Vehicle make/model 2003 Chevy Silverado Mileage = 113000 Engine size = 4.8 dash lights = no codes = no work done prior = none work done to repair = changed sparkplugs yesterday, no change tech = MW question = my truck keeps stalling when I come to a stop. Sometimes it will stay running when I start it, maybe 30 - 60 seconds. As long as I give it gas it stays running.
MW: There are a few things to look for. First look in throttle body and behind throtle blade for carbon build-up. Clean the throttlebody. This is most likely problem. Also check for low fuel presure. Also have had problems with the intake manifold gaskets leaking vacuum. Usually this will give an unstable idle and stall when hot, but not cold. These suggestions all assuming no codes as you have stated.
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