2004 Toyota Pickup black smoke running rough

2004 TOYOTA PICKUP
41,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MEDIC
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  • 2 POSTS
I am getting the worst fuel milage ever.when the trucks idles then I give it the fuel black smoke streams from the tail pipe the truck when driving sams to have a small miss .help what could be the problem
Dec 28, 2007 at 2:28 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Do you have a check engine light On or has flashed.

Rich mixture could be stuck in the open loop mode-being caused by the coolant temperature sensor or the snitcher oxygen sensor is not switching
Dec 29, 2007 at 2:31 PM
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