me to call because my whole gas tank is bad and it should have a recall on it .and also ford said the same....so my truck have a major gas leak and a rusted out gas system.”
NHTSA complaint #11321032, filed 2020-04“The contact owns a 2007 Mazda cx9. The contact stated that the vehicle was parked in the residential garage when he smelled an extremely strong odor of fuel outside of the vehicle. There was also an overpowering gasoline odor from inside the vehicle when the vehicle was in motion. The vehicle was taken to both an independent mechanic and authorized dealer where they informed the contact that there was a rusty seam within the fuel tank. The part needed to make repairs was unavailable and the contact was advised that the dealer would repair the vehicle once the part became available. …”
NHTSA complaint #10402526, filed 2011-05, 103,568 milesRelated service bulletins
- 10202695Oct 13, 2021Ethanol is becoming a common additive in gasoline. Gasoline containing ethanol is likely available at your local gasoline station. Typical blends of ethanol include E10 and E85…
- 10154879Mar 20, 2019In support of the new MRT distribution, Mazda will ship to dealers a new Dual Purpose Diagnostic Leak Detector beginning March, 2019. Training videos will be posted to MGSS…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 3 | 16% |
| 2019 | 2 | 4% |
| 2018 | 7 | 5% |
| 2017 | 6 | 10% |
| 2016 | 8 | 7% |
| 2015 | 1 | 3% |
| 2014 | 5 | 9% |
| 2012 | 4 | 2% |
| 2011 | 1 | 1% |
| 2010 | 2 | 1% |
| 2008 | 2 | 1% |
| 2007 | 5 | 6% |
Other parts of the 2007 Mazda CX-9
37 complaintsAir bags
18 complaintsTransmission and drivetrain
12 complaintsSteering
9 complaintsBrakes
7 complaintsElectrical system
6 complaintsOther or unknown
6 complaintsWheels
5 complaintsBody and structure
4 complaintsEngine
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsElectronic stability control
1 complaints
← All problems reported for the 2007 Mazda CX-9
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology