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Disconnecting Low Pressure Fuel Hose for the spark plug

Snowy

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https://www.therangerstation.com/ra...ost-ignition-coil-spark-plug-removal-install/

I am having an issue with #4 misfire because of the coil wouldn't fit in properly and I have attempted many ways and I am having no luck. Unlikely first time I changed the spark plugs and it was easy and smooth, however I don't have a luck this time. I am going to try to get a tool to remove the low pressure fuel hose to have a nice access to #4 to install the coil properly and will the fuel spraying all over the engine and on me if I disconnect it? I am not sure and couldn't find any information on this. This will be my first time attempt to disconnect the fuel hose.
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Frenchy

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Best way to prevent fuel spray is to disable the fuel pump(pull the fuse) and let the truck run until is stalls. After that you should have as little fuel in the rail as possible and hopefully no pressure at all
 
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Snowy

Snowy

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Glad I didn't have to remove the fuel hose. I went different method and I got it. Next time, I'm going to remove the fuel hose to make the whole thing easier.
 

airline tech

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Sorry you are having trouble, being that I just did my preventive maintenance on my plugs (added anti-seize), this is fresh. The trick for #4 as I played with this some (per other owners having issues)
Is to tilt the COP as it is going into the well and if you are attentive to the feel as it is sliding down, if you feel resistance, you are sliding down beside the plug.
You should only feel resistance. when you are almost bottomed out, this will be the terminal end snapping onto the plug.

Note: also ensure you have connected the electrical connector back on the COP and slid the white tab back to lock

If needed:
The manual uses this procedure to relieve fuel system pressure.

Disconnect Elec connector from the Fuel Pump Driver Module and start engine and let it stall.
After stall, crank engine for 5 seconds.

The Fuel Pump Driver Module is mounted above the Spare Tire on the Frame Rail.

Alternate Ways are more difficult.
Remove Fuse 60 @ BJB (engine bay) - This fuse is located on the bottom side of the fuse box and difficult to get access to it. (Takes Longer)

Remove Fuel Pump Relay - Located in the BJB (engine bay), although located on top and easy access, the relays on this can be a pain to get out, they are tight connections and possible damage to the relay contacts is possible.
If very careful they will come out, but I would go for the manuals procedure and not risk it.

Once pressure is relieved, then use the Fuel Line Disconnect tool (spring Lock-tool) on the line above the COP.
 

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Cool, you posted as I was typing.
Glad you got it.
 

DukeCanBuildit

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