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1986 dodge truck, engine runs rich

I just put a better engine in my '86 Dodge W250, I switched the distributor and carburetor back to the ones from the old engine, it runs very rich now, terrible gas milage and the fumes are bad, I put a manual choke on it and even when it's fully open it still runs this way, what should I check 1st?

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It could be a bad accelerator pump inside the carburetor. The carb would need a rebuild kit.

Posted on Nov 26, 2013

  • Rob O'Neil
    Rob O'Neil Nov 26, 2013

    I'll check that out 1st, thanks



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Sounds like a problem I had with my '85 Dodge D150 Ram Prospector. In my case, the automatic choke was broken and it was starved for air during acceleration because the choke was always closed. It ran fine at idle or very slow acceleration. I wired the choke open and it runs much better, although it is much more difficult to start as the fuel mix is lean due to the extra air. Once it gets warmed up, though, it runs fine. I hear that the barrel carb on mine often has problems.

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