1993 Ford E-Series Van hard to start then black smoke

Tiny
PEDRODONNA
  • MEMBER
  • 1993 FORD E-SERIES VAN
Engine Performance problem
1993 Ford E-Series Van V8 Two Wheel Drive Automatic

troble starting. Then after many tries it starts but runs weak and black smoke out of tail pipe. Replaced the fuel pump, filter and plugs. No help
Saturday, August 9th, 2008 AT 5:20 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sounds like its too rich of a mixture

Possible causes include a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode.
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Saturday, August 9th, 2008 AT 5:34 PM

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