Test the Resistance on Each Coil. Unplug the coil pack's electrical connector and use a wrench to remove the coil pack from the engine. Set the ohmmeter to the 20,000 ohms range and turn it on. With the meter leads, touch the spark plug wire terminal on each coil. also check the high tension leads for a short..
I have a 2001 Yukon it's not getting no fire I have changed the crank shaft sensor any ideas.
2001 GMC Yukon Base
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my yukon has no power my battery and alternator is good but no horn light or ding when key in what can be the problem
2007 GMC Yukon SLT1
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I have power to everything will crank over just won't fire replaced coil packs and no spark can any one help
1998 GMC Sonoma 2 Dr SL Standard Cab LB
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General
My truck is not getting fire
1990 GMC Sierra 1500 C1500 SLX Extended Cab LB
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2011 GMC Yukon
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