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Originally Posted by spackelman
I have a 2002, 2500hd, crew cab 8.1.
Had a similar problem. Intermittent missing.
One of the plug wires was rubbing against the steering column. It only arc'd when the steering column was turned in a certain position.
Drove me f--kin crazy. Check it on your truck.
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Thanks spackelman, i check and it`s not that.
I read in the suburban forum that it could be my camshaft position sensor. My brother has a 2001 gmc with a 4.8L also, so i will swap parts with him and see if that works.
does anyone know where the camshaft sensor is located on my 4.8L?