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Discussion Starter · #1 ·
ok, i've been having an issue since i got this truck. it floods, i mean black smoke floods, almost all the time. especially under hard acceleration. what could possibly cause this. this is why i posted the question about the MAF a little while ago. no CEL, starts ok, but takes a while if it has been sitting. also noticed that around 4200 rpm under acceleration the engine stumbles, sometimes for several seconds, then catches again. please help, don't know what to do
 
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