Four problems related to tank filler pipe and cap have been reported for the 2006 Nissan Xterra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Nissan Xterra based on all problems reported for the 2006 Xterra.
After filling tank gas tank today (approx. 1/2 full), I noticed that my check engine came on and stayed on. Also, my fuel level gauge did not register that the tank had been filled. I checked the fuel cap several times to make certain the cap was tight - which it was. Consequently, I went to firestone for a diagnostic test and discovered that the fuel-sending unit had malfunctioned. I was informed by the serviceman that the cost for repairs was $388.
Today, I had about 1/4 tank of gas and filled up before taking a short road trip. When I turned the car back on, the gas gauge read empty and the low fuel light was on. I pulled over, checked to make sure the gas cap was on properly and started the car back up. The gauge still read empty, the low fuel light was still on, and a few miles down the road, the service engine soon light came on. I have found out that this is caused by a defective fuel system sensor that is a know defect.
Noticed it the first time last night. I had just under a 1/4 tank of gas in my 2006 Nissan Xterra, and drove 15 miles and pulled over to use the phone. Left the engine running, and suddenly noticed the "service engine soon" light was lit, and the gas gauge read empty. Impossible, and illogical. Turned off the engine, turned back on. . . Same thing. Drove to gas station, filled up, made sure clicked the gas cap three times for proper seal. Gauge read that the gas tank was full, but the "service engine soon" light was still lit.
I have a 2006 Nissan Xterra with 49,969 miles on it. After filling up the tank with gas the gas gauge read empty and the warning light remained on. In addition, the service engine soon light illuminated. After two more trips the gas gauge began to read correctly but the ses light remained on. I checked the gas cap was tight and subsequently spoke to a friend with the same vehicle that has had the same problem. I have not yet taken the vehicle to a Nissan dealer, because I understand the problem is most likely a fuel sending unit and will cost $300 - $600. My fear is that this problem will happen when my wife is driving and she will either run out of fuel, or think that she has run out of fuel in error.