Does not crank or start

2008 PONTIAC GRAND PRIX
130,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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TLALONDE
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Car does not crank at all, fuel pump is not activating. Changed the battery and the starter.
Jul 21, 2018 at 1:22 PM
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STRAILER
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Can I ask a couple of quarions? First do you have any lights at all, headlights? If so is the security light flashing when you crank the engine over?

Here is the starter wiring so we can see how the system works there is a crank relay #48 that needs to be checked:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
Jul 23, 2018 at 10:51 AM