CYLINDER #3 MISFIRE
I have a 99 tacoma V6 prerunner with 252,000 miles. I am the original owner and have taken great care of it. Check engine light came on and engine had rough start and idle it also skipped and jerked when accelerating around 40-55mph. So far I started out small eliminating all the quick fix solutions. Plugs and wires were good. Cleaned mass airflow sensor and throttle body, swapped ignition coils around still same problem rough idle then after the engine warms up it skips almost on cue i'm assuming that's the cylinder #3 misfiring. Went ahead replaced fuel injector.......same problem. had a compression test done cylinder 3 was low as engine warmed up compression came back up. Took for test drive afterwards same problem especially when reaching speeds of 40-55mph truck skips and jerks really bad. Took to a 2nd mechanic and he said to replace my ignition control module (his scanner picked up multiple misfires) wasn't cheap about $400 still same problemhttp://i.cdn2.tacomaworld.com/forum/images/icons/icon8.gif. Any suggestions or answers would be greatly appreciated.