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Old 03-19-2014, 05:14 AM
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help with 2 Excursion problems

I have a 2002 Excursion 7.3 PSD that Iím having 2 issues with. Currently I have a fuel leak that falls to rear of the motor over transmission. From the top side there is no fuel in the valley but I canít find the leak. Is there some connection to look for under or to the rear of the turbo? Secondly the 4x4 hubs won't move from the auto to the lock position. Is this just a matter of being more forceful or is there something else going on. 4x4 won't engage and I do believe that I have a vacuum problem.
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Old 03-19-2014, 05:28 AM
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Hubs are most likely seized and the fuel leak is probably the line that goes to the back of the rh head. The clamp usually rubs a hole in it causing the leak and the fuel falls down the back of the valley.
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Old 03-19-2014, 11:22 AM
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Quote:
Originally Posted by STANGMAN893 View Post
Hubs are most likely seized and the fuel leak is probably the line that goes to the back of the rh head. The clamp usually rubs a hole in it causing the leak and the fuel falls down the back of the valley.
Here is a pic I found that shows the clamp that causes the line to leak



I looked around and here is a link to a replacement: Passenger Side Fuel Line - Riffraff Diesel Performance

Best thing to do to prevent it happening again is to wrap a piece of rubber fuel line around the hard line where it passes through the clamp.

And yeah, you need new hubs. If you suspect a vacuum issue as well, it might be a good time to just make the switch to Warn manual hubs.
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Old 03-22-2014, 11:54 AM
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Thanks for that info, i'll take a look today to see if that it is it. I take it that Warn hubs are good replacement hubs. I'm not to that up on this stuff. What a good tuner/programmer for the 7.3. I'd like to wake it up a bit.
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Old 03-22-2014, 11:55 AM
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Does that line run under the turbo mount?
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Old 03-22-2014, 04:27 PM
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As you can see in the picture, that fuel line is routed under the pedestal.
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Old 03-24-2014, 02:04 PM
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Quote:
Originally Posted by gsaltsman View Post
Thanks for that info, i'll take a look today to see if that it is it. I take it that Warn hubs are good replacement hubs. I'm not to that up on this stuff. What a good tuner/programmer for the 7.3. I'd like to wake it up a bit.
Give us a call and we can help you with your tuning questions and needs.

Quote:
Originally Posted by gsaltsman View Post
Does that line run under the turbo mount?
Yes, that is the fuel line in question. The other hard line you see in the picture that runs in front of the turbo pedestal is a hard HPX line.
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Old 03-26-2014, 11:50 AM
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where the fuel line connects to the head, can leak there too. The parker sleeves ware out. Get a "cabinet" kit from riffraff and "seal" everything up top.

check the vacuum lines at the hubs. Buddys' were rotted away. If you do go the hub route, i suggest SuperWinch

Last edited by timmyboy76; 03-26-2014 at 11:55 AM.
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