04 Tacoma, manual 5 speed, SR5, V6
Press the accelerator pedal and truck does not accelerate or accelerates slowly. Feels like the truck is going to stall or die. Press the pedal all the way down and it starts to get power. At times it is best to just pump the throttle pedal and it will accelerate. Does not do this all the time and seems to be worse on the trip home from work, but I have had it do this in the morning. Does this when you slow down and then try to accelerate, not every time and runs good at cruise speed. Again does not do this all the time. But enough to be dangerous in traffic.
What I have checked
In the service manual I have done the Throttle Body on Vehicle Inspection, check for throttle linkage is free, inspect throttle control motor for operating sound, inspect throttle control motor resistance, position sensor resistance, pedal sensor resistance . All within range. I didn,t check the accelerator pedal position sensor using the Hand-held Tester because I don't have the tester.
I thought it was the Throttle Position Sensor but it is within range at 1.6 ohm, Range is 1.2 to 3.2 ohm, The other sensor resistances are good.
Any one seen this? What is next ? Replace throttle body assembly?