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Posted on Dec 26, 2008
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F-150 4.9 lt .once it starts, blowing heavy black smoke

1988 f-150 engine gets fludded with gas. once starts up .starts blowing real heavy black smoke out tail pipe

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  • Anonymous May 11, 2010

    have you removed any spark plugs? if so are they all wet or just some? Check vac line to fuel regulator to see if it is sucking up fuel through the regulator.

  • Anonymous Mar 18, 2014

    Wants to start and blows black smoke and dies, did get it to start by removing air filter hose

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  • Posted on Dec 26, 2008
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Sounds like its flooding(excess fuel)Try squeezing the main fuel line enough to allow enough fuel through for engine to run smoothly if that improves running of engine either fuel pump needs replacement or pressure relief valve has failed or has no vacuum to activate it.Dirty or failing injectors can also cause your problem,try putting a can/bottle of injector cleaner in fuel tank to see if it improves running of engine.Air flow meter can also be an issue.A few potential reasons foryour problem and too hard to lock it down to a single cause without the vehicle being in front of me to do the appropriate tests so have just provided the basic causes and hope your able to take it from here and solve the problem.Good luck

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  • Posted on Dec 26, 2008
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Ck your map sensor make sure you have good vac. clean the plugs ck. fuel pressurethat should solve it

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Black smoke could indicate blow by in a cylinder or the valves might not be closing properly. Start with a compression test.

If you need further help, reach me via phone at https://www.6ya.com/expert/chris_b82b45c59bcf133d

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It blows black smoke wen i get on it real hard and it also does it wen i let it sit and idle it dies sometimes
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My truck blows white smoke
Hello!
There are two differnt reasons for black and white smoke coming from the tail pipe.
Black smoke means fuel runs rich (car getting to much gas). Check fuel pressure/air filter.
In some cases the white smoke means car is burning oil or transmittion fluid. Have tem checked/replaced.
If you can feel a smelly smoke it can be catalytic converter.
In a worsest scenario if car blowing white smoke it can be engine coolant is getting into an engine cylinder from a bad head gasket ,or a warped/cracked head. So you need to keep your eye on coolant level and check your engine for overheat. Also might be good to check your oil for traces of coolant (on a dipstick it would be a milky substance mixture of oil and coolant).
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I have a 1988 dodge ram d250 with a 318 fuel injected motor that runs rough when u hit the gas and it is blowing black smoke out of the til end and i do not know why

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