1984 Chevy S-10 Skips

1984 CHEVROLET S-10
30,000 MILES • 6 CYL • 2WD • MANUAL
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JPECK93
  • MEMBER
  • 1 POST
my truck skips everytime i hit the gas. one of the sparkplugs was unplugged for a while, i changed that sparkplug and its still skipping like but its only when i hit the gas when it is idleing it is fine and when i rev it up its fine
Dec 31, 2009 at 6:55 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Your possible causes could be one of the following:

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
Coil and Rotor
Dec 31, 2009 at 8:56 PM
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