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Old 03-01-2010, 11:49 AM
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bypass fuel tank selector valve?

Is is possible to bypass or remove the ftsv? I will only be using my front tank, and not my rear tank at all. Someday way off in the future I may add a larger second tank in the rear, but until then, I really have no use for it. Suggestions?
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Old 03-01-2010, 12:16 PM
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Fuel Tank Selector Valve

No problem.

Just connect the feed and return to/from the engine to the feed and return to/from the Front tank. Two short fuel hoses and a few hose clamps should do the trick, only problem is you will have to cut all the connectors so putting the selector valve back later would be a pain to do. Maybe cut the lines a few inches away from the switch so you can splice them back together later.

There is very little pressure/vacuum on the return/feed lines (fuel pump is located at the engine). Keep your switch set to the front tank so your dash fuel gauge keeps working with the signal from the front tank.

Is your selector switch leaking? If not why not just leave everything and keep it set to the front tank?

Good luck,

Sebastian.
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Old 03-01-2010, 02:10 PM
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ok, sounds easy enough. No, it's not leaking, I just have never had it switched to the rear tank and was trying to prevent any possible issues by doing so. Once I get everything situated, I will be the only one driving my truck, so just leaving things as they are and leaving the ftsv set to the front tank may be the smartest way to go. Thanks for the input
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Old 03-01-2010, 02:15 PM
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Don't switch it

I will be the only one driving my truck, so just leaving things as they are and leaving the ftsv set to the front tank may be the smartest way to go. Thanks for the input[/quote]


If you have not used the rear tank in a long time you could open up a mess of trouble if you did use the switch. It may get stuck when you try to switch it and then you got a real problem not being able to get it back.

Leaving things alone might be the best thing here.

I always switch my tanks frequently to prevent the switch from fouling/sticking. Done that on both my trucks for almost 20 years, never had a problem.

Seb...
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Old 12-11-2014, 03:29 PM
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What does the fuel selector valve act like when it goes out? Does it allow air from the return to enter the intake? Does it make my fuel gauge not work correctly?
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Old 12-11-2014, 03:43 PM
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Fuel Selector Valve failure

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Originally Posted by 86gary View Post
What does the fuel selector valve act like when it goes out? Does it allow air from the return to enter the intake? Does it make my fuel gauge not work correctly?

I never had one fail so don't know what the symtoms might be.

My rear tank gauge has been acting up recently on my 91 F350. The needle starts to swing widly and show F as the tank goes below an 1/4 of a Tank. Eventually it goes to E The sending unit must be shorting out once it reaches the bottom of the tank. Front tank is ok so it has to be the sender unit in the tank. Oh well, a project for another day, I hate pulling tanks...

Seb....
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Old 12-11-2014, 06:49 PM
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Originally Posted by 86gary View Post
What does the fuel selector valve act like when it goes out? Does it allow air from the return to enter the intake? Does it make my fuel gauge not work correctly?
some fuel tank selector issues could cause symptoms like;
not switching tanks.
switching tanks but fuel gauge reading incorrect tank.
air intrusion/rough running.
no fuel gauge readings.
semi working - but fuel returns to opposite tank that you have selected.
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Old 12-11-2014, 07:40 PM
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that sounds like it. I will swap it out with my parts truck and let y'all know if it works
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Old 12-11-2014, 07:40 PM
 
 
 
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