Engine turns over but won't start.

[R34P3R]

2007 Classic Silverado 4.3L

 

So here's what I've done:

 

 

Listened for fuel pump - working.

 

Pulled sparkplugs - wet and dirty - cleaned.

 

Wire set - Corrosion in spark plug boot - half ass cleaned.

 

Distributor Cap - Moisture and corrosion - Cleaned like new.

 

Can't check for a spark without extra hands. Till I find some... what else can I check???

 

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[Bob D]

You're on the right track. Get a warm body to help check for spark.

Also may want to try some starter fluid spray to eliminate fuel delivery issues.

[R34P3R]

Checked for spark and all cables fired.... the sparks were weak but I'm guessing it's due to the being used battery so much.

 

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[oldmann]

You need to test the fuel line pressure. Just because it runs, doesn't mean it has adequate fuel pressure.

[SILVER SLED]

Easiest thing to do is try starting fluid to see if you are getting gas or not.

[00Silverado4x4]

You need to fix the weak spark issue. Keep the battery charged up and ensure you get good spark. That could very well be the issue.

[R34P3R]

So I got her running again. I replaced the Distributor cap and the rotor but no go. Then went ahead and replaced the plugs and wires... fired up on the first try.

 

A few of the wires were damaged when I pulled them out to replace them and also the plugs were dirty af again.

 

I don't like the gunk that I saw on the plugs when I pulled them out. What can I do to clean out the cylinders???

 

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