I tried to do something with my 2011 SR5's power lock on the driver's side front window/lock controller, more specifically the wiring to it. Without getting into detail why or what I was trying to do, I made small wire insulation openings to access each of the copper wires. Visually it does not look like I cut the copper at all so continuity should still be there. So, I wasn't able to do what I set out to accomplish, i covered the exposed copper with Plasti-Dip to re-insulate them separately. Now, my driver door window and lock buttons don't work. Neither does the rear window up/down switch work, which I never touched. I believe I covered and checked all the fuses that may have blown associated with window operation. I bought a new driver's side window/lock up/down switch, but it still doesn't work. I'm going to re-check wire continuity and power tomorrow. If anybody has any other ideas of what else may have happened, I'd appreciate to hear from you.

I’m having the exact same issue with my 2000 Limited 4x4, and it’s been frustrating trying to track down the cause. Like you, I’ve replaced the air filter, changed the spark plugs, and even cleaned the MAF sensor, but the problem persists. From what I’ve read and experienced, it could be a failing fuel pump, clogged fuel filter, or a throttle position sensor (TPS) issue. A weak fuel pump might not be delivering enough pressure under load, causing the engine to bog down when you give it more throttle. I’m planning to check my fuel pressure next to see if that’s the issue. Have you looked into that yet? Let me know if you’ve found a fix—I’d love to get this sorted out!