Problems · by component

2003 Infiniti G-Class engine and engine cooling problems

67 owner complaints to NHTSA about the 2003 Infiniti G-Class cite engine and engine cooling, 13% of all 535 complaints for this model year. NHTSA also lists 1 recall on this component.

Complaints
67
13% of all complaints
Crashes
1
Reported by owners
Fires
1
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the engine and engine cooling

Verbatim from NHTSA complaints, newest first
“AS I WAS ACCELERATING TO ACCESS HIGHWAY, I WAS NOT ABLE TO ACCELERATE MY VEHICLE. IT WAS AS IF I WAS RUNNING OUT OF GAS. I KEPT PRESSING THE GAS PEDAL AND IT SLOWLY STARTED TO ACCELERATE AND SEEMED FINE. A FEW MINUTES LATER WHEN I WAS SITTING AT A RED LIGHT, THE CAR DIED. I PUT IT IN PARK AND RESTARTED AND IT WAS FINE. A FEW DAYS LATER THE SAME THING HAPPENED AS I WAS IN THE CARPOOL LINE AT MY DAUGHTER'S SCHOOL. CAR WAS RUNNING, WHILE I WAITED AND IT SUDDENLY SHUT DOWN. WHEN I RESTARTED, THE CHECK ENGINE LIGHT WAS ILLUMINATED AND REMAINED ON. I CHECKED MY MANUAL AND THOUGHT IT COULD BE THE GAS CAP WASN'T ON TIGHT ENOUGH OR BAD GAS. FILLED UP MY TANK AND A FEW HOURS LATER CHECK ENGINE LIGHT WENT OUT. TODAY THE CAR DIED AS I WAS PULLING INTO MY DRIVEWAY, HOWEVER IMMEDIATELY RESTARTED. RESEARCHED RECALL INFORMATION AND CONTACTED INFINITI AND WAS TOLD MY VEHICLE WAS NOT PART OF NHTSA CAMPAIGN NUMBER 03V455000. *TR”
Owner complaint to NHTSAFiled Aug 30, 2014Steering, Engine and engine cooling, Vehicle speed control, EngineODI 10629621
“I HAVE A 2003 INFINITI G35 AND THIS PAST WEEK WHILE DRIVING ON THE FREEWAY MY CAR STALLED AND LOST ALL POWER AND COMPLETELY SHUT OFF WHILE DRIVING, WHICH ALMOST LED TO A VERY BAD DEADLY CAR ACCIDENT ON THE FREEWAY, I WAS ABLE TO THEN MOVE TO THE SIDE OF FREEWAY, I THEN WAS TOWED TO A INFINITI SHOP AND WAS TOLD THE PROBLEM WAS THE (CRANK/CAM POSITION SENSOR WELD) AREA LOCATED NEAR THE ENGINE AND THAT THIS ISSUE WAS A RECALL WITH THIS CAR, I CALLED AND SPOKE WITH A REPRESENTATIVE AT INFINITI CORPORATION AND THEY DID NOT WANT TO HELP ME, AND I AM LOOKING TO SEEK FURTHER ASSISTANCE. AS LISTED ON THE FOLLOWING WEBSITE, WHEN SEARCHING THE SPECIFIC MODEL MAKE AND YEAR OF MY VEHICLE IT IS LISTED AS A EXTREMELY DANGEROUS RECALL! (HTTP://WWW.SAFERCAR.GOV/) RECALL SUBJECT : NISSAN/CRANK/CAM POSITION SENSOR WELD NHTSA CAMPAIGN NUMBER: 03V455000 COMPONENT(S): ENGINE AND ENGINE COOLING ALL PRODUCTS ASSOCIATED WITH THIS RECALL EXPAND DETAILS CLOSE 14 ASSOCIATED DOCUMENTS EXPAND MANUFACTURER: NISSAN NORTH AMERICA, INC. SUMMARY: ON CERTAIN PASSENGER VEHICLES, THE CIRCUIT BOARD FOR THE CRANK POSITION SENSOR OR CAM POSITION SENSOR MAY HAVE AN IMPROPER SOLDER JOINT DUE TO SOLDER…”
Owner complaint to NHTSAFiled Aug 12, 2014Engine and engine cooling, EngineODI 10621733
“TL* THE CONTACT OWNS A 2003 INFINITI G35. WHILE DRIVING APPROXIMATELY 70 MPH, THE ENGINE STALLED AND THE SERVICE ENGINE SOON, VDC OFF, AND THE FLIP WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS ABLE TO RESTART AFTER NUMEROUS ATTEMPTS. THE VEHICLE WAS TOWED TO A DEALER WHO STATED THAT THE CRANK SENSOR AND CAM SHAFT SENSOR NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER STATED THAT THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 03V455000 (ENGINE AND ENGINE COOLING). THE APPROXIMATE FAILURE MILEAGE WAS 165,380.”
Owner complaint to NHTSAFiled Aug 12, 2014Engine and engine coolingODI 10621806
“TL* THE CONTACT OWNS A 2003 INFINITI G35. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 15 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS RESTARTED AND RESUMED NORMALLY. THERE WAS A RECALL RELATED TO THE FAILURE UNDER NHTSA CAMPAIGN ID NUMBER: 03V455000 (ENGINE AND ENGINE COOLING) HOWEVER, THE VIN WAS NOT INCLUDED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 55,000. UPDATED 8/27/14*CN UPDATED 08/29/2014 *JS”
Owner complaint to NHTSAFiled Jul 9, 2014Engine and engine coolingODI 10609305
“TL* THE CONTACT OWNS A 2003 INFINITI G35. THE CONTACT STATED THAT THE VEHICLE WAS ABLE TO START AND ACCELERATE, BUT STALLED INTERMITTENTLY ON MULTIPLE OCCASIONS. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT THE CAM POSITION SENSOR NEEDED TO BE REPLACED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN ID NUMBER: 03V455000 (ENGINE AND ENGINE COOLING). THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 83,500.”
Owner complaint to NHTSAFiled Jun 9, 2014Engine and engine cooling, EngineODI 10597023
“TL* THE CONTACT OWNS A 2003 INFINITI G35. THE CONTACT STATED THAT WHILE DRIVING 55 MPH, THE VEHICLE STALLED WITH THE ILLUMINATION OF THE SERVICE ENGINE WARNING LIGHT. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC FOR DIAGNOSIS WHERE IT WAS STATED THAT THE CAM SHAFT SENSOR NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 120,000. UPDATED 09/18/13*LJ”
Owner complaint to NHTSAFiled Aug 6, 2013Engine and engine coolingODI 10533912

Showing 6 of 67 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026NHTSA vehicle page
02 —Related recalls

1 recall on this component

Engine and engine cooling

Free remedy

ON CERTAIN PASSENGER VEHICLES, THE CIRCUIT BOARD FOR THE CRANK POSITION SENSOR OR CAM POSITION SENSOR MAY HAVE AN IMPROPER SOLDER JOINT DUE TO SOLDER DEFORMATION CAUSED BY HEAT STRESS ACCELERATED BY THE EXISTENCE OF FLUX RESIDUE DURING THE SOLDERING PROCESS.

Engine and engine coolingReported Nov 17, 2003NHTSA 03V455000
Data from NHTSA Recalls API · synced Oct 30, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.