Four problems related to manifold/header/muffler/tail pipe have been reported for the 2006 Nissan Altima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Nissan Altima based on all problems reported for the 2006 Altima.
Car burning 3 quarts of oil weekly, resulted in catalytic converter code, replace converter, still burning accessive oil with smoke bellowing from tail pipe. Have seen previous recalls while searching for a solution for the same make of my car. Bought used afraid the engine is going to blow.
Between 3,000 mile interval oil changes, there is significantly amount of oil consumption. There is no white or blue smoke that is visible from the muffler, no oil leaks are visible and no burning odor. When checking oil fluid between 3,000 mile intervals, have noticed the oil falling below minimum line on dipstick. On that same note, the drive way does not show any signs of oil leak coming from the car.
On 2-17-14 I had check engine light come on and on Friday had dealer put it on the diagnostic. Result was po 420 replace manifold/bolt and gaskets. This was at 132,000 miles but we have problems with excessive oil consumption also. Change oil every 3000 miles but end up putting in 4 more quarts besides oil change amount before next oil change is due. Had both O2 sensors and mass airflow sensor changed last year and passenger front side ball bearing replace. Two yrs earlier had both crank sensors replaced. May have to have cat converter replaced if keeps drinking the oil but was told by dealer if replace cat convert still will have oil consumption problem ( so means company really hasn't fixed problem if have it replace and will still happen). Expensive repairs cranks about $500, O2 about $300 ea. , mass airflow $700, and this manifold problem is $780 + 106 for diagnostics. Fix problem and look at other blogs and see many have this problem with this yr of Altima.
The contact owns a 2006 Nissan Altima. The contact noticed that the tail pipe was emitting excessive smoke. The vehicle was taken to the dealer who stated that sludge was present because of improper vehicle maintenance. The manufacturer agreed with the local dealer and offered no additional assistance. No repairs were performed due to the cost. The urrent mileage was 47,000 and the failure mileage was 46,000. Updated 04/25/11.