my 1999 cadillac escalade

1999 CADILLAC ESCALADE
100,000 MILES • V8 • 4WD • AUTOMATIC
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LADELL63
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my 1999 cadillac escalade has a 5.7 litre, my truck hesitates or try to stall will driving 50 or more mile an hour, i change spark plugs and wires, new rotor and distrib cap ,air filter i have no service egine light right now but in the past i had one wich stated engine misfire but is is not missing and i can put my foot on brakes and press gas and the engin do not mist or **** off, please help me
Aug 23, 2011 at 4:25 AM
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RASMATAZ
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Refer to this link for additional help: https://www.2carpros.com/articles/engine-hesitates

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.
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.
Aug 23, 2011 at 4:30 AM
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LADELL63
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thank you
Aug 23, 2011 at 4:59 AM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
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You're welcome-Come again
Aug 23, 2011 at 8:11 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.