2001 Toyota 4Runner Engine Misses

2001 TOYOTA 4RUNNER
122,000 MILES • 6 CYL • 2WD • AUTOMATIC
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GGRIMES
  • MEMBER
  • 2 POSTS
Only when accelerating the engine misses. At first it did it maybe once a week. Now it does it anytime you accelerate. If you apply constant pressure to the gas pedal, engine runs fine. As soon as you apply pressure to the pedal it misses. If car is sitting still in neutral and I race engine I can also feel it miss. We bought the car with 70,000 miles on it. We have not doen a tune-up since we have owned it Should I try additive to fuel tank before I try anything else to clean injectors.
Jan 26, 2010 at 11:41 PM
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2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
Start with a tune up with OEM (Original Equipment Manufacturer) parts, cheaper parts are exactly that.... cheaper. If the check engine light is on, have it scanned for codes, this will most likely point to the cylinder that is misfiring.I have seen these coils go bad, causing this issue, but have also had to replace a few injectors, so start basic with the tune up (past due) then if you can find out which cylinder it is, you can check spark and see if that is the problem
Jan 26, 2010 at 11:55 PM
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