Question about 1997 Ford F350 Crew Cab

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Ford F-350 6.0 Turbo Diesel - Severe Hesitation at Take Off

Hesitation at take off, a puff of black smoke from exhaust, then runs great. I've changed all of the filters. While in neutral or park, rev engine and no smoke, rpms are normal. Only when under a "load" does it hesitate, black smoke then "catch up" and run great.

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Sometimes when the motors under enought pressure it will black smoke..so mabe the transmission is hanging up or something in first gear,,,i can rev my truck up all day and it wont black smoke when these a sever load o it and i hammer down it putts a bind on the motor and fuel is steadly being pump into the motor causing unburn fuel witch is black smoke..so maybe you want to go check the transmission or the fuel PUMP not the filters

Posted on May 17, 2009

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SOURCE: 2004 Ford F-350 6.0 Turbo Diesel - Severe Hesitation at Take Off

Some of these engines have a place to drain water out of the fuel system.. Some fords actually have a stick under the hood that you push or pull That opens a valve on a water collection bowl. It's not labeled usually. It might state where it is in the owners manual under fuel water drainage or something similar.. if that bowl is full it will cause hesitation... If it gets over full it will cause runability problems. Another possibility since you said it's black smoke is one of your injectors is sticking at low rpms and squirting raw fuel into the cylinder till the rpms get up enough to burn that fuel off completely then then the injector works a little better.... Do you notice any missing... Feel something under the hood like the air cleaner housing and make sure the vibration is constant and doesn't have a small sudden shake and the n smoothe... And then a small sudden shake again.
If it does have this shake you can trouble shoot which injectors by with the engine running loosening an injector line and seeing if the engine runs worse or not.. If it runs worse tighten it up and move to the next line till you unscrew one and feel and hear no difference... When you find that one that's the injector with the problem.

Posted on Apr 22, 2009

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2004 Ford F-350 6.0 Turbo Diesel - Severe Hesitation at Take Off


Some of these engines have a place to drain water out of the fuel system.. Some fords actually have a stick under the hood that you push or pull That opens a valve on a water collection bowl. It's not labeled usually. It might state where it is in the owners manual under fuel water drainage or something similar.. if that bowl is full it will cause hesitation... If it gets over full it will cause runability problems. Another possibility since you said it's black smoke is one of your injectors is sticking at low rpms and squirting raw fuel into the cylinder till the rpms get up enough to burn that fuel off completely then then the injector works a little better.... Do you notice any missing... Feel something under the hood like the air cleaner housing and make sure the vibration is constant and doesn't have a small sudden shake and the n smoothe... And then a small sudden shake again.
If it does have this shake you can trouble shoot which injectors by with the engine running loosening an injector line and seeing if the engine runs worse or not.. If it runs worse tighten it up and move to the next line till you unscrew one and feel and hear no difference... When you find that one that's the injector with the problem.

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===
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