Mazda Cx-7 owners have reported 15 problems related to gas recirculation valve (egr valve) (under the engine and engine cooling category).
As I was driving my Mazda ( with a turbo engine) along the highway it began to decelerate on its own and making a loud knocking/grinding noise. It stopped on the road going up a hill with no turnouts. So it appears that the turbo blew up. It will start, but I cannot go anywhere. I have also had to replace gaskets on my oil filter housing unit, as the stock gaskets were faulty and causing a severe oil leak. Also, my emissions regulation ( egr) valve is bad and therefore will not pass smog. Each of these issues I am seeing more and more complaints about from other owners of the same vehicle. Mazda has made a horribly defective car and refuses to do anything about it except to claim owner negligence. I bought my car with 40k miles on it and it has been falling apart from the start. There is absolutely no excuse and this is not owner negligence, it is Mazda negligence and refusal to make anything right on their completely defective vehicles.
See all problems of the 2008 Mazda Cx-7.
Had to replace the a/c compressor that went bad, was a recall on them but my warranty was out. Then now 11/8/13 I am being told that my egr valve is bad and needs to be replaced and it so happens guess what the emissions warranty has ran out. I have seen a lot of complaints on line about the a/c compressor and now the egr valve.
The vehicle is a 2008 Mazda Cx-7 bought as a pre-owned certified from Mazda dealer in ramsey, NJ. It had the engine light on and I took it immediately to the dealer near my work (colmar, PA) and it was diagnosed with code p0401, egr valve failure. With under 40k I was not expecting this to fail and the repair cost was $718. (diagnosis, parts and labor). I looked up online and saw that it is a frequent issue with people having much newer car than mine. Obviously it was not covered under warranty and I had to pay from my pocket. But I am disappointed with the repair as the next day the brake light came on. It comes on in the morning and stays on intermittently. It finally goes away after 15-20 minutes of driving. I plan to go to the dealer tomorrow to see if this is something that resulted during yesterday's repair.
Check engine light due to the egr valve = exhaust gas recirculation valve being stuck in the open position with 51k miles. The dealership replaced the valve (part number l3k9-20-300a) and the gasket (part number lf6t-20-305) for $882. 63 being that it was not covered under my certified pre owned warranty or my extended warranty since it is part of the emissions package I paid, in full, out of pocket. I have checked several online forums and have seen this is a common occurrence for 2007 cx7 between 25k and 55k miles. I think this is a much larger problem than regular wear and tear requiring an investigation.
See all problems of the 2007 Mazda Cx-7.
The contact owns a 2008 Mazda cx7. The contact stated that the check engine warning light illuminated. The vehicle was taken to the dealer and a diagnostic was performed. The failure was located as the emissions gas recirculation valve. The dealer replaced the egr valve and the failure was repaired. The failure and current mileage was 66,600.
Purchased vehicle used at 41,000 in Mar 2012. First issue: egr valve had to be replaced at 44,000 miles in may 2012, not covered under warranty ("not a California emissions vehicle"). Had 45,000 mile service performed. Dealership service tech also provided service history from previous owner and verified it was serviced regularly. Service tech confirmed this was a known issue with the vehicle, but it was not covered under warranty unless it was a CA emission vehicle. Also not covered under aul extended warranty purchased with vehicle. Cost: $750 to replace egr. Second issue: Dec 2012, 52,000 miles, driving for less than a mile in congested traffic at 15-20mph. Vehicle began spewing white smoke out of exhaust. Immediately pulled off road, called for tow truck. Waited 3 hours with two children under 8. . . Vehicle was taken to same dealership for evaluation/repair. I asked them to evaluate turbo, based on white smoke and slow driving/idle, as consistent with other known issues. Was informed engine mount 3 filled with oil, which coated underside of vehicle, causing smoke. Engine mount failure covered under 60,000 mile factory warranty. Service technician indicated they haven't seen this issue before (however, I see it in several posts online). Service technician commented I was lucky that this did not result in a more catastrophic event (fire, total engine failure). He also commented there is "a lot of stress on mount #3" and it was hard to find the replacement part. He acknowledged turbo issues, but claims my turbo is okay (for now). Mazda needs to recall and fix these well known and documented engine issues (egr valve, engine mounts, turbo chargers, compressors) before there is further loss of vehicles/life. At a minimum, extend the warranty to cover beyond 60,000 miles when so many known issues exist. It will be cheaper than the class action lawsuit underway.
The 2. 3 liter 4 cylinder l3t engine that is in my wife's 2007 Mazda Cx-7 has a bad variable valve timing actuator which was verified today by dual Mazda of jacksonville florida. A warranty extension was issued by Mazda around the 14th of January 2012 following the initial TSB (technical service bulletin) date 23 February 2011. My concern is not that Mazda has acknowledged an internal engine part as being faulty, but that the part stated in the warranty extension could possibly make the timing chain go bad. Mazda did not cover how, when, what rpm range, engine load, or most importantly what speed this might happen if the actuator is not replaced. The last thing anyone wants is their engine timing going out. . . At any speed or at anytime while moving in a motor vehicle, catastrophic engine failure will surely follow. I feel that these faulty variable valve timing actuators are an integral part of making this engine run safely and ultimately the car overall and should be looked into before its an actual incident.
One morning the check engine light turn on, the computer code came back as egr val,I have had this vehicle for over 3yrs this is a pricy part, I have read about this and a lot of people have experience this as soon as they reach the 62k miles this is rediculous. I hope this has nothing to do with a noise that the engin have ever since o bought it which the said it was normal. . . As per the tires I had to replace them as soon as I reached the 1 yr, never will I buy a Mazda again. . . .
The check engine light came on so I took it to the dealership. Turns out the timing chain, gaskets, lock, and bolt, oil pan gasket, and egr valve need to be replaced. The car only has 37,437 miles on it. To have major engine problems is ridiculously unsafe. Mazda has many cases with these same issues and yet has not issued a recall. Even with the warranty covering engine parts/labor it's absurd! they need to be held responsible for selling lemons to the public.
Dealership maintained Cx-7 experienced major failure while driving. Engine died and major oil leak was noticed. Car had to be towed to the dealership. The dealership first indicated that there was some type of failure regarding the #3 cylinder. Dealership said that the probable cause of failure was due to turbo overheating. Later the dealership stated that the #4 piston failed and caused catastrophic damage to the engine. The cause of failure was never determined. The engine, turbocharger, thermostat, egr valve, intake manifold, starter and O2 sensor were replaced. Total cost of repairs (labor, parts, and misc charges) prior to tax was $10,557. 49. Prior to engine failure we informed the dealership that the check engine light was constantly on but stated that it was due to the gas cap not being properly put on. They never scanned the computer despite the car being under warranty. Additionally a ticking noise has been previously brought to the dealership's attention but was told that the engine noise was normal for this particular engine.
Tl- the contact owns a 2008 Mazda Cx-7. The contact stated that the check engine warning lamp was illuminated. The vehicle was taken to a local mechanic who diagnosed that the egr valve was defective and needed to be replaced. The manufacturer was made aware of the failure who did not offer any assistance since the vehicle was no longer under warranty. The vehicle was repaired. The failure mileage was 45,900 and the current mileage was 46,000. Kmj.
My 2007 Cx-7 experienced a catastrophic failure of the a/c compressor resulting in smoke in the cabin. After parking to allow the car to clear it would not re-start and I had to be towed to the local dealer. This occurred late on a Friday afternoon and so they were closed until the following Monday. The potential failure was known and Mazda had issued a letter extending the warranty on this item but not a full recall. The dealer installed new parts but since then it has been back several times because of lack of performance. I have received explanations of too much/too little refrigerant block dlines with particles from the original failure. After the third return visit in June 2012 the problem appeared to be fixed and the system worked until last week so I scheduled another visit. The problem has now being diagnosed as a failed hose fitting and they are expecting me to pay for the part but not the labor. My view is that parts like this should not fail at the current 41,000 miles and that some of this is related to the previous fixes. Also CO-incidentally the check engine light came on as I was scheduling a dealer appointment. This has gone on and off several times over the last month. It has been diagnosed as a failed egr valve and will cost $700 to replace. Again this is not something that I would expect to need at such a low mileage and on a car that has all routine serving and has been babied. This prompted me to go on-line to research and there appears to be lots of similar issues with this model of Mazda and yet they are not performing recalls. I am hoping that my experience will add to the case to pressurize Mazda to be more customer orientated with their Cx-7 owners and/or to support a class action suit to help recompense owners against these non routine mechanical failure issues.
My check engine light has come on in my 2008 Mazda cx-9. Took the vehicle to the dealer and they advised the egr valve has to be replaced due to it being warn out. Mazda states this part does not fall under emissions warranty. After doing some research, this appears to be a common problem with Mazda's and I don't feel I should be paying $1200. 00 to fix a vehicle that is only two years old. Mazda has been no help just trying extort money from consumers.
2007 Mazda Cx-7 grand touring. (family car)! 43,636 miles(out of warranty) first off, my wife and I have a had our car serviced and oil changed every 3000 miles! and we have taken the car in numerous times for the a/c not working in over 90 degrees temperatures. And have been told by 2 dealerships that the Cx-7's a/c doesn't work well over 90 degrees. Living in southern California its over 90 degrees for almost 6 months of the year. A couple days ago, my wife, young daughters and I were driving our car to a destination only 3 miles from home. (the car had been sitting all day, in the garage. ) we had the a/c on half way(85 degrees out). About ready to get off the freeway and only going 60 mph. The air blowing out of the a/c started blowing hot, easily over 100 degrees. The a/c started whining, though it was a belt slipping. Immediately turned off the a/c and fan motor. And then began to smell burning plastic. Drove 1/4 mile to destination and right before parking it, a plume of white smoke started coming out of the engine compartment and a/c vents. I opened the hood to put out the fire, I thought would be there. But the car just kept smoking with no visible flame. Smoked-no it "plumed", for about 15 minutes. I called aaa , and had the car towed to a local Mazda dealership. When I told the service what happened, he smiled and shook his head and told me that the a/c compressor blew. Without even looking! he said, he couldn't understand why Mazda has not recalled this problem yet. And that he has had a lot of upset Cx-7 owners spending over $2500 because they didn't turn off the a/c when it stopped working. Resulting in timing chains, blown engines and other expensive parts going out due to the stress caused on the a/c belt when the compressor blows. And if I hadn't been reading blog after blog online since 2007 when we got the car, about the a/c compressor problem, I would of been paying $2500 or more too! one day of service and $1025 later. The car seems to be fine.
My wife and I purchased a 2007 Mazda Cx-7 a few years ago, and over the last three months it has been in the shop with multiple problems. From an oil leak, to a bad compressor, then the timing chain gone bad and now another problem with the egr. The car has a little over 38k miles and to me it seems very odd for a car being this young in miles, to have major problems such as these. After going back and forth with the Mazda corporate office, they first agreed to pay for the parts for my latest problems since I'm now out of warranty. I was fine with that until I found out the labor was over $500 to fix this problem. When I call the corporate office to try to discuss splitting the labor costs, their supervisor contacted me back with an attitude like I did something wrong and decided they were now not going to help at all. That is just poor customer service behind a vehicle that was not ready to be put on our us roadways. In my opinion, this car should be recalled. . Read more...
|Problem Category||Number of Problems|
|Engine And Engine Cooling problems||
|Engine Cooling System problems||
|Engine Belts And Pulleys problems||
|Engine Exhaust System problems||
|Gas Recirculation Valve (egr Valve) problems||
|Engine Rattling And Whining Sounds problems||
|Engine Failure problems||
|Car Stall problems||
|Engine Clicking And Tapping Noises problems||