2007 Mazda CX-7 engine problems

“ENGINE VVT SOLENOID SEIZED CAUSING COMPLETE ENGINE FAILURE WHILE TRAVELING ON THE HIGHWAY AT 60MPH. THE DEALER IS ASKING $10,730 TO REPLACE THE ENGINE. THE CAR HAS 76,000 MILES.”

“WE BOUGHT THE VEHICLE USED FROM A CAR DEALERSHIP CALLED HEAVY FOOT MOTORS IN SAN ANTONIO TX. THE VERY NEXT DAY, THE VEHICLE STARTED SMOKING FROM THE HOOD, EXHAUST, AND SMOKE CAME THROUGH THE AIR VENTS. MY WIFE GOING ABOUT 5-10MPH WHILE MAKING A TURN IN A RESIDENTIAL NEIGHBORHOOD WHEN THE SMOKING STARTED. WE TOWED THE VEHICLE TO THE DEALERSHIP AND EXPLAINED WHAT HAPPENED. THEIR MECHANIC TOOK THE VEHICLE AND HAD IT FOR THREE WEEKS. I PICKED THE VEHICLE UP AND MADE IT MAYBE 5 MINUTES DOWN THE ROAD, AND THE VEHICLE DID THE SAME THING. SO I HAD THE VEHICLE TOWED BACK TO THE DEALERSHIP AGAIN AND IT IS CURRENTLY THERE AS OF 4/4/2020. MY SAFETY CONCERN IS THAT THERE IS SMOKE COMING OUT OF THE ENGINE, EXHAUST, AS WELL AS THROUGH THE AC VENT AND GOING INTO THE VEHICLE. ALSO, WHEN I WENT TO INSTALL MY CHILDREN'S SEAT BELT WE REALIZED THE BACK SEATS SEAT BELTS DO NOT LOCK TO SECURE A CARSEAT. THAT IS A MAJOR SAFETY CONCERN FOR ME. ALSO, UPON PURCHASE I REALIZE THERE WAS NO DRIVER SIDE DOOR HANDLE. WE AGREED IN PURCHASE CONTRACT THAT THE DEALERSHIP WOULD PUT ONE ON IF I PURCHASED IT. I JUST FOUND IT STRANGE HOW YOU COULD SELL A CAR FROM A DEALERSHIP WITHOUT A DRIVER SIDE…”

“JUNE 2014, I WAS DRIVING VEHICLE OUT OF TOWN ON VACATION AND IT SUDDENLY BEGAN RUNNING ROUGH LIKE THE PISTONS WERE MISFIRING. MILEAGE WAS 69,700. I PULLED INTO A DEALERSHIP (1 MILE AWAY), DROPPED THE KEYS, AND CALLED TO EXPLAIN IN THE MORNING. LATER, THEY SAID THEY DROVE THE CAR AROUND THE LOT AND THE ENGINE LOCKED UP. THEY TOOK NO RESPONSIBILITY FOR MAKING IT WORSE AND CHARGED ME FOR CONFIRMING THE LOSS OF COMPRESSION IN THE PISTONS. WE REPLACED THE ENGINE AT GREAT EXPENSE AND TO A POOR RESULT. I FOUND THIS 2007 MODEL HAD A CHRONIC PROBLEM WITH THE VARIABLE VALVE TIMING (VVT) CAUSING THE TIMING CHAIN TO COME OUT OF ADJUSTMENT AND DESTROY THE ENGINE. INSTEAD OF ISSUING A RECALL AND FIXING IT, MAZDA OFFERED AN EXTENDED WARRANTY TO 6 YEARS-60,000 MILES. THIS IS ABOUT THE AVERAGE POINT OF FAILURE, MEANING HALF THE PEOPLE ARE NOT COVERED. A FEATURE OF THE TURBO CHARGER IS MAKING THE ENGINE RUN HOT, BURNING THE OIL, SO PEOPLE WERE OFTEN DENIED BECAUSE THE OIL "HAD NOT BEEN CHANGED." INTERESTINGLY, MAZDA SAID THE TIMING CHAIN HAD BEEN REPLACED UNDER WARRANTY WITH A PREVIOUS OWNER. THAT DATE AND LOCATION COINCIDED WITH A DATE OF SERVICE SHOWN ON CARFAX FOR TYPICAL…”

“THE MOTOR STARTED RUNNING HOT AND LOSING POWER AND I SHUT IT OFF. THE VEHICLE WAS TOWED TO A GARAGE AND WAS SCANNED ON COMPUTER AND ONLY SHOWED CODE FOR STEERING WHEEL ANGLE. THE MECHANIC PULLED THE COILS AND PLUGS AND CHECKED FOR SPARK AND INSTALLED NEW PLUGS AND ALL COILS OPERATED NORMALLY. COMPRESSION WAS CHECKED AND WAS LOW IN ALL CYLINDERS AROUND 70-80 PSI. PLUGS AND COILS WERE REINSTALLED AND INTERCOOLER PUT BACK ON. CAR IS IN A NO START CONDITION, CAR WAS TAKEN TO CLOSEST MAZDA DEALER AND THEY SAID THEY WOULD NOT FIX PROBLEM SINCE SOMEONE HAD BEEN IN THE MOTOR. THE MECHANIC CALLED THEIR SERVICE DEPARTMENT AND TOLD THEM EXACTLY WHAT HAD BEEN DONE AND THEY SAID THEY WOULD NOT MAKE IT RIGHT. THE CAR HAS 115000 MILES AND HAS NUMEROUS RECALLS FOR THE VVT TIMING CHAIN, TURBO, ENGINE, AND THEY HAVE TSB'S FOR THESE ISSUES AND STILL PLAY DUMB. I WANT MY MOTOR FIXED BY MAZDA AT MAZDA'S EXPENSE SINCE THERE ARE SO MANY COMPLAINTS AND ISSUES WITH THESE VEHICLES AND MAZDA KNOWS ABOUT IT AND STILL DOESN'T WANT TO MAKE THINGS RIGHT.”

“MAZDA IS AWARE THAT THE CX-7 IS A HORRIBLY MADE CAR WHICH CAN BE NOTED WITH THE EXTENSIVE LIST OF RECALLS WHICH THE COMPANY HAS PUT OUT SINCE ITS CREATION. ENGINE FAILURE BEING THE BIGGEST CONCERN TO THE SAFETY OF PEOPLE ON THE ROAD. ENGINE FAILURE AT 70MPH ON A BUSY HIGHWAY CAN RESULT IN DEATH. SOMETHING SHOULD BE DONE TO HAVE MAZDA COMPENSATE ALL OWNERS FOR DEFECTICE VEHICLES. MY ENGINE FAILED AND MAZDA WAS OF NO HELP.”

“TL* THE CONTACT OWNS A 2007 MAZDA CX-7. WHILE DRIVING VARIOUS SPEEDS, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. NORTH FRONTIER AUTO (205 8TH AVE SE, PINE CITY, MN) WAS CALLED AND DIAGNOSED THAT AN UNKNOWN SENSOR FAILED. THE VEHICLE WAS NOT REPAIRED AND THE VEHICLE COULD NOT BE STARTED. THE CONTACT WAS ABLE TO GET THE BATTERY JUMPSTARTED AND DROVE TO NORTH FRONTIER AUTO WHERE THE CODES WERE CLEARED. THE CONTACT STATED THAT THE CHECK ENGINE WARNING INDICATOR ILLUMINATED AGAIN. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE TIMING CHAIN AND SOLENOID WERE DEFECTIVE AND NEEDED TO BE REPLACED. THE SOLENOID FAILURE WAS REPAIRED, BUT THE TIMING CHAIN FAILURE WAS NOT. THE VEHICLE WAS RETURNED TO THE DEALER WHERE THEY STATED THAT THEY REPAIRED THE TIMING CHAIN. AFTER THE VEHICLE WAS REPAIRED, THE CONTACT STATED THAT THE AXLE, BALL JOINT, AND CONTROL ARM WERE DETACHED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE FAILURES WERE CONFIRMED AND THE TIMING CHAIN WAS CONFIRMED TO BE INCORRECTLY INSTALLED BY THE DEALER. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS APPROXIMATELY 148,000.”