Join Date: Mar 2010
biomed86 is offline
Re: 94 4.3 vortec cranks but wont fire...
I had similar problem on my 93 Jimmy, the problem was ignition module, I had spark, gas, but not fire.
In these models, that modul acts as crank sensor, no crank signal came to ecm, no signal from ecm to cpi !!
about $70 for that part !