LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

Fuel Pump Woes

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Old Oct 7, 2017 | 11:12 AM
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Fuel Pump Woes

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Last edited by johnw999; Dec 13, 2022 at 01:53 PM.
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Old Oct 7, 2017 | 11:58 AM
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Re: Fuel Pump Woes

Some things are not worth modifying because you run into trouble like this. I suggest you use drop-in parts at the fuel tank and modify your fuel gauge to work with it.
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Old Oct 7, 2017 | 01:30 PM
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Re: Fuel Pump Woes

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Last edited by johnw999; Dec 13, 2022 at 01:53 PM.
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Old Oct 7, 2017 | 03:21 PM
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Re: Fuel Pump Woes

Empty tank at 1/2 gage is how a fourth-gen sender behaves. You might want to make sure that you did not get parts mixed up or that they sent you the wrong parts.
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Old Oct 10, 2017 | 01:30 PM
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Re: Fuel Pump Woes

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Last edited by johnw999; Dec 13, 2022 at 01:53 PM.
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Old Oct 11, 2017 | 06:49 PM
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Re: Fuel Pump Woes

Supposedly GM superseded the original part at some point, I just found this out recently looking for a new bucket. Over at Rock Auto you will see that it shows "first design" and "second design" in the list. This is one of the reasons I would not shop for parts like this on eBay.
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Old Oct 12, 2017 | 11:25 AM
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Re: Fuel Pump Woes

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Last edited by johnw999; Dec 13, 2022 at 01:54 PM.
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