My car completely shuts off if I brake suddenly or make a sharp turn, it started acting up after I got an alignment, but no shop can figure it out and of course it only does it when I drive it. Sometimes when it shuts off it'll take 20 minutes to crank back up.
Shuts off on 1990 Pontiac Grand Am
by Btay11121 in Middleburg, FL on December 18, 2009
ANSWER by dandd , December 18, 2009
Most likely it is a defective (1) Ignition Module or (2) Crank sensor. I used to work at a GM Dealership and this is somewhat common. have a good Diagnostic Shop check it out, NOT a tire place.
ANSWER by nick5395 , July 18, 2013
Mines a 93 and had this issue when I first bought it, a fuel treatment when I fill up always fixes it for me.