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2001 Mercury Villager Sputtering

Tiny
SPWRAY
  • MEMBER
  • 2001 MERCURY VILLAGER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
My car has been sputtering when I go uphill for about a week. I thought that it was the plugs or the wires and intended to fix them this week. Yesterday, it began sputtering the entire time that I was in the car, even when idling. It finally got so bad that I could no longer gain momentum and had to be towed home. At the same time that this was happening my speedometer began going up and down wildly. What could have caused this? Is it my transmission or something to do with the computer?
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Monday, June 21st, 2010 AT 1:36 PM

1 Reply

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

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position 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
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Monday, June 21st, 2010 AT 8:09 PM

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