Pontiac Problems? Ask a Mechanic for Answers ASAP
Hello Fernando, my name is***** for the question. If the engine is cranking and it is not starting then most of the time this is a security system issue. It is common for the pass lock sensor in the ignition cylinder to fail and cause this and for the body control module to cause this. If it does not crank then it may be a bad ignition switch or control module. Have these parts been changed?
If there is a bad connection this will happen. Have you noticed if the security light is on or flashing when you are trying to start it and it will not start?