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2002 Chevy Suburban Hesitates when accelerating.

Tiny
GREGMACK650
  • MEMBER
  • 2002 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 76,575 MILES
When I stepped on the accelerator, the car hesitated and then it DIED. The last message that was displayed was "Check Engine Oil Pressure". The truck will start and idle but once you step on the gas, it sputters and DIES !
Wednesday, January 13th, 2010 AT 7:39 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the following below

Oxygen sensor
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
Cap and Rotor
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Wednesday, January 13th, 2010 AT 8:29 PM

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