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Ask Jared D Your Own Question
Jared D
Jared D, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1863
Experience:  Shop Supervisor at County Fleet
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It's an 03 Silverado with a 6.0. I'm not getting any spark.

Customer Question

It's an 03 Silverado with a 6.0. I'm not getting any spark. It has a new crank sensor and it is getting 12 volts
JA: Have you checked all the fuses? Do you have a wiring diagram?
Customer: All fuses are good. I also have power on both sides of the fuse box
JA: What year is your Volts?
Customer: 12.5
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes I am. I have bat volt at coils
JA: Anything else you think the mechanic should know?
Customer: I was driving down the Rd when the engine stopped.
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: Chevy
Expert:  Jared D replied 1 year ago.

First, check ground G102. I've seen this ground wiggle loose or break and cause a stall and then no spark:

Expert:  Jared D replied 1 year ago.

Make sure the ground is tight and has a good connection with a clean surface on the block.

Expert:  Jared D replied 1 year ago.

Next, check for cranking RPM on a scan tool.
If none or erratic, inspect the wires and wire connector to the crank sensor behind the starter.

I'm going into a meeting here at the shop in about 30 minutes. If you need additional info after checking those items I check back in with you this evening.

Expert:  Jared D replied 1 year ago.

I wanted to see if you need any more help with this one.

Please let me know if you do.

Don't forget to rate if you no longer need assistance.