Crank no start

Tiny
FONZE1969
  • MEMBER
  • 2002 CHEVROLET 2500
  • 0.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 205,848 MILES
Won't start on gas or ether.
New wires plugs, fuel pump filter, injectors, temperature sensor, crank sensor, fuel filter, exhaust manifold gaskets and fuel filler neck. Getting ready to replace ignition switch. Security code is voltage to high and voltage too low.
Friday, February 12th, 2021 AT 5:07 PM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Looks like you have a couple issues. Just looking at some of the C codes and a few of them are pointing to an internal failure of the Electronic Brake Control Module. Unfortunately the only fix for this is to replace it. I attached the info for this below.

However, this will not cause the engine to not start. So we need to find out if we have spark so, we need to pull a plug and hold it against the block and see if there is spark.

https://youtu.be/dCjmRL3p4Cs

As for the other codes like the ECT circuit high, that would not prevent the start either.

So we just need to rule out the basics. Sounds like you ruled out the fuel with ether but we need to check spark and then check the compression and just make sure that is okay.

https://www.2carpros.com/articles/how-to-test-engine-compression

Let's start with this info. Thanks
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Saturday, February 13th, 2021 AT 4:06 PM
Tiny
FONZE1969
  • MEMBER
  • 2 POSTS
Forgot to put in post no fuel to the spark plugs. The're dry and you can smell fuel after cranking. Fuel does come out of fuel rail just not sure on pressure. Hooked up heaver ground engine to firewall and firewall to battery when the truck was running it had barely any power when I pulled the fuel injectors out, they were full of sludge and rust. I replaced the fuel rail because the other rail had a crack in it around the fuel regulator is all rust the only thing I have not changed on the truck are the coils.
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Sunday, February 14th, 2021 AT 5:09 AM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Not sure I am following. It sounds like you are ruling out fuel but you said you had no fuel to the spark plugs. So you mean you have no spark at this point? Pull out a plug and hold it against the block then crank the engine and make sure there is a spark. If not then clearly we need to chase this down. It could be a coil issue but I would suggest we find out for sure there is no spark.
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Sunday, February 14th, 2021 AT 6:53 PM

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