First things first, I am new and this is my first post so hello to all.
I am experiencing some vibration issues with my Pathfinder. It's a 2001 make with auto trans. Just hit over 200xxx kms/120xxx miles.
It began vibrating shortly after start up and then would go away once I started accelerating. When firing the vehilce up, the RPMs would go up normally, then a few moments later the rpms would sink to about 500 (or in that neighborhood) and of course, this is where the vibrations occur. It wouldn't do this before, and it's quite noticeable. This past weekend, I changed the spark plugs (it was definately needed) replaced the air filter and cleaned the throttle body. Unfortunately, this didn't fix the problem.
It seems to becoming more frequent and not just when I fire it up. I do a lot of stop and go driving around town. Now I am finding that it's vibrating when I come to a stop until I begin accelerating again. In motion, it operates normally, just when it's at idle at a stop or when I have it turned off and have to turn it back on. This vibrating doesn't happen all the time btw, more like 2/3rds of the time. Also, power is not the same when I begin accelerating from this state until I begin cruising fast enough.
I am not getting a CEL. I am thinking a contaminated sensor that should be cleaned/replaced? Maybe the coil packs?
Thoughts,
-Hanky
