I have recently started having problems with my 2007 Tundra 5.7. At any given moment or speed I can hit the gas and it looses total power and sounds like it hits a rev limiter. No codes in system and no no other symptoms. I have run tanks of gas, fuel additive (BG 44k), cleaned MAF, replaced MAF with OEM, cleaned throttle body, dropped exhaust, crossed battery cables, watched live date while driving and when its fouling up. At any speed if the rpms reach 2500+ it sounds looses all power, I can do this at 5mph and 75 mph, if I let off the gas it picks back up but if I hit the 2500 rpm area it does it again. Anybody out there had this problem and if so what cleared it up, or if anybody has any good ideas of thing to check/do I am all ears.

 

I am having this exact same problem and the dealership has no idea! Did you ever find a solution??