2007 Mazda Mazdaspeed3 engine problems

Filed Aug 17, 2014 · Engine, Transmission · 74,200 miles · MI

On saturday 19 july 2014, my wife and I were driving north on highway 131, 18 miles south of grand rapids, mi when without notice the engine's number 1 cylinder blow a hole through the casting and damaging the inner axle shaft carrier bearing. When the engine blew, it caused the car to shake violently causing me, the driver, to lose control of the vehicle. I was able to regain control of the vehicle before the car swerved into an adjacent lane. Prior to the incident the vehicle was in good running condition and had just passed the virginia state inspection a few months prior. All of the regular vehicle maintenance was completed according to the vehicles maintenance schedule. Each servicing that was completed was documented in my own personal records for reference. This being said, this vehicle caused a major safety incident without notice, which under certain circumstances could have caused serious damage or even a fatality. There are several cases of these mazda 2.3 liter turbo mrz engines blowing under normal operating conditions. There is a major design or manufacturing defect which mazda needs to address.

Filed Aug 12, 2014 · Engine, Transmission · 74,200 miles · MI

On saturday 19 july 2014, my wife and I were driving north on highway 131, 18 miles south of grand rapids, mi when without notice the engine's number 1 cylinder blow a hole through the casting and damaging the inner axle shaft carrier bearing. When the engine blew, it caused the car to shake violently causing me, the driver, to lose control of the vehicle. I was able to regain control of the vehicle before the car swerved into an adjacent lane. Prior to the incident the vehicle was in good running condition and had just passed the virginia state inspection a few months prior. All of the regular vehicle maintenance was completed according to the vehicles maintenance schedule. Each servicing that was completed was documented in my own personal records for reference. This being said, this vehicle caused a major safety incident without notice, which under certain circumstances could have caused serious damage or even a fatality. There are several cases of these mazda 2.3 liter turbo mrz engines blowing under normal operating conditions. There is a major design or manufacturing defect which mazda needs to address.

Filed Jul 29, 2013 · Engine · 96,000 miles · CA

Tl* the contact owns a 2007 mazda mazda speed3. The contact stated that while traveling 65 MPH, the engine suddenly failed. The vehicle was taken to a private mechanic where it was found that oil pressure module had failed. The vehicle was not repaired. The manufacturer was contacted about the failure. The failure mileage was 96,000.

Filed Mar 9, 2009 · Engine, Transmission · 33,800 miles · GA

I have an 2007 mazda mazdaspeed3 bought in may 2007. I had the motor mount bolt replaced during an associated recall in august 2007. A few months later it failed (july 2008). The bolt had backed out, and sheared through the last few threads. I heard this loud bang, followed by clunk-clunk noises and immediately pulled over into a gas station. I was fortunate to be on the right lane at 30 MPH in 3rd gear. I had it towed to jim ellis mazda of marietta (ga). They told me that the engineers from mazda had a look at it and the whole mount bracket and the bolt was replaced under warranty. But over the past two weeks I've been hearing a slight clunking noise especially during slow turns, so I took it back to the dealer again on last monday (03/02/09) to have them look at it. They found that the steering rack flow control valve was popping at times and replaced it under warranty. I had also asked them to have a look at my mounts, just to be sure. I got my car back on thursday and was told that my mounts were fine. But on friday (03/06/09) I still had those clunking sounds on slow turns and while pulling out of parking lots/backing up. I also noticed some odd vibrations on the clutch pedal while giving gas and during idle. The last time had these vibrations were just before the motor mount failed on me. So I decided to have a look into my mounts. I also noticed that my clock and trip meters were not reset. If the dealer had inspected my mounts they would've been reset when the battery is being removed. That raised my suspicions. I removed the battery and tried turning the mount bolt. It was I could turn it with just one hand. I immediately called the dealer and asked them what to do. The asked to bring the car over after tightening it, or get it towed if I couldn't. I tightened the bolt and it took me about 6 turns to fully tighten it!!! The bolt was almost out and I caught it before something serious had occurred. The dealer has re tightened the bolt now.

Filed Feb 12, 2009 · Engine · 26,478 miles · NY

Had motor/transmission mount recall done on my 2007 mazdaspeed3 done as soon it released in 2007. Feb 2009 with 26000 miles on the car the motor/transmission mount bracket tore apart while driving. Axles, and alot of other parts, damaged. Needles to say thank god I was only doing 5mph when incident occurred. Car was repaired at mazda dealer, and before I picked up vehicle after supposedly being fixed, motor/transmission mount failed again while the mazda tech was driving vehicle. Mazda has a very serious problem with these cars that they do not seem to want to address properly. They really need to fix this problem now before someone gets injured seriously. Not an acceptable problem on any car.

Filed Dec 5, 2007 · Engine · 11,700 miles · TX

Tl*the contact owns a 2007 mazda speed 3. While driving 40 MPH, the motor mount broke when he shifted from first to second gear. As a result, the dry shaft pulled from the transmission and tore the cb axle boot. The contact installed an intake manifold prior to the failure. There is a safety recall for the engine and engine cooling (the federal safety agency campaign id #07v295000) however, the dealer refused to repair due to the installation of the intake manifold. The current and failure mileages were 11,700.

Filed May 28, 2007 · Engine, Transmission · 16,000 miles · MN

Motor mount failure. My transmission/motor mount failed causing the engine to fall in the engine bay. This has happened to several others as posted on http://www.mazda3forums.com/index.php?topic=68975.0.

Filed May 18, 2007 · Engine · NY

2007 mazda aspeed 3 is prone to motor mount failure, I am taking the vehicle to the dealership to have them address loose motor mount, which according to recent data on the web , is prone to potentially catastrophic failure if the mount fails at highway speeds.

Filed May 15, 2007 · Engine, Transmission · 2,000 miles · TX

Shifting from 1st to 2nd gear was rough sometimes. I checked the torque on bolt of driver's side engine mount and it was loose. It turned under 30 feet-lb. Bolt was supposed to be 70-80 feet-lb from the factory. After bolt was tightened to spec shifting became a lot smoother. I was convinced that if bolt was not tightened failure of driver' s-side engine mount bolt would have eventually resulted in a couple thousand more miles. Vehicle only had 3000 miles on it -engine would have dropped over left side driveshaft, causing loss of control of vehicle. Refer to investigation pe07015 .

Filed May 14, 2007 · Engine · 4,224 miles · TX

Have a 2007 mazda speed 3 with 4224 miles 4 months of ownership. Reported a strange popping sound to the dealer on saturday and was told that it was not normal , and to drop off the car at the earliest convenience. While driving to a friend's house I turned left on a street and accelerated once into 2nd gear. I accellerated some more and heard a loud bang, and then several sequential pops and noises. I popped the hood to see that the driver's side of the motor had fallen down. So far the dealer noted that it was a motor mount/bolt failure , and the estimate was still to come on how much to fix the car.