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I have a 2004 chevy silerado 4.3 engine that doesn't spark…

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I have a 2004 chevy...
I have a 2004 chevy silerado 4.3 engine that doesn't spark at the ign coil.
Submitted: 10 months ago.Category: Chevy
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Answered in 9 minutes by:
10/5/2017
Chevy Mechanic: Mike S., Chevy Mechanic replied 10 months ago
Mike S.
Mike S., Chevy Mechanic
Category: Chevy
Satisfied Customers: 8,152
Experience: ASE Certified Master Technician
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Hi, I am Mike, welcome. I'm reviewing your question.

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Chevy Mechanic: Mike S., Chevy Mechanic replied 10 months ago

Do you have battery voltage (12 volts) at the pink wire of the ignition coil with the key on both run and start?

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Chevy Mechanic: Mike S., Chevy Mechanic replied 10 months ago

Also to the pink wire at ignition control module, too?

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Chevy Mechanic: Mike S., Chevy Mechanic replied 10 months ago

If yes to both, disconnect the camshaft position sensor connector and crank the engine and see if the engine starts now.

If not, follow the step 5 in this trouble shooting chart but if it does start skip to step 26.

Did that answer your question? If so, kindly leave me a positive rating, so I get credit. After all, you have already made the deposit.
If you don't, the deposit you made will just sit there and I won't get my share of it.

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Customer reply replied 10 months ago
both wires at coil lights up when the key is on. I replaced crank sensor, new module, distributor, coil,
Chevy Mechanic: Mike S., Chevy Mechanic replied 10 months ago

disconnect the camshaft position sensor connector and crank the engine and see if the engine starts now

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Chevy Mechanic: Mike S., Chevy Mechanic replied 10 months ago

Plus you never mentioned the pink wire at the module if it has power or not.

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Customer reply replied 10 months ago
the module is getting power when the key is on microwave the red wire distributor has power also
Customer reply replied 10 months ago
the module has power when the key is on the distributor has power when the key is on also
Chevy Mechanic: Mike S., Chevy Mechanic replied 10 months ago

disconnect the camshaft position sensor connector and crank the engine and see if the engine starts now

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Customer reply replied 10 months ago
Give me a few minutes I have to go back to the truck
Chevy Mechanic: Mike S., Chevy Mechanic replied 10 months ago

ok

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Customer reply replied 10 months ago
no it dont start
Chevy Mechanic: Mike S., Chevy Mechanic replied 10 months ago

Ok, proceed to step 5.

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Chevy Mechanic: Mike S., Chevy Mechanic replied 10 months ago

How are you making out with that troubleshooting chart?

Did you find the problem yet?

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