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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: 7 months ago.Category: Chevy
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Answered in 9 minutes by:
10/5/2017
Chevy Mechanic: Mike S., Chevy Mechanic replied 7 months ago
Mike S.
Mike S., Chevy Mechanic
Category: Chevy
Satisfied Customers: 8,016
Experience: ASE Certified Master Technician
Verified

Hi, I am Mike, welcome. I'm reviewing your question.

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Chevy Mechanic: Mike S., Chevy Mechanic replied 7 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 7 months ago

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

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Chevy Mechanic: Mike S., Chevy Mechanic replied 7 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 7 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 7 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 7 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 7 months ago
the module is getting power when the key is on microwave the red wire distributor has power also
Customer reply replied 7 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 7 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 7 months ago
Give me a few minutes I have to go back to the truck
Chevy Mechanic: Mike S., Chevy Mechanic replied 7 months ago

ok

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Customer reply replied 7 months ago
no it dont start
Chevy Mechanic: Mike S., Chevy Mechanic replied 7 months ago

Ok, proceed to step 5.

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Chevy Mechanic: Mike S., Chevy Mechanic replied 7 months ago

How are you making out with that troubleshooting chart?

Did you find the problem yet?

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