Loss of Power

I have a 2007 Tacoma 4x4 with only 48,000 miles. Recently it has started losing power abruptly while accelerating. When you slow down to turn in some where and you accelerate again, it will start off normal and then all the sudden loss power briefly and then recover. The RPM's drop to about 1000. The vehicle never jumps like it is losing fuel. The computer has been hooked up and it is not throwing any codes. Anyone have any suggestions?

 

Check the brake light switch. Sounds like maybe the "accelerator interlock" programming is kicking in. (assuming the pedal chop recall has been completed) Have someone watch your brake lights while you wiggle the pedal around to see of they light will light up without actually depressing the pedal.

 

Yup. Either bad switch, or bad technique.

Don't do two-footed braking, it's a bad habit anyways.
If your left foot is still resting on the brake, when you hit the gas, it'll ramp up normally until the throttle gets to either 25% or 33%, then it'll shut down to idle.
When you let off the brake, it jumps back.

 

Thanks i will check it out.

 

Looks like you may be on to something. If you barley touch the brake pedal with one finger it will turn the brake lights on. It literally takes no pressure on the pedal and it comes on. Thanks for the tip, I am not sure if the brake pedal recall has been done or not. Is this switch something I can replace?

 

There is no brake pedal recall.
It was the floor mat recall from the "uncontrolled acceleration" incidents that cost Toyota billions in lost sales, R&D, and bad PR over something that was not their fault.

Part of the recall was to trim the bottom of the accelerator to keep a floor mat from snagging on it. The other part was an ECU reflash to install the failsafe programming described above.

The brake switch should be adjustable with a pair of rings or a setscrew... just move it closer to the pedal so it takes slightly more pressure to activate the light. You don't want it out so you have to plant the brakes to light up, for those times that you might want to briefly "flash" the lights, but you don't want them lighting up when you hit a speed bump.