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2003 Chrysler PT Cruiser Engine runs rough @ 2500 RPM

Tiny
CAPTHOWDY
  • MEMBER
  • 2003 CHRYSLER PT CRUISER
Engine Mechanical problem
2003 Chrysler PT Cruiser 4 cyl Two Wheel Drive Automatic

I have a 2003 pt cruiser and when the Rpm reaches 2500 the engine runs rough and wont go any higher
Wednesday, May 26th, 2010 AT 6:46 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test the following below

Oxygen sensor
Catalytic converter
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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Wednesday, May 26th, 2010 AT 6:54 PM

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