2006 GMC Sierra locate 4th cylinder on diesel

2006 GMC SIERRA
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JENNINGS1
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Engine Mechanical problem
2006 GMC Sierra Four Wheel Drive Automatic 95000 miles
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need to locate 4th cylinder to change glow plug
Aug 21, 2008 at 9:35 AM
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BRIAN 1
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it's on the left side of the engine.(drivers side)it's the second one in.they go 2,4,6,8 from the front of the engine.
Aug 21, 2008 at 5:53 PM