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1995 Toyota 4Runner

Tiny
WENDY47
  • MEMBER
  • 1995 TOYOTA 4RUNNER
  • 6 CYL
  • 2WD
  • MANUAL
  • 19,000 MILES
The engine sound likes its working overtime and I don't get there very fast also eating a lot of gas. When I put the gas peddle to the floor for exceleration I don't when going up a hill I loose speed also chuggs at lights
Tuesday, December 8th, 2009 AT 2:00 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Oxygen sensor
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
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Tuesday, December 8th, 2009 AT 2:25 PM

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