shaking and hesitating?

130,000 MILES • 6 CYL • FWD • AUTOMATIC
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MISTER MIKE
  • MEMBER
  • 2 POSTS
when i am accelerating up to the speed of 45 mph my car starts to sputter and hesitates for a few seconds then it stops.....my other problem is my car has 130000 miles on it and i have never changed the spark plugs could that maybe have something to do with it?it also shakes when i press the brakes i even changed the brakes and put new one and rotors and it still does it ......what do i do??????
Jan 26, 2011 at 7:41 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.
Jan 26, 2011 at 11:05 PM
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