EVAP canister is the black box.
EVAP canister is the black box.
Okay guys i have cleaned the maf and throttle body and checked my plug wires and i had just replaced my plugs in june. All my wires are factory except the two by my headers on the driver side. When i am sitting at idel it does not do it to bad but if i but it in gear and just sit there it will start the stumble/ hesitate. But not all the time just does it 1 to 4 or so times and then quites for awhile. I found it does it mainly when the truck gets hot and not so much in the morning drive to work. Does anyone have a idea where to look next? Thanks guys
07 GMC ccsb 1500 4x4, front replacment bumper, 285 70 r17 on 17" black helo max 6, Dual flowmasters dumped.
You need to actually take out the plugs and inspect the porcelain for cracks. Look close. If thats not it, you need to get it scanned.
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