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2002 Chevy S-10

Tiny
DHAMBY1745
  • MEMBER
  • 2002 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 115,000 MILES
My s-10 has started bogging down when goining up hill while the engine keeps reving up. Other wise it runs fine. The Service engine soon light has come on twice. When checked it came back as a MAP or MAF sensor fault or a EGRsystem fault. Ive cleaned the MAF sensor and it did not help. What to do next? The engine loses all power going uphill but the engine reves up as I give it more gas.
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Monday, July 12th, 2010 AT 9:11 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Possibilities: Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft 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 it.
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Monday, July 12th, 2010 AT 9:14 PM

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