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2003 Park Avenue fuel pump circuit schematic

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Old Nov 2, 2025 | 08:21 PM
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Default 2003 Park Avenue fuel pump circuit schematic

Hello!
Would anyone out there have an '03 factory manual they could snap a picture of and send? The ones I've found on the net are unmarked as to the year and source, and don't match what I have in the car.
It'* a long story...
Thanks in advance!

Phil
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Old Nov 3, 2025 | 01:04 AM
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Have you checked here?: https://charm.li/Buick/2003/Park%20A...0SC%20VIN%201/
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Old Nov 3, 2025 | 02:02 AM
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Yes I have.
Problem solved!
Thank you!
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Old Nov 3, 2025 | 11:17 PM
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Cool, you're welcome!

I think some of us are going to be curious: What was the issue and what actually fixed it?
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Old Nov 4, 2025 | 08:59 AM
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Wire #85 (relay coil to ground) had no wire in plug cavity. How was the coil to be grounded if there was no wire? Beats me.
I plugged the relay in and everything works as should. My question still is, how is the relay coil grounded without any wire going to ground?
All the schematics I found show a ground wire.
Thanks
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Old Nov 4, 2025 | 10:44 PM
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Like no contact in the block where the relay'* ground pin connects?
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Old Nov 4, 2025 | 11:04 PM
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Someone had added a wire from the ground pin on the relay itself to the chassis ground. That'* when I started looking for a wire that could have worked its way out of the male plug. There was no loose wire, and the cavity in the plug for the ground wire was empty. I plugged in a new relay, removed the added wire, and the car fired right up and so far the fuel pump is working. On to bigger and better things!
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Old Nov 4, 2025 | 11:36 PM
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Cool!!
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