Car was running good just shut down

2008 BUICK LUCERNE
175,000 MILES
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JAMES MERRITT
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My car will not take a fuse, try to put one in and it blows automatically. I unplugged the fuel pump and ignition module and still hot. What could it be?
Aug 14, 2018 at 7:57 AM
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ASEMASTER6371
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Good morning.

What is the fuse number so I can look up what it controls?

Can you verify the engine size?

Roy

https://www.2carpros.com/articles/how-to-check-wiring
Aug 14, 2018 at 8:17 AM
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JAMES MERRITT
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Fuse number 1 engine is 3.8.
Aug 14, 2018 at 8:57 AM
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JAMES MERRITT
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One side of the fuse slot is hot.

Aug 14, 2018 at 9:01 AM
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ASEMASTER6371
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Pull out the fuel pump relay and see if it still blows. Fuse 1 controls the fuel pump.

Roy
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Aug 14, 2018 at 9:10 AM
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JAMES MERRITT
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When I pull the fuel pump relay no fire goes to fuse number 1.
Aug 14, 2018 at 9:14 AM
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ASEMASTER6371
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Okay, from there on, the only thing is the wiring to the fuel pump.

Remove the connector at the fuel pump and see if the fuse still fails. If it does, then you have a wiring issue between the fuse block and the fuel pump.

If it does not fail, you need a fuel pump.

Roy
Aug 14, 2018 at 10:33 AM
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JAMES MERRITT
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I already have the fuel pump unplugged and it still blows fuse. I will check the wires from fuse box to fuel pump.
Aug 14, 2018 at 10:36 AM
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ASEMASTER6371
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Okay.
Aug 14, 2018 at 10:43 AM
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JAMES MERRITT
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Thank you so much.
Aug 14, 2018 at 10:47 AM
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ASEMASTER6371
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You are welcome.

Keep us updated.

Roy
Aug 14, 2018 at 12:13 PM