Gee,
40,000 miles got mine in Aug 05, Engine light came on, Checked codes found misfire cylinder 4, Replaced ignition coil.....
Fixed 2 months later engine light again ( got worried again ) Checked codes again found random misfire ( Oh no could be the big one ) Nope cleaned fuel injectors......
FIXED , Btw i'm a tech at a GM dealership..... Buick, Ponitac, And GMC.....no Hummer
Will I have problems with the head? time will tell.
LOL
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White H3 5 Speed AdventureLUX, UCP, Gm Sliders, Sunroof, Monsoon, GOBI RACK, Pioneer Avic Z1, Xm, Ipod,Yaesu FT-8800R VHF/UHF, DOI Winch bumper, Warn M8000, Cooper Discoverer's 35's , Boulder Bead Locks
,PCMs For Less tune, K+N Air filter, Rancho 9000's