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1997 Chevy Lumina hesitation

Tiny
MIKE55060
  • MEMBER
  • 1997 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 100,800 MILES
I recently changed plugs and ires from standard plugs to champion double plat power plugs gapped to vehicle.060 now when driving up hills there is a hesitation why?
Tuesday, February 23rd, 2010 AT 6:14 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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Tuesday, February 23rd, 2010 AT 6:17 PM

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