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L83 How to Relieve Low Side Fuel Pressure

L83 How to Relieve Low Side Fuel Pressure

Postby Closer_2001 [OP] » Nov 26 2016, 5:35pm

Dumb question, but pulled fuel pump relay and Fuel Pump Fuse...truck runs.

Installing E85 sensor...

Thanks
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Re: L83 How to Relieve Low Side Fuel Pressure

Postby ASTE25 » Nov 27 2016, 11:33am

I usually just use a rag and small screwdriver to push the middle part of the test port down to let the pressure off.
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Re: L83 How to Relieve Low Side Fuel Pressure

Postby wildchevy » Nov 27 2016, 1:37pm

^^ +1
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Re: L83 How to Relieve Low Side Fuel Pressure

Postby 19trax95 » Nov 27 2016, 2:55pm

You pulled the relay for the fuel pump and the truck still runs?

But I normally just press the little valve in the test port and let the pressure relieve. Just cover it with a rag or there's a chance you'll get sprayed with fuel.

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Re: L83 How to Relieve Low Side Fuel Pressure

Postby Closer_2001 [OP] » Dec 12 2016, 1:27am

Yeah - totally bizarre. I pulled both the fuse and the relay under the hood that says "Fuel Pump" and the thing starts and idles. For a minute or so...didn't want it to get hot.

Nevertheless, went ahead and just cracked the main line and let it drain. No big deal.
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