Question about 1983 Ford F150

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1989 Ford F150 runs fine then starts smoking black smoke and quits. After 20 minutes will restart and go again.

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  • jazzinrescue Nov 17, 2009

    That is all I know about it. I will find out more info today. I want to buy this truck but not if it is going to cost an arm and a leg to fix it. I truly appreciate your help.

  • gerry bissi May 11, 2010

    running way too rich. check for fault codes in engine computer. EEC.



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You have an excess fuel delivery problem. Black smoke indicates that too much fuel is entering the combustion chamber. If this vehicle has a carburator, check the float bowl level. If it is injected the main things to look for would be a stuck throttle position sensor or an injector that is not closing

Posted on Nov 16, 2009


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Sounds as if you are running extremely lean.Has EGR been bypassed maybe?
What is fuel pressure,on that vehicle the fuel pressure regulator may be adjustable.Some of these had an allen screw inside the vacuum port where you could richen the mixture some.Also try backing down on the timing a few degrees.

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