Is there any wayvto bypass the fuel pump and use an inline pump

Asked by Sep 27, 2017 at 08:49 PM about the 2003 Chevrolet Silverado 1500 Long Bed 2WD

Question type: Maintenance & Repair

If your fuel pump goes out can you rebuild it

3 Answers


most in tank pumps are replace only , bummer i know,you would have more time and effort invested trying to do a inline pump if you value your time go ahead bite the bullet and replace the original pump, they are costly and a bit tough to install ,your electronics will work and you will be better in long run,


Yes anything can be done if you want to do it but what is the application. Are you swapping motors or hit ridding the one you have and need more flow or pressure. Most of the online kits I've looked into are pretty expensive. If it's for a DD not sure if that's the best option as it will require modification with the computer system


To answer your question, can it be rebuilt, the answer is no, it is a sealed unit and you just can't buy any overhaul kits for it. On a rig this old if the pump does fail it would be best to just replace the entire assembly, yes it is more expensive than just replacing just the pump itself but say after you got done replacing the pump itself and a few days down the road the gauge quit working, then you would have to do it all over again and this time the added cost of replacing the sender assembly. Now if you were to put in an inline pump you would have to remove the fuel pump assembly and take out the existing pump and add in a fuel pickup tube and strainer in the pumps place and put it back in the tank, the reason is the stock prunella pump has an internal check valve that prevents any vacuum on the fuel lines from taking up any fuel from the tank, reason is if some one cut the fuel lines they would not be able too syphon out any fuel. As fat as costs for an inline pump for your rig it would cost just about the same as the factory assembly minus all the retro work on the fuel pickup tube. So your not going to save any money by going that direction. HTH

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