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I have a 89 Chevy caprice 305 tbi. It died driving down the road and now won't start unless pumping the gas pedal. When I turn the key to start it only fires if I'm pumping gas and got keep pumping it to keep it barely running stop pumping gas pedal and it dies. Please help.
Location: East of Seattle since 1992, 615' Elevation, Zone 8b - originally from SF Bay Area
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With throttle body injection it's like a carburetor with one or two injectors shooting the gas into it, an intermediate step between the old typical car and the modern (port) fuel injection into each cylinder. The fuel pump could be weak, or the injector clogged. By the behavior you have I would think the latter. Hoe far down the road before it died? I had a 1989 S-10 Blazer with that setup and it would show a light and die about the time it warmed up. Turned out to be the choke sticking. A little WD40 fixed it after a few days trying different things.
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