I have a 99 buick century. It's a 3.1L v6 and I just change the headgasket on the car. After I finished putting everything back together, the car does not start. It has spark and fuel, and it sounds like it wants to crank over but it won't start. If anyone can lend me a helping hand and let me know what might be wrong. Please let me know. Any help would help. Thanks to all.

did you check for spark in all 3 front cylinders?


I'd get a compression test on all 6 cylinders. And if that checks out, check the fuel pressure.