There are 6 stored owner reports matching the engine leading-label group for the 2011 Nissan Xterra in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 6 of 6 matching reports.
Open the full vehicle complaint log (all categories)The vehicle was driving just fine, then about a month later the heat gauge started to fluctuate, i replaced the radiator caps, thermostat...it ran good for another month, started to overheat....i made sure water was in radiator and overflow...about a month went by the gauge started to fluctuate again, now there is water in my oil, meaning a cracked head gasket...this is the 2nd vehicle ive purchased that the same thing has hapoened to.
The contact owns a 2011 Nissan Xterra. The contact stated that while the vehicle was parked, an engine oil leak was present. No warning lights were illuminated. The vehicle was taken to a local independent mechanic where it was diagnosed that the oil connector bolt and O-ring seal needed to be replaced. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The vehicle was not replaced. The contact was aware of NHTSA Campaign Number: 11V592000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 140,000.
ENGINE FAILED
EXHAUST MANIFOLD FAILED. DEFECTIVE WELD DURING MANUFACTURING PROCESS. ALLOWED HEAT AND EXHAUST GASES EMISSION. SUPERSEDES COMPLAINT NUMBER: 11035945 & COMPLAINT NUMBER: 11035942. NOW I HAVE THE MANIFOLD OFF THE VEHICLE I CAN CLEARLY SEE THE DEFECTIVE WELD.
DRIVER'S SIDE EXHAUST MANIFOLD BROKE WHILE DRIVING SLOWLY ON BUMPY ROAD. FLANGE THAT ATTACHED TO CATALYTIC CONVERTER SEPARATED FROM STAINLESS STEEL PIPING. NOW HEAT AND CARBON MONOXIDE IS PUMPING OUT UNDER DRIVER'S FEET. VERY LOUD. NISSAN SAYS "TOUGH LUCK" - WE ARE NOT PAYING. 54,000 MILES, 7 YEARS OLD.
DRIVER'S SIDE EXHAUST MANIFOLD BROKE WHILE DRIVING SLOWLY ON BUMPY ROAD. FLANGE THAT ATTACHED TO CATALYTIC CONVERTER SEPARATED FROM STAINLESS STEEL PIPING. NOW HEAT AND CARBON MONOXIDE IS PUMPING OUT UNDER DRIVER'S FEET. VERY LOUD. NISSAN SAYS "TOUGH LUCK" - WE ARE NOT PAYING. 54,000 MILES, 7 YEARS OLD.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.