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1985 Chevy S-10

Tiny
JOSH BARR
  • MEMBER
  • 1985 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • MANUAL
  • 200,000 MILES
My truck stalls out when you give it gas and loses power until you get goin andi have replced eveythini can think of and itis doi the same thing I really nedd help with the diagnosis
Sunday, January 17th, 2010 AT 1:46 PM

1 Reply

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

Oygen 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

Note:If it doesn't apply, disregard.
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Monday, January 18th, 2010 AT 5:44 AM

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