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Q:

Car cranks but won't start.
on 2004 Chevrolet Impala

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
The car died driving down the road. Went back later and it started and ran fine. The next day didn't start. The battery was weak so replace that. checked the charging and that is ok. Put fuel pressure gauge on. Has 53 psi with key on. The car started 2 different times after checking pressure. Now it dosen't start at all just cranks. Any idea's?
(1) Answer
Check for spark. If no spark may be ignition module or crank sensor... both common on that platform. Security light flashing with key on?