2006 gmc sierra 5.3 no spark

20

Asked by Mar 09, 2017 at 11:20 AM about the 2006 GMC Sierra 1500 SLE1 Crew Cab 4WD 5.8 ft. SB

Question type: Maintenance & Repair

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?

6 Answers

85,345

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.

1 people found this helpful.
20

This truck has coilpacks non distributor.

1 people found this helpful.
85,345

No spark from any of them? The coils may not be getting any power.

20

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.

1 people found this helpful.
85,345

Yes the ecm triggers the signal to the coils.

1 people found this helpful.
85,345

Check out the fuses first, I think there is a fuse for the ecm.

1 people found this helpful.

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