1997 Chevy Lumina hesitation

1997 CHEVROLET LUMINA
100,800 MILES • 6 CYL • FWD • AUTOMATIC
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MIKE55060
  • MEMBER
  • 1 POST
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????
Feb 23, 2010 at 6:14 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 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.
Feb 23, 2010 at 6:17 PM
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