After replacing the head gaskets, engine cranks and backfires, but does not start?

2000 PONTIAC GRAND AM
125,000 MILES • 3.4L • 6 CYL • 2WD • AUTOMATIC
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NEISWONGERSHAWN
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  • 1 POST
I changed the head gaskets, cleaned the engine block pit, new oil, new oil filter, new coat, new spark plugs, new coil pack and wires, but when I go to start it, it kind of backfires first, then doesn't start... what is wrong?
Mar 13, 2023 at 5:48 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,840 POSTS
  • ASE Certified Mechanic
It could be you just need to let the engine sit for a day to allow the lifter to bleed back down to the proper adjustment but if you please shoot a quick video with your phone so I can hear the engine cranking over I can tell for sure what's going on.. You can upload it here with your response.
Mar 14, 2023 at 10:54 AM
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