Other Fuel System Problems of Mazda CX-7

My daughter was driving a 4 hour trip in florida on I-95 halfway into the trip she pulled into a parking lot to stop for lunch and before she could even turn off the vehicle, a fire erupted from under the hood. The car completely burned. There is a police report at jupiter FL police department # 22-184325.

See all problems of the 2010 Mazda CX-7 🔎.

The vehicle would not start, would stall out and turn off while driving. The driver's side window will not move up or down. The car would start with jumper cables, idle for a few minutes, then go completely dead, no lights, no buzz, no nothing as soon as it was put into reverse. The car has a new battery, new coils, new spark plugs and continues to misfire. Mazda has been unresponsive to messages due to open recalls.

See all problems of the 2012 Mazda CX-7 🔎.

On-going issues with gas pump shutting off at pump. Took car to get it check. Back and forth with dealer to fine issue for over several months period. Engine warning light came on twice. Customer request dealer to check fuel systems. Gas leak discovered, along with clogged fuel vapor lines. Spider webs near fuel lines. Customer suspect fuel system defect. Dealer suggest fuel system replacement. Since out of warranty, customer reach out to manufacturer.

See all problems of the 2011 Mazda CX-7 🔎.

Faulty fuel rail causing the vehicle to not accellerate.

See all problems of the 2007 Mazda CX-7 🔎.

The timing chain tensioners & bearings that keep the chain tight wear out way before their life should be up. I took the car to the Mazda dealership to have it looked at & the shop technicians said they get this problem with these cars all the time. All they had to do was listen when the car was started & they knew exactly what the problem was. Even before going in I called & spoke to a service tech. As soon as I said "my car sounds like a diesel vehicle he said over the phone that the problem was with the timing chain tensioners and such. He also said many of the same cars come in with the same problem & he couldn't understand why there wasn't a recall on this. That is why I am writing to you. The sound occurs when the engine is running regardless of if we're in motion or not. If you put Mazda Cx-7 sounds like a diesel in a browser search you will get many results regarding the timing chain issue.

I was driving at a normal rate of speed on a fairly busy street when the car just suddenly decelerated, causing the car behind me to swerve to narrowly avoid me. Thankfully he also avoided hitting anyone else. My car continued to move forward, but with no ability to accelerate. I managed to get clear of traffic and was able to get the car to a repair place nearby. I was told that the entire throttle body was bad, and that it would have to be replaced. The car is a 2011, less than 60k miles on it with regular oil changes and has never had any issues until this. The complete and immediate deceleration seems quite dangerous in my opinion. And having done some reading online, this seems to be a fairly common problem that Mazda is aware of yet has done nothing to rectify.

My Mazda cx7 - 2008 has only 70,000 miles and the engine light went on and after bringing it to a mechanic and checking the codes with a computer, it came up that the egr valve needs to be replaced. All the mechanics that I talked with were really surprise and asked me if the Mazda cx7 - 2008 has a recall on the egv valve because it is not normal that with that little miles the egr valve need to be replaced. I have checked on the internet and I'm seeing many other owners that are having the same issue. I think there is a factory defect with the egr valve for this model.

See all problems of the 2008 Mazda CX-7 🔎.

While driving down the interstate, vehicle lost much of it's acceleration, and began making a loud whining noise. Pulled off the highway and investigated the noise. It was a loud whining that only occurred in neutral and park over 2500 rpm and with any acceleration while in gear. Also noted yellow foamy oil on the dipstick which was 4. 5 quarts low being very close to time to get a change. Towed to the shop to discover that the vehicle is burning oil and the turbo had gone bad. Mechanic suspects that the turbo going bad is what was most likely burning oil and retaining water in the crankcase.

See all problems of the 2009 Mazda CX-7 🔎.

On Sunday, January 4, 2015, I was driving my 2008 Mazda Cx-7 and I stopped at a stoplight. When I tried to take off when the light turned green, my car hesitated and when I pressed on the gas peddle a little more, it still hesitated then finally took off. All of a sudden, I heard an extremely loud popping noise, and then thick, heavy white smoke started to come out of the tailpipe. The white smoke then started flowing out from under the hood, and it started to come into the car through the air vents. When I tried to pull over and put the car in park, it wouldn't shift into gear, so I pushed the parking break, and it finally stopped. I got out of the car and when I went to grab my purse, I saw fire coming through the bottom air vents ( the ones that blow air on your feet) so I grabbed my purse as quickly as I could, and ran away from the car. Then, I saw part of the engine fall out of the bottom of the car, on fire, and burn into the street. About 5 seconds later, the whole entire car burst into flames. All of the doors were closed, but the intensity of the fire blew both of the passenger side doors open, and blew out all of the windows (including the sunroof, which was closed at the time). When the firefighters finally put the fire out, the car was still smoldering and everything inside was melted. The steering wheel, the seats, the door handles, the mirrors, everything. The fire was so strong that it blew the hood back onto the windshield. All that is left of the car, is just the metal frame, and the engine. The car has a 4 cylinder engine with a turbo feature on it. I believe that that is what caused the fire and made the loud popping sound initially.

I purchased a Mazda Cx-7 2009 vehicle used in August 2014. Within 2 months of purchase noticed a fuel oder coming through the air vents. Problem did not go away. Told buy dealer is would cost $900 to fix and that the vehicle was leaking gas. They told me it was a safety issue and the vehicle should not be driven. I feel I should not pay for this defect.

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.

Egr valve failure on a 2008 Mazda Cx-7 with 47,500 miles. I had never heard of a egr valve before my check engine light came on and I took it to the local auto parts store to have them tell me the error code. Took it to the dealership and they told me that the warranty for the part was 60months/60,000 miles. While I was way under on the miles, I was 5 months over on the time. Since this was my 3rd trip into the dealership over the past 5 months dealing with problems/maintenance with my Cx-7, I asked why this particular part failed. I was told that it was due to the negative effects of ethanol. After some quick research, it is clear that 2007-2008 Mazda Cx-7 has serious problems with the egr valve. It will cost me $650 to fix. Mazda should have been forced to recall this part since it looks like it was defective from the start. Was told that a new replacement part for the egr valve would be put into the vehicle which will not break due to presence of ethanol in gas.

Timing chain stretched and variable valve timing, and throttle went out. This is the 2nd time that the timing chain has been stretched out on this vehicle. The first incident was at around 64000 miles. The 2nd incident was at 124966 miles. Mazda extended the warranty on the timing to 70,000 miles on January 12. However, I did not get that letter and it happened after I had already gotten the problem repaired under a separate warranty.

From the day I purchased my cx7 the brakes were not working properly and the air conditioner made loud banging noises and does not get cold. When I was at my wits end and took cx7 to dealer at 9,600 miles Mazda said I had a bad master cylinder and replaced it. When the master cylinder was replaced my check engine light came on. Mazda ordered another master cylinder and a brake booster. When these were replaced my check engine light came on again. Mazda said my engine was running on a lean mixture and corrected this. The check engine light is off cx7 runs very roughly. Only use premium gasoline and synthetic motor oil. Mazda field representative advised me and dealer that loud noise from air conditioner is normal and typical of all similar Mazda vehicles. I have this documentation regarding a/c in writing from Mazda. Air conditioner barley gets car cool, is ineffective when temperature is ninety degrees. My brakes are slightly better, but still low and soft. Cx7 runs extremely rough and is getting very poor gas mileage.

While traveling at 45mph, experienced sudden loss of power. Cel came on and trouble p3001 was the code display on handheld reader. Car is out of warranty, dealer states several components within engine have failed and Mazda has no responsibility over failures since I do not have an extended warranty. I have researched the problem production years 2007 and 2008 are plagued with premature engine failure.

Apparently the design of the turbo and the engine creates hot spots in the engine, especially in the turbo. These hot spot create sludge build up which eventually effects the performance and reliability of the engine. Research on the internet shows this to be a problem for a considerable amount of owners of this vehicle. Mazda has refused to correct these problems under their warranty. Also lacking by Mazda, since it is apparently a major cause of large build-ups of sludge, is the necessity to idle the engine for three minutes prior to turning off. This was never explained to us when the vehicle was purchased.

Air bag light comes on and off randomly with or without passenger in seat. Have had so many issues with this 2007 Cx-7 from 2 different complete a/c system rebuilds in first 2 years, belt tensioner pulley, egr valve codes (had to get egr valve cleaned), coolant temp codes (replaced thermostat & temp sensor) and now air bag random light. I am on a Mazda forum and honestly there should be more recalls on this vehicle due to the volume of complaints in several categories. . . Mazda responses to just about everything is to replace something for a minimum $500 up to thousands. . . I am tired of having to deal with Mazda and will never buy another. . . Traded in a 2001 chevy tahoe for Cx-7 with 250,000 mi and only had normal maintenance. The Cx-7 was a bad investment for me. . .

Check engine light came on shortly after I purchased my brand new Mazda cx7. Dealership just simply resetted it without further inspection and now after warranty light is back on. Had already replaced gas cap and l reset was done again but it is back on. I read a lot of complaints online about the check egine light. I seems like a common problem with Mazda cars but Mazda does not seem to concerned about it. My car cant pass inspection because code p0442-evaporative emission system leak detected (small leak) keeps coming up. I want Mazda to correct this problem because it appears to be a common problem among Mazda owners. Emailed Mazda and no answer so I called 800 number and was told that there are no recalls on this problem. Please help. Not sure of the date it initially happened. But check engine light came on again last summer 2018 thanks.

My 2007 Cx-7 started making a loud banging noise when I started it (may 7,2012). I brought it to the dealership to have it checked out and they said it was my timing chain & actuator (vvt) and it would take $1350 to repair. I paid the money and it was fixed in a couple of days. On June 7th,2012 I started to realize that my ac was not working, but had decided to wait a little bit to have it fixed because I was still hurting financially from the last fix a month ago. Than on June 9th, 2012, I went to start my vehicle and it sounded like it was about to explode. I live in the country and the closest dealership is at least 50 miles away. So I brought it to my local repair shop and they told me my turbo is blown. The Mazda dealership wants $80 to diagnose it and $5000 to fix it (that doesn't include my towing fees and the cost of fixing the ac). I've read all of the complaints online and everyone is saying sludge build up and Mazda wants the receipts for all of their oil changes. I have all my receipts for the synthetic oil changes that I have had done to the vehicle on time (not to mention only filling the car with premium gas). Unfortunately, my car is up to 100,000 miles and they only extended the warranty to what. . . 70k? so basically I have a car that I paid $16k for and is completely useless to me only after 100k miles. From what I've researched vvt's are not supposed to go out until what 250k-300k miles? and it seems a bit ridiculous for the turbo to go out after 100k miles. . . .