Engine Mechanical problem
1999 Pontiac Grand Am 6 cyl Front Wheel Drive Automatic 148000 miles
I just did intake gasket on car due to extream coolant leak on and into motor. I put it back together and had no start. I have spark, fuel, compression. While cranking without fuel motor spins fine. While cranking with fuel motor will spin free then hesitate then crank again. What is the possibility of timing jump? or what else could be wrong?