Water in Fuel? - Defender Source
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  #1  
Old November 23rd, 2006, 02:36 PM
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Greg
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Water in Fuel?

Hey everyone, need some help.....

I just drove 7 hours from Virginia to upstate NY with rain the entire way. After one of the middle gas stops, in the rain, I left the gas cap off (like you have never done that). Anyway, the Defender drove fine the rest of the way after I put the cap back on (miraculously stayed on the back bumper) until I stopped at my destination, and now won't start. Turns over fine, but it seems like there is no fuel getting to the engine.

Any thoughts?

I hear the fuel pump "charge" when I turn the key, so I don't think it is that. Could it be water in the fuel system?
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  #2  
Old November 23rd, 2006, 02:42 PM
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Filler up...how much gas do you have in there?
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  #3  
Old November 23rd, 2006, 03:29 PM
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Half full? Half empty?

It's about half full. But won't start, not even a hint of a start, just turns over.

Thanks,

Greg
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  #4  
Old November 23rd, 2006, 03:38 PM
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Get some 'denatured alcohol', parts store or even a dollar store should have it. Pour some in, trying rock your truck and put in more gas...

or

Siphon all the gas out of your tank!

Good luck!
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  #5  
Old November 23rd, 2006, 05:36 PM
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Well, I put some "dry gas" in the tank, topped the tank off, and then after a few minutes of cranking, it started. I drove it around the block and all seemed okay. BUT . . . I shut it off, and it won't start again. Same situation as the beginning.

But I am noticing a "hum" that comes from behind the intake manifold when the key is turned completely off. I never noticed this before.
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  #6  
Old November 23rd, 2006, 05:38 PM
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if the hum happens right after you turn the key off and then stops shortly after, im pretty sure thats normal as mine does it as well.
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  #7  
Old November 23rd, 2006, 06:00 PM
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Water in the fuel can really screw up the performance..(I know). The dry gas is the solution, but will take driving off the tank before performance returns to normal. With the gas top off, you probably also suffered from depressurization in the gas lines..
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Old November 23rd, 2006, 06:15 PM
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Thanks for the help guys. I am going to start by replacing the fuel filter tomorrow. Then go through some checks to make sure the plugs are firing.

Should I drain the fuel tank?
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  #9  
Old November 23rd, 2006, 06:21 PM
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I don't think draining is necessary. A good dose of dry gas and driving it should do it. I would replace the fuel filter
after the water's ill effect has dissipated.
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  #10  
Old November 23rd, 2006, 06:34 PM
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The problem is that it won't start again. I will try again in the morning and if it starts, I am going to drive the gas out of it. Oh joy!
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  #11  
Old November 23rd, 2006, 06:56 PM
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You could have another water problem with electrics?. Usually water in the system will make the engine run very rough.
If it started last time but ran smooth, and now it's not starting..and it's still raining..
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  #12  
Old November 24th, 2006, 07:22 AM
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So, the drama continues. Truck has been out of the rain for 18 hours now. I woke up this morning and the temperature outside is 25 degrees. I walked out to the truck started right up. I let it sit running at idle for about 20 minutes. Shut it off and immediately tried to restart it, it won't start. Same turn over with no hint of starting.

Electrical? Maybe.
Fuel? Maybe not.
Boogy-man? Definitely.

Help!
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  #13  
Old November 24th, 2006, 08:38 AM
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So it's a hot start problem? starts when it's cold?. You might want to check relays going bad..ignition, fuel relays etc..
Pull your fuel pump relay and check, clean it. See if there is an improvement. If there is , replace it. Too bad I'm in NJ right now instead of home upstate..
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  #14  
Old November 24th, 2006, 09:12 AM
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Bad ignition module maybe?
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  #15  
Old November 25th, 2006, 08:30 PM
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It was the ignition module. I pulled off the module and the coil and cleaned off the connections, working perfect.

Thanks for all the help!

Greg.
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