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Old 11-18-2013, 15:12   #1 (permalink)
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Fuel Pump also

Hello guys and gals,
2001 Mercury Grand Marquis 4.6L vertical gas tank mounting and fuel pump pointing to rear differential or the front of vehicle.


Looks like it was the fuel pump also. Last thread here: intake manifold replacement / will not start

I drove the car fine a few weeks. Went on 12 day cruise and left car at long term parking at airport. Well, of course, my luck, car would not crank on return.

Anyway, my problem. I am trying to disconnect the fuel line at the fuel pump and gas tank. I got one quick connect line loose. The top one (fuel supply) will not disconnect for me. I have tried many times and spending way too much time on it. I am using the cheap plastic disconnect rings. They worked fine under the hood.

Any suggestions? On way to work, will be back in morning.

Thanks
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Old 11-18-2013, 17:38   #2 (permalink)
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Re: Fuel Pump also

Sometimes they can be difficult. The plastic tools actually work better for me than the expensive metal one I bought at NAPA.

Try spraying WD 40 inside the coupling. Then push the largest size tool that will fit into the coupling, while simultaneously pushing the coupling toward the tool (seems backward) until the tool seats as far down inside the coupling as possible. Then pull the lines apart, while still pushing the tool into the coupling. They WILL eventually come apart, but will also leave you talking to yourself!

Do not cut the lines, they are expensive to replace.

I hope that you enjoyed the cruise anyway. Where did you go? We are leaving Nov 30 on the Sapphire Princess for a 15 day cruise to Hawaii.
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Old 11-19-2013, 08:10   #3 (permalink)
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Re: Fuel Pump also

Bajarider, shhhhhh, don't let my wife hear cruise and Hawaii ---LOL That is her other dream cruise. Hope you have a great time.

Actually my cruise was 3 four day cruises in a row. They were musical themed cruises. The first 4 days was Lynyrd Skynyrd, the second was Alabama and the third was KISS.
It was the first cruise for us both. We had a blast. Wish I had been going on cruises much sooner and will definitely go on more as money allows.

I like the cheap plastic tools better also. I tried the more expensive metal also and came to the same conclusion as you.
Just went out and sprayed wd40 on fitting, still not wanting to come off yet. It actually looks clean and not very dirty at all even before spraying. Thought dirt, grim, etc. may be the cause. Will work on it a bit more.

Things are going as usual for me on this project also. I purchased a siphon hose thing to get gas out of tank and can't even get the little hose to enter the tank. Goes down filler neck and stops at tank no matter what i try-----LOL.

Thanks for the tips.
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Old 11-19-2013, 09:14   #4 (permalink)
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Re: Fuel Pump also

ok, just did a search and found out that there is another valve or something entering the gas tank keeping me from siphoning gas out of the tank.

Looks like I may have to get someone else to finish this job. Tried to loosen the bolts holding the gas tank straps enough to get the filler tube off, but not quiet enough clearance.

Not gonna try to lower any more without another floor jack or something to catch tank if it comes loose. Thought I could drain tank and be light enough to handle.

Will have to consider other options.
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Old 11-20-2013, 09:53   #5 (permalink)
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Re: Fuel Pump also

It seems that the fuel pumps only fail when the tanks are full, but you only need it to be about half empty to remove the pump. Also, I've never had to completely lower the tank, just loosen it a little on the pass side to run the vent lines.

That's the "roll over" valve, but it makes it impossible to siphon the tank. I wouldn't try to remove the filler.

This is dangerous, so be as careful as possible, but here is how I have changed the last two fuel pumps with almost full tanks. Raise the vehicle, of course, then loosen the lower bolts on the round pump mount just enough for the fuel to start to drip. Catch the fuel in an oil drain pan, emptying when necessary. It takes all day when you get near half, at a very slow drip rate. I DID THIS OUTSIDE WITH A FAN RUNNING A SAFE DISTANCE AWAY TO PREVENT GAS FUMES FROM BUILDING UP. BE VERY CAREFUL.

We "cruise" about twice a year, but wouldn't be able to afford it without the info I will forward to you in a PM. I also enjoy the themed cruises. The ones you went on sound like fun. NASCAR also has one, but it's usually expensive.
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Old 11-21-2013, 05:16   #6 (permalink)
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Re: Fuel Pump also

Bajariders method is as good as it gets doing it at home. And speaking of cruises we leave January 31st for a final trip with all our kids Taking them on a Disney cruise. Stopping in Nassau and Castaway Key Island. When we return from cruise spending a day or two at Universal Studios.


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Old 11-21-2013, 05:32   #7 (permalink)
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Re: Fuel Pump also

Hello r-clar:

It sounds like we need to start a "cruise club", the ocean kind, on this site. We've used RCCL and Princess, Carnival once and never again, but I've heard that Disney cruises are really nice. Have fun!
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Old 11-21-2013, 15:54   #8 (permalink)
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Re: Fuel Pump also

Thanks Bajarider and r-clar, dang too late to try this method. Did not see it until after gone too far--lol.

Ok, here is where i am at the moment. Got a few more tools. Dropped the gas tank down some and removed the fuel filler (big mistake) as the end broke off, so the tank has to come entirely out now to get the plastic end that fell back into the tank.

Siphoned the gas out as best i could. Pretty light now--only couple gallons maybe.

Oh, and the quick disconnect i was having so much trouble with --- I went and got a single tool---just a better plastic one--- and it came right off. Should have done that sooner.

Anyway, now the problem is that i see no way to disconnect the electrical connections. I loosened the pump bolts and see a connector just inside. Can't get that off at the moment. The limited workspace lying on ground under the car does not allow much movement and room to work with. May have to get better jack stands and floor jack or something to get it up higher.

I wanted to disconnect the electrical connections and get the gas tank out entirely if possible.

The gas tank cannot be dropped down any further because of the electrical wiring. It also appears it would be hard to get the fuel pump out with gas tank in place for the same reason. Is there a place further back with the wiring to disconnect so tank will drop completely out?

Any suggestions?

r-clar, I have heard the Disney cruises are great also, especially with kids. We were parked next to the Disney Dream ship in Nassau. That water slide looked like so much fun way up on top with clear tubes and all. Also, there were giant Disney characters on the back of the ship which was neat. Kinda like raised letters or 3D type on side of ship.

Bajarider--thank you so much for the site in the PM. Will definitely put it to use.
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Old 11-21-2013, 19:02   #9 (permalink)
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Re: Fuel Pump also

What electrical connection? Those are the easiest part. It's all outside the tank.
Ya we went disney because we are taking all our kids. Age range is wide so best idea we could come up with. 20,19,12. So we figured the two oldest to won't be going on many more trips with us so hope they enjoy.
Bajarider my wife and I are hoping to do an Alaskan cruise next. That looks like a relaxing trip.


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Old 11-21-2013, 19:58   #10 (permalink)
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Re: Fuel Pump also

Quote:
Originally Posted by r-clar View Post
What electrical connection? Those are the easiest part. It's all outside the tank.

The electrical wires appear to just enter the fuel pump with no way to disconnect at the pump. The harness goes from the pump up and into the frame work by the fuel lines. Looks like the run up behind the back seat.

There is a connector just inside the pump but that would do nothing to give me the slack in wiring I need to drop the tank or pull out the fuel pump.
Edit:Fuel pump electrical connection next post.
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