12v in tank fuel pump vs 24v pump - Dodge Cummins Diesel Forum
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post #1 of 6 (permalink) Old 06-01-2019, 06:43 PM Thread Starter
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12v in tank fuel pump vs 24v pump

My 1998 12v’s in tank fuel pump recently started leaking and not reading correctly and has started to break in multiple spots. So I found a pump online and I received it I realized it was the 24v model. Can I still use it or are their problems with that. Thanks everyone who can help

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post #2 of 6 (permalink) Old 06-01-2019, 07:11 PM
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A 12v doesn't have a intank fuel pump, the fuel pump is located on the side of the engine.

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post #3 of 6 (permalink) Old 06-01-2019, 08:50 PM
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Unless there was an update done to it. My 99 24v had a TSB done to it that put the fuel pump in the tank due to the one on the block being a pos.
The in tank model will work just fine unless you have fueling mods done to the engine, bigger injectors, pump turned up, etc. Than the in tank model cant sensor enough fuel to the injection pump and you'll burn it up.

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post #4 of 6 (permalink) Old 06-01-2019, 09:08 PM
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Quote:
Originally Posted by lake huron cummins View Post
Unless there was an update done to it. My 99 24v had a TSB done to it that put the fuel pump in the tank due to the one on the block being a pos.
The in tank model will work just fine unless you have fueling mods done to the engine, bigger injectors, pump turned up, etc. Than the in tank model cant sensor enough fuel to the injection pump and you'll burn it up.
Incorrect. First, there was never an update to put a 12 valve lift pump in the tank. Second, a 24 valve pump does not produce enough pressure to feed a p-pump.

Op, you need one of these. There are numerous threads about it, AND the info is in what should be the most used tool in the shop, a factory service manual.

https://www.genosgarage.com/product/...kit/fuel-pumps

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Last edited by GAmes; 06-01-2019 at 09:11 PM.
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post #5 of 6 (permalink) Old 06-01-2019, 09:35 PM
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Sounds to me what you are looking for is the sending unit

https://www.genosgarage.com/product/...ank-components

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post #6 of 6 (permalink) Old 06-01-2019, 10:49 PM
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My apologies, Truefat is correct. You don't need a lift pump, you need a tank module, maybe. Have you confirmed the module is leaking or just a fuel line? Unfortunately, from what I have read, the '96-'97 module won't work on a '98. A bit more info if you sort out the confusion.
https://www.turbodieselregister.com/...ke-fix.266579/

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