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I'm attempting to change the fuel filter on my F-150, and am having a very difficult time! This is my first attempt at the filter change and am clueless. I purchased the tool to remove the lines from the filter but I must be doing something wrong. I take off the clips, and place the tool around the line at the filter and attempt to slide the tool into the connection...but it wont disconnect. Is there a trick to it? I've tried twisting, pushing, pulling...everything and no luck. How's it done???
First let me say Welcome to FTE! You will find lots of great information here, and friendly people. Now, on to you question:
If you can see into the connector, check if the spring is a coil type, or a finger-type. I have had trouble with the finger-type in the past, where on of the fingers drops into the gap between the tool halves, and prevents removal. If this is the case, use the next size up tool. I use the Leslie high pressure line removal tools, available at Napa, and possibly at Motorhaven.
Thanks for the info... I'm gonna give it another attempt tonight. My gas mileage is HORRIBLE, thus the attempt to change the filter. I've done the typical tune up with new wires/plugs/cap & rotor. How many O2 sensors are there on a 4.9 engine and would you recommend a change in them to improve mileage?
On your truck, it depends on the control system. If it is OBDII, or california emissions, it will have three. If it is mass air, it may have two. If it is the speed/density system (no mass air meter on airbox), it should only have one.
I have run into exactly the same situation on my '94. New wires, cap, rotor, plugs, O2 sensor, and when it came to the fuel filter, it was something like mission impossible!
If the fingers have bent down at the far tips, you'll have to either just rip the line off the filter and replace the spring (cheap at NAPA or others) or dig the spring out with a hook probe and straighten it with pliers. I've done both.
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