Mechanics

GEO METRO GAS PROBLEM

1995 Geo Metro

Engine Performance problem
1995 Geo Metro 4 cyl Front Wheel Drive Manual 160000 miles

when pulling out you can floor the gas and it barely runs, then you very easily back off the gas and it takes off. No engine lite on.
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Brent42
May 10, 2009.



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

Rasmataz
May 10, 2009.


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