Two problems related to loud engine noise have been reported for the 2008 Mazda CX-7. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Mazda CX-7 based on all problems reported for the 2008 CX-7.
I was driving down the highway and suddenly I hear a loud noise sounded like I was in a big rig truck then all of a sudden it started to overheat b4 I could pull off of highway it cut off right in the highway I had my grandson with me and thank goodness there was not a lot of traffic or we probably would've been dead.
Earlier that day I got my oil changed on my lunch break at work. I drive back to work my car sits in the parking lot and I leave a few hours later well my car it was making a really loud noise it sounded like a helicopter I live about 30 miles away so I figured if I drive slow enough I might be able to make it home. As I was going up a hill the car start to decelerate so im like ok maybe I need to go slower no I get up over the hill and am going down the hill and the car just dies there on the side of the road. I get it towed to Mazda the next day because I find out I have a powertrain warrenty until 60,000 miles I only have 54,000 miles on it so they tow it under my roadside assistance. Now my car has been there for a month and come to find out my timing chain went on it causing a domino effect on it and making the engine go. Now the dealership wants 8 grand to fix my car because Mazda denied my claim due to "engine sludge" which at this low of miles and me performing regular oil changes they considered "lack of maintance" because I couldnt prove it.