1997 Lincoln Town Car Hesitation at full throttle

1997 LINCOLN TOWN CAR
127,000 MILES • V8 • 2WD • AUTOMATIC
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FBROOKS
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I just bought a 1997 Lincoln Town Car Signature Series and I have changed the spark plugs, the wires, the oil, the oil filter, the air filter, and the fuel filter. it runs great at low speeds and with moderate acceleration but as soon as I try to get on the highway or put the pedal to the floor it bogs way down and I actually loose speed. I have grown up around cars and I have never ran into this problem. SOMEONE PLEASE HELP!
Sep 13, 2009 at 9:25 AM
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RASMATAZ
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1997 Lincoln Town Car Hesitation at full throttle

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
Sep 13, 2009 at 10:05 AM
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