1991 Ford Thunderbird

Tiny
K2TRUESTORY
  • MEMBER
  • 1991 FORD THUNDERBIRD
1991 Ford Thunderbird 6 cyl Two Wheel Drive Automatic

hi. I have a thunderbird and when I put it in drive and start to pukll out it hesitates a HUGE ammount and stalls out than wont strat up. I just replaced the Alternator. Any ideas on what it could be? K thanks
Wednesday, July 29th, 2009 AT 7:14 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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
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Thursday, July 30th, 2009 AT 3:50 AM

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