Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
when this stalls and will not start with the key ON is the check engine light lit up in the dash ?
and it will physically crank over and just not fire up when this happens ?
when it will not start is there spark at the spark plug wires when cranking it over ?
when it will not start will it run on starting fluid ?
will it not start now ?
if so with spark at the spark plugs and compression will not come and go can you see if it will run on starting fluid or see what the fuel pressure is reading key ON engine OFF when it will not start ?
ok 60 PSI and holds key ON engine OFF ?
if so see if it will run on starting fluid
if it will not run on starting fluid then this issue has to be a spark control or spark at the wrong time type of issue usually
which usually the next step is a new cap and rotor and if it still does not start try a new GM crank sensor