2006 gmc sierra 5.3 no spark
I have a 2006 gmc sierra 1500 with a 5.3 and it
won't start due to no spark. Have replaced crank
sensor and still no spark. Any suggestions?
More than likely the coil is bad. You can have it tested at an auto parts store. Also a bad distributor cap and rotor, or bad coil wire.
This truck has coilpacks non distributor.
No spark from any of them? The coils may not be getting any power.
The coils have good ground and 12v going to them. Kind of wondering if 12v signal from ecm triggers them? And if so it's seeming more and more like a tow bill and expensive dealer service for me.
Yes the ecm triggers the signal to the coils.
Check out the fuses first, I think there is a fuse for the ecm.
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