Last February it was the right side exhaust manifold bolts. This year it was the left side. Fortunately I knew what it was when I heard that familiar ticking noise. Again, I'm told this is a common problem with the Nissan Pathfinder, and I could have severely damaged my engine had I not brought it in when I had.

- Denver, CO, USA

Engine was making a ticking noise, so I brought it into the dealership and was told it was the right-side exhaust manifold bolts that had broken off. I was told this was a common problem, and if not caught in time would cause extensive damage to my engine.

- Denver, CO, USA

While the vehicle was parked fluid was leaking from underneath the vehicle. Consumer took vehicle to the dealer for inspection, and mechanic determined that the manifold needed to be replaced.

- Kearns, UT, USA

Same problem as everyone else with a 1995 Pathfinder - manifold bolts have broken and a very expensive repair is necessary. It's been bad for a long time and I've just ignored the ticking sound.

- Kingsport, TN, USA

Exhaust manifold studs broke on passenger's side of engine. Found it a common problem that Nissan won't fix.

- Leonardo, NJ, USA

Bolts on exhaust broke.

- Sacramento, CA, USA

@ 50K left manifold failure - replace/covered by warranty. @ 65K right manifold failure, not covered by warranty, paid out of pocket to replace. Now, @ 90K another manifold failure.

- San Diego, CA, USA

Driver and passenger side exhaust manifolds have failed and have been replaced. Carbon monoxide was entering directly into the passenger compartment and forced me to pay the ~$900 to have them repaired. Attempting to receive reimbursement from manufacturer.

- Slc, UT, USA

Passenger side front most cylinder had one exhaust manifold stud break off and after carefully inspecting other studs on passenger side at least one more is broken. Seems like a common problem, but very expensive to fix also very frustrating!!!

- Missoula, MT, USA

The left and right exhaust manifolds warped.

- Fayetteville, GA, USA

At my 60K service the mechanic diagnosed a faulty exhaust manifold and replaced it. Fortunately, this was covered by my extended warranty. I've come to realize that is was a common problem with Nissan Pathfinders although no recalls have been instituted. I'm concerned that this will reoccur again as my vehicle approached 100K.

- San Diego, CA, USA

Exhaust manifold stud broken

- Lisbon, ME, USA

Exhaust manifold bolts broken. Obviuosly Nissan is aware that this is a constant problem for Pathfinder owners. Their neglect at addressing this situation compounds my frustration. Wilson Nissan in logan Utah espects me to replace them at my cost every time they break, which could happen as soon as they are replaced. I suggest a class action lawsuit from all owners of these vehicles is in order to get Nissan to address this problem. Had known of this I never would have bought a Nissan product, and I never will again.

- Wellsville, UT, USA

Exhaust manifold studs broke, causing exhaust leak on right & left sides of engine.

- Norcross, GA, USA

Exhaust leak at right exhaust manifold. Three studs failed allowing manifold to pull away from cylinder head causing head warpage. Fourth occurrence on same side of manifold.

- Newcastle, WA, USA

Problem with exhaust manifold bolts that secure it to engine head. Nissan is aware of the design flaws. Manifold directs hot exhaust gas back into the exhaust system to be burned or expelled from the car. No recall, but Nissan knows the angle of the manifold curve is misaligned. Gas hits the metal head on and overheats the manifold and studs. The heat warps the metal and shears the bolts which should keep the part secure.

- Atlanta, GA, USA

Right side manifold failed, bolts broken in engine. This is a known Nissan defect and subject of many complaints.

- Port Jefferson, NY, USA

While driving heard noise from the exhaust system, and exhaust fumes were coming into vehicle. Vehicle taken to dealer, and informed consumer that bolts on exhaust manifold had broken off. Warranty expired, and there was no recall. Feel free to provide any further information.

- Austin, TX, USA

Exhaust manifold bolt broken, also happened 5/00 with right manifold.

- Proctor, VT, USA

Three bolts from engine manifold broke while driving at highway speed of 55 mph. Dealer/manufacturer were not notified at this time. A mechanice at a garage stated the bolts are made of aluminum and that they break very easily.

- Spartanburg, SC, USA