Throttle response lost

Hello my 5.7 tundy looses throttle for a second then comes back. Seems to me it goes to safe or limp mode for a second and releases. No codes or check engine light. I replaced the brake switch as it is used in the ecu so you can not use throttle and brake at same time. Checked pedal looked clean. Have not taken apart throttle body sensor yet.

 

Let us know what you find out . . .

 

Clean throttle body with carb cleaner, maf with maf cleaner

 

Throttle body cleaned with slight scoring on bottom left side, maf sensor cleaned.

 

it did it after cleaning, or before???

 

Was there prior,

 

Butterfly valve not sticking on it

 

...are people removing the MAF from the intake before cleaning? Screws were in there pretty good so I let them be.

Just curious.

 

You don’t have a pedal commander or the likes do you?

 

All stock, no pedal commander

 

What year is your truck? Have you checked your vin for any recalls like the fuel pump recall recently?

 

Tundratoofun, it is active after 40km/hr. No recalls, on my 2008 for fuel pump.