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Old 07-02-2015, 08:52 AM   #1
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Join Date: Jul 2015
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Fuel issue solved

Hi all.
I wanted to post the fuel issue I was having by gas not getting to the carb on the 454 motor.
After driving the motorhome for 15 minutes or so fuel stopped getting to the carb.
After checking the fuel pump, fuel filters, and pretty much all hoses and lines I decided to blow air through the fuel systems for both the main and aux tanks/lines.
I started with the vaper return line from the aux charcoal canister.
I disconnected the hose from the canister to the hard line. Blew air through the hard line and it seemed the air was free flowing so I figured that wasn't the issue.
I got a wild hair at that point and decided to test the charcoal canisters and found that both were plugged and not allowing the return vaper line to breath and causing vaper lock.
I left the vaper return line disconnected and went driving around to include one of the mountain passes up hill.
I didn't have any issue.
So.....check your canisters and lines.
Your problem may be just that simple.

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Old 07-06-2015, 01:35 PM   #2
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Good work! And an unusual solution I hadn't heard of before!

2004 Tiffin Allegro 27.5 ft. P32 18,000 lb GVW. 8.1 liter. Workhorse chassis built May 2002. 21,000 miles. 2012 Jeep Liberty Toad. RVi2 brake unit.
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Old 07-06-2015, 10:19 PM   #3
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Thank you.
I should have posted how I blew out the system as well.
A very contoled release of air, only enough to hear (by a second set of ears from my buddy) air in the tanks or blow out the system.
I added air gun and hose to my portable air tank.
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Old 07-06-2015, 10:29 PM   #4
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Nice job, great when you can figure out what is causing the problems.
2014 Itasca Sunova 33C towing a Jeep TJ Wrangler
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Old 07-07-2015, 04:45 AM   #5
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Always a good thing when your effort pays off. Nice job.
Bruce & Nancy
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