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1994 Ford Tempo Lagging when accelerating

Tiny
JEDIRAY15
  • MEMBER
  • 1994 FORD TEMPO
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
I have a Tempo very reliable but suddenly it started to lag from when I start diving off. I notice the car revs pretty high before going to overdrive. I checked the tranny oil but it's full. Hope you helpful people out there can tell what could be wrong. Your response is very much appreciated. Thank you.

Ray
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Monday, November 23rd, 2009 AT 12:51 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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Monday, November 23rd, 2009 AT 1:01 PM

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