I have noticed that my 2k A/T max has been losing signifigant top and bottom end..

I noticed this high pitch sucking sound from my pop-charger intake (sounds like a big air leak in a tire) but it stops exactly at 2500 RPMs,

Then when I give it WOT the RPMs shoot up to 5000 and you can hear the VIAs open, and the RPMs move very slowly to 5800-6000 where it finally shifts.

Now heres the really strange part; The car is not really accelerating???

Is it possible for the torque converter to not be transferring the power to the tranny? can the tranny slip without a noticable high rev in the RPMs and a thunk into gear?

 

Maf!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

I know it sounds like it, but I just put in a Brand New MAF 11k miles ago.

 

Id say MAF too. Its possible its already bad???

 

can a MAF go bad in only 11K miles?

 

shouldnt go bad after 11k frank. I would suspect apossible vaccuum leak somewhere in your system. that can also cause a loss in power. any other symptoms with it? the high pitch around 2500 rpm is normal in maximas with the popcharger, I get it too.. possible torque converter as you said too ( more so suspicious that it is torque converter than anything else).

 

make sure you have the right amount of ATF. sounds like your low on tranny fluid

 

fluid is at perfect level, and still that nice red color (just changed with mobil 1 about 7k miles ago)