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I have a stock 93 auto with 200,000 miles. I've run it on vegetable oil for 1&1/2 years. It got to where it wouldn't idle when hot on diesel. And going down the interstate on diesel it would die if I let of the accelerator. Now I can't get it started. Just some white puffy smoke comes out.
I tried cranking and spraying intake/carb cleaner(that's all I had, should I try ether?) in the intake manifold. She started coughing a little but no start.
Could it be the injector pump bad even if I have fuel going to the injectors? Maybe not enough pressure to open the injectors? What about the injectors themselves? Or low compression? What should I check???
thanks
jason