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Purging 5.9 magnum fuel injectors? #2921667
05/12/21 01:34 PM
05/12/21 01:34 PM
Joined: Sep 2003
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Missouri
StrokerPost Offline OP
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Missouri
Going to be putting a 5.9 in storage indefinitely, I have experienced injectors on other engines that gum up and don't work after setting a long time, is there a way to purge the injectors before putting it away? Thanks

Re: Purging 5.9 magnum fuel injectors? [Re: StrokerPost] #2921705
05/12/21 02:42 PM
05/12/21 02:42 PM
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Posts: 10,486
Freeport IL USA
poorboy Offline
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Freeport IL USA
You can relieve the pressure from the fuel system by depressing the Schroder valve on the fuel rail (the place you would put a pressure gauge). Be aware that when you push in the pin on the valve, it will squirt some gas, have a rag ready.

Re: Purging 5.9 magnum fuel injectors? [Re: StrokerPost] #2921852
05/12/21 08:33 PM
05/12/21 08:33 PM
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in a cattle trailer down by th...
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Guitar Jones Offline
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in a cattle trailer down by th...
Injectors are pulse width modulated, if you hit them with a straight 12 volts you will burn them out pretty quick. I would remove the fuel rail and injectors and blow them out. Maybe squirt a little WD 40 in them.


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Re: Purging 5.9 magnum fuel injectors? [Re: Guitar Jones] #2921961
05/13/21 01:46 AM
05/13/21 01:46 AM
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Posts: 6,847
Missouri
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Ok, thanks guys wave

Re: Purging 5.9 magnum fuel injectors? [Re: StrokerPost] #2922089
05/13/21 12:37 PM
05/13/21 12:37 PM
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Tulsa OK
Bad340fish Offline
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If it is still in the vehicle I would pressurize the rails with shop air and crank it over with the fuel pump relay unplugged. The injectors will cycle while cranking and purge the fuel out of the rails, they should end up dry when done. You can also open them with a 9V battery and spray carb cleaner or something through them.


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Re: Purging 5.9 magnum fuel injectors? [Re: Bad340fish] #2922315
05/14/21 02:33 AM
05/14/21 02:33 AM
Joined: Sep 2003
Posts: 6,847
Missouri
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Originally Posted by Bad340fish
If it is still in the vehicle I would pressurize the rails with shop air and crank it over with the fuel pump relay unplugged. The injectors will cycle while cranking and purge the fuel out of the rails, they should end up dry when done. You can also open them with a 9V battery and spray carb cleaner or something through them.

Thanks for the additional input up







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