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Pontiac
Grand Prix
Engine
Symptoms
Not Cranking Over
Does not crank or start
TLALONDE
MEMBER
2008 PONTIAC GRAND PRIX
3.8L
6 CYL
2WD
AUTOMATIC
130,000 MILES
Car does not crank at all, fuel pump is not activating. Changed the battery and the starter.
Saturday, July 21st, 2018 AT 1:22 PM
1 Reply
KEN L
MASTER CERTIFIED MECHANIC
48,363 POSTS
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
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Monday, July 23rd, 2018 AT 10:51 AM
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