Tl* the contact owns a 2010 nissan titan. while driving, exhaust fumes entered the cabin of the vehicle. the vehicle was taken to an independent mechanic who diagnosed that the exhaust manifold detached and needed to be replaced. the vehicle was not repaired due to the repair fees. the vehicle was not taken to a dealer. the manufacturer was not notified of the failure. the approximate failure mileage was 130,000.
Tl* the contact owns a 2010 nissan titan. the contact stated while driving approximately 20 mph, an abnormal sound emitted from the front end of the vehicle. the contact smelled fumes from the exhaust pipe. the failure recurred multiple times. the vehicle was taken to a dealer for diagnostic testing. the technician diagnosed that the exhaust manifold was fractured and need to be replaced. the manufacturer was made aware of the failure. the approximate failure mileage was 82,000.
During a road trip from fl to ny, i noticed a faint rattle underneath the truck but didn't think much of it. during that trip, i noticed my tailpipe didn't look like it was positioned properly. it was loose! the muffler to tailpipe mounting flange had completely rusted away from, which is apparently a common problem (reference blogs; titanspot, titantalk, clubtitan). i threw the tailpipe in the bed and kept driving. throughout that weekend, the vehicle operated normally without any issues. on our return trip from ny to fl the vdc off, slip and abs lights suddenly came on with about 100 miles left in the trip. the vehicle would not activate cruise control and 4wd wouldn't engage either. brought truck to the dealership in coral springs, fl for what i thought would be warranty service, considering i had the gold preferred nissan extended warranty. i was informed that exhaust components were not covered, and since the 'non' covered components caused electrical & sensor failures, they wouldn't warranty any of those components either. the heat damaged the plastic conduit, wires in the harness and the abs wheel speed sensors (and associated wiring). not to mention, dangerous exhaust gases can accumulate under the cab & bed of the truck without a proper means of exhaust routing. this is the third titan i have owned. all 3 (2005, 2006, & 2010) have had the exact same failure at that exhaust flange. this vehicle was the only one that experienced corresponding electrical & sensor failures. nissan must admit there is a problem with this flange connection design and materials. it is a poor design (when it fails, exhaust gases are pointed upward at the truck bed and sensitive electrical wiring). for nissan to ignore this defect is unacceptable. a straight connection, or better flange materials would go a long way in rectifying this recurring problem. *tr
Exhaust manifolds are obviously a flawed design that causes undue maintenance and pollution. i have had the exhaust manifolds replaced under warranty and they need to be replaced again, approximately six months later. nissan should be held accountable for this poor and unsafe design and be liable for replacement after the emissions warranty lapses. or they should replace the defective manifolds with a design that doesn't causes cracking. *tr