GM Repair Problems? Ask GM Repair Expert Now.
I am sorry your having this problem
replacing the distributor and crank sensor it made no difference at all ? any better or worse ?
when these kick back with a new distributor in it with a good bottom gear on it
to correct this issue as it seems its changing the timing too much causing this issue one of 4 things will fix it
a GM crank sensor 10456607
they sell crank sensor shims after a GM sensor is installed and it still does this shim out the sensor 1 shim if it still does this try 2 shims
if it still does this and the wiring is good to the computer then either the ignition module is causing this problem or the computer is
there is nothing else left to control the timing
the crank sensor signals the icm that signals the computer and if the icm is not sending the correct signal to the computer this can happen
try 1 then 2 shims and see how it is be sure the wiring to the crank sensor is good
here you go