Question about 1986 Dodge W150

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86 Dodge W150 5.9L problems

1986 Dodge W150 with 5.9L(360) (105,000 miles on it)runs ok cold but starts to run bad once it warms up under load(regular driving). I'll be driving along and stomp the gas and the truck will fall flat on its face(works better if you ease the gas pedal down)! The only way I can keep it running after the problem starts is to pump the gas pedal. I have a new carb on it, new plugs, coil(MSD), wires(MSD 8.5MM), air filter(wide open). only the dist and cap and bal. resister have not been replaced. there is no smog or cat.converter on this truck. also the air cond. was removed as it is used as a farm truck. the Fuel filter and Fuel pump have also been replaced not long ago... It is at the local garage here and the guy has no idea what is wrong with it. The truck use to run very very stong and it started this after a long trip(3hrs). the problem is worse if you are in a head wind or pulling a boat(under load). the trans slips a little but not bad.

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  • ed209clark Jul 28, 2008

    taking it in on Wed. this week, will let you know. thank you!

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I would say check your timing or timing chain(with 100,000 miles it might need to be replaced)and readjust your new carb

Posted on Jul 27, 2008

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