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i have an 87 blazer that's got same prob and after searching and asking for help i found this to be a common prob with not many answers but this is what i came up with, first of all have you tried all the usual adjustments? and is yours injection? if so there is a capped of idle screw to adjust (after removing cap) if still no joy and your really stuck then do what i ended up doing by puting a return spring on throttle linkage, mine been fine since i did this.
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∙ 12y ago
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