2009 Nissan Pathfinder Engine Problems

Your transmission fluid is leaking into your coolant system, causing your engine to overheat. Your temperature gauge isn't warning you about the overheating, so you might not notice the problem until you see a thick, chalky buildup inside your radiator. This needs immediate attention to prevent engine damage, as mixing fluids can cause your engine to overheat and fail.

Your Pathfinder stalls unexpectedly while driving at low to moderate speeds or when parked. A mechanic diagnosed this as a faulty camshaft position sensor. Replacing this sensor should resolve the stalling issue.

Your transmission is slipping, meaning it's not engaging smoothly or holding gears properly. Additionally, your radiator is failing—you're losing coolant and having to add antifreeze almost daily, and your engine temperature runs higher than normal. You'll likely need radiator replacement and transmission service or repair.

Your engine's timing chain and tensioner system is making noise, which indicates wear or slack in the system. Nissan has issued a technical service bulletin to dealers to address this, but owners report it doesn't fully resolve the problem. A complete repair would likely involve replacing the timing chain, tensioner, and related components.

TL* THE CONTACT OWNS A 2009 NISSAN PATHFINDER. WHILE DRIVING AT APPROXIMATELY 40 MPH, THERE WAS AN ABNORMAL NOISE COMING FROM THE FRONT OF THE VEHICLE AND THE SERVICE ENGINE WARNING INDICATOR ILLUMINATED CONTINUOUSLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THERE WAS CROSS CONTAMINATION IN THE RADIATOR. AS A RESULT, THE TRANSMISSION AND THE RADIATOR NEEDED TO BE REPLACED. THE VEHICLE WAS LATER TAKEN TO A DEALER WHERE IT WAS CONFIRMED THAT THE RADIATOR FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 101,000. UPDATED 10/05/16*LJ *CN

WAS ON MY WAY HOME AND TRUCK LIGHTS CAME ON TRANSMISSION STARTED JUMPING AND ALL LIGHTS CAME ON ... PARKED CAR WOULD NOT CRANK THE NEXT DAY ,,, CALLED AND HAD TOWED. WAS TOLD BY NISSAN THAT TRANSMISSION AND RADIATOR WAS NOT ANY GOOD AND IT WOULD COST ME $4800 TO FIX ... NO ONE OFFERED TO HELP .. I WAS TOLD THAT I COULD CONTACT NISSAN SO I DID , WAS TOLD BY NISSAN THAT IT WAS TO BAD THAT I WAS PAST THE EXTENTION OF THE WARENTY OF THE TRUCK. AND THEY COULD NOT HELP AT ALL.... AND HUNG UP. IT COST ME $3800 TO REPAIR MY CAR.. I FEEL RIPPED OFF, AND WILL MOST LIKLEY NEVER BUY ANOTHER NISSAN AGAIN EVEN THOUGH I HAVE OWNED 3. *TR

TL*THE CONTACT OWNS A 2009 NISSAN PATHFINDER. THE CONTACT STATED THAT HE RECEIVED A LETTER FROM THE MANUFACTURER STATING THAT THERE MAY BE A FAILURE IN THE RADIATOR AND THEY WOULD NOT REPLACE ANY PARTS UNTIL THE FAILURE OCCURRED WITHIN THE VEHICLE. THE VEHICLE WAS INSPECTED BY A DEALER WHO INFORMED HIM THAT THEY WERE UNABLE TO DIAGNOSE A PROBLEM. THERE WERE NO FAILURES AT THIS TIME. THE CURRENT MILEAGE WAS APPROXIMATELY 14,000.