Lurching Engine in '99 Tacoma?
I have a '99 4WD Toyota Tacoma, and when it starts up with a cold engine, it throbs. The RPM gauge jumps up and down, and the car lurches forward when I put it into drive. This throbbing basically shakes the entire body of the vehicle. My dad speculates that it is due to a dirty O2 sensor causing a bad air-fuel mixture. What do you think is wrong, and how can I fix it?
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