2003 Infiniti Q45 problems

“THE CIRCUIT BOARD FOR CRANK POSITION SENSOR AND CAM POSITION SENSOR HAVE IMPROPER SOLDER JOINTS. THIS HAS CAUSED THE SERVICE ENGINE LIGHT TO COME ON, THE ENGINE MAY NOT START, POWER REDUCES, ENGINE STALLS AT A TRAFFIC LIGHT OR WHILE IN MOTION, ON A CITY STREET OR HIGHWAY OR WHILE MAKING A TURN. THIS IS ALSO A COMMON PROBLEM WITH THE 2002 INFINITI M45, Q45; 2003 INFINITI I35, M45; 2003 NISSAN ALTIMA, MAXIMA, MURANO, SENTRA. THERE ARE 11 CONSUMER COMPLAINTS, 3 INVESTIGATIONS AND 33 SERVICE BULLETINS REGARDING THIS ISSUE WITH THE 2003 Q45. INFINITI/NISSAN RECALL # 03V455000”

“TL* THE CONTACT OWNS A 2003 INFINITI Q45. WHILE DRIVING VARIOUS SPEEDS, THE ENGINE STALLED WITHOUT WARNING AND ALL POWER WAS LOST. AFTER SEVERAL ATTEMPTS, THE VEHICLE WAS ABLE TO RESTART. THE FAILURE RECURRED RANDOMLY. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE FAILURE COULD NOT BE DETERMINED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 61,000. UPDATED 11/29/16*LJ THE CONSUMER HAS SINCE TRADED THE VEHICLE. UPDATED 12/06/16.*JB”

“TL* THE CONTACT OWNS A 2003 INFINITI Q45. THE CONTACT STATED THAT WHILE DRIVING AT 30 MPH, A NOISE EMITTED FROM THE FRONT OF THE VEHICLE. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT THE FAN BELT AND POWER STEERING BELT NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. IN ADDITION, THREE MONTHS LATER, THE VEHICLE FAILED TO START. THE VEHICLE WAS TAKEN BACK TO THE DEALER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 92,000. THE VIN WAS UNAVAILABLE.”

“BOUGHT 2003 Q 45 IN SPRING 2007, STILL UNDER WARRANTY. JUNE 2009 AT 79,000 MILES THE ENGINE WAS REPLACED (UNDER WARRANTY). 6/30/09, 80,081 MILES CAR PROBLEM WITH NO ACCELERATION AND SERVICE ENGINE AND CRUISE CONTROL LIGHT COMING ON. PROBLEM DIDN'T REOCCUR UNTIL JUNE 2012 WHEN ENGINE SUDDENLY CUT OFF WHILE DRIVING. WOULD RESTART IN NEUTRAL BUT IN A WEEK OR SO IT DID IT AGAIN ON THE INTERSTATE AT ABOUT 55. FORTUNATELY WAS IN RIGHT LANE AND COULD GET TO EMERGENCY LANE BEFORE SOMEONE RAN INTO ME. CAR RESTARTED. CONTINUED LIKE THIS UNTIL 6/29/12 WHEN REPAIRED, ONLY IT CONTINUED TO STOP AND THE CRUISE CONTROL/TRACTION LIGHTS WOULD COME ON AND CAR WOULD SUDDENLY STOP AND THEN SURGE FORWARD. 8/11/12 SERVICED FOR SAME PROBLEM. 8/14/12 SAME THING, CAR STOPPED THEN SURGED, THEN THE ENGINE CUT OFF AND LOST STEERING/BRAKES. INFINITI SERVICE AGAIN, THIS TIME INSTALLING NEW ELECTRONIC CONTROL MODULE ($ 1600). THE DEALER KEPT THIS CAR FOR SEVERAL DAYS AND A MECHANIC DROVE IT UNTIL IT HAPPENED SEVERAL TIMES. THE MECHANIC OR SOMEONE AT INFINITI DEALER TOLD ME IT WAS A "DEATH TRAP" AND IT IS. A FEW WEEKS LATER GOING AROUND A ROUNDABOUT, THE ENGINE TURNED OFF AND LOST STEERING.…”