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Old 05-15-2013, 02:20 PM   #1
toothenator
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Join Date: May 2013
Location: Houston, TX
Posts: 31
start up idle

I have a 2000 gmc with the 4.8 in it around 150k. The motor has new plugs and wires and a new idle air control valve and a relatively new fuel filter yet sometimes on the start up, cold or not, it will die or have a difficult time at idle. Rev it a few times and it's good after that.

Any suggestions?
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