Jumping Fuel Pump

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Jun 6, 2011
Threads
61
Messages
1,224
I've searched but can't find how to jumper the fuel pump with the vehicle not running. I want to pressurize the system to check for potential fuel leaks. Thanks!
 
I assume this is for the '96LX. This is from the '95 L/C repair manual:
upload_2017-3-10_17-5-25.webp

upload_2017-3-10_17-1-51.webp
 
upload_2017-3-10_17-6-2.webp

upload_2017-3-10_17-3-15.webp
 
IMG_4511.webp
Or you can do this:
 
So I take it I have to apply power to the fuel pump connector on top of the tank directly? There's no harness or connector in the engine bay?
 
I'm starting to wonder if I should just run it for 5-10 seconds and then check for any fuel leaks.

I've replaced the charcoal canister, but still get a fuel smell after i turn off the engine. New cap too. Last time I checked the operation of the canister system per TSM it operated correctly (pulling vacuum).
 
Alright I cheated and pressurized the fuel system by just starting it up on a cold start. Sure enough injector #5 is leaking.

IMG_0290.webp
 
Here's what the leaky fuel injector looks like. Oring looks good. Anyone seen an injector leak internally? It looks like this thing is toast. It was cleaner and balanced about 5-6 years ago. Should I replace it?

IMG_0319.webp
 
Back
Top Bottom