Hello everyone, I have a problem in which my 2002 naturally aspirated V6 xterra looses power at lower RPM.
I noticed this a while ago as it would have some hesitation when starting from a stop sign, then I did some light offroading and the truck slowed to a stop going up a steeper hill in 1st gear low range. the motor never died but you could press the throttle in all the way and nothing but the engine tone would change and the truck would not move ( luckily found a different route but barely made it out )
I got back to the road and hit the highway and it was like nothing really happened. Talked to a mechanic worrying it might be the cats and he said it was very unlikely. So I replaced the fuel filter, air filter and cleaned the mass airflow sensor. I also then checked the voltage output of the mass airflow sensor and knock sensor and they appeared to be alright from what I could tell.
This did not seem to help the problem. I had to try to pull out a vehicle the other day and I did not even have the power to spin the wheels.
There are no lights on the dash and it shows no codes. Any ideas?
Thanks!
I noticed this a while ago as it would have some hesitation when starting from a stop sign, then I did some light offroading and the truck slowed to a stop going up a steeper hill in 1st gear low range. the motor never died but you could press the throttle in all the way and nothing but the engine tone would change and the truck would not move ( luckily found a different route but barely made it out )
I got back to the road and hit the highway and it was like nothing really happened. Talked to a mechanic worrying it might be the cats and he said it was very unlikely. So I replaced the fuel filter, air filter and cleaned the mass airflow sensor. I also then checked the voltage output of the mass airflow sensor and knock sensor and they appeared to be alright from what I could tell.
This did not seem to help the problem. I had to try to pull out a vehicle the other day and I did not even have the power to spin the wheels.
There are no lights on the dash and it shows no codes. Any ideas?
Thanks!