Guest TM240Z Posted November 7, 2002 Share Posted November 7, 2002 Non Z related. I just bought a 83 chevy 4X4 305 to drive in winter. When its cold it has a dead spot at part throttle,like there is no gas going in. When it's warm it runs great.The truck is stock. Would this likely be a vacuum problem or something like the accelerater pump? Quote Link to comment Share on other sites More sharing options...
Mike C Posted November 7, 2002 Share Posted November 7, 2002 Typical carburetor. Probably something do do with adjustment of the choke or its enrichment. Stupid amount of vacuum controls on those models. Is it ESC also? Sometimes a tuneup (plugs, wires, cap, rotor) will cure some of those ailments. Also check the air-preheater from the manifold and make sure the vacuum port is working on the air cleaner. Quote Link to comment Share on other sites More sharing options...
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