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working on an 01 with a 4.3. It wont fire. Its getting spark at the back 2 cylinders. The front ones get no spark, and the middle ones get spark only right after you let off from cranking it over. Anyone have any ideas?
 

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TCBCK
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567 Posts
01 4.3 has coils or dist.?
 

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TCBCK
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567 Posts
99-current 4.3s have distributors. It's just a 350 with 2 cylinders cut off the end.

Check the plug wires for the nonfiring cylinders, and then check the distributor and rotor.
:shake:

i would change wires cap and rotor, they all wear out anyway, and go from there

Yea id change all three...common faults after 75,000
 
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