2001 Pathfinder Acting Strange...

[Nitsua98]

I have a 2001 Pathfinder. Lately, I've noticed that when trying to quickly pass someone on the highway, the car downshifts but does not gain speed like it should. Even if the car drops into third and 3500 RPM, the speed just will not increase at a rate any higher than a snails pace. Even on roads at lower speeds, (30-50 MPH), a rapid downshift to try and gain speed will result in the engine downshifting and the RPMS increasing, however there just isn't an increase in speed nearly as great as there should be. Any ideas?

[jsm02cpa]

check your air filter and make sure it's not dirty. Sounds like you aren't getting performance out of your engine.

[sicwitit]

or the transmission is slipping

[nheitz]

...maybe the fuel filter.

[Empty V]

...maybe the fuel filter.

It sounds like the engine is being starved which could be the fuel filter but I'm not a mechanic. I had the same issue, changed the fuel filter and cleaned the MAF sensor and it ran like new.

Billy