Dual Tank Switch

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Jun 29, 2011 | 07:43 AM

blloyd

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Tuned

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From: Tulsa, Oklahoma

Dual Tank Switch

My 87 F-150 has dual tanks with the black plastic switch, but I cannot tell which is the front and rear tank to know where to fuel up.
Can someone help me ?

Jun 29, 2011 | 08:02 AM

subford

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From: Easton,Ks

The fuel door that is closest to the front of the truck goes to the front tank and the fuel door for the rear tank is closest to the rear.

Jun 29, 2011 | 08:07 AM

blloyd

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From: Tulsa, Oklahoma

Thanks Subford, but I was actually talking about the toggle switch on the dash to switch tanks.
The letters have gotten worn off !

Jun 29, 2011 | 08:19 AM

subford

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From: Easton,Ks

The switch could be turned or changed but with a test light the Red wire is hot when the front tank is selected and the Brown wire with a white stripe is hot when the rear tank is selected.

The 1987 and the 1988 are wired the same:

Jun 29, 2011 | 08:21 AM

blloyd

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From: Tulsa, Oklahoma

Thanks, I will give that a try !!!

Jun 29, 2011 | 08:28 AM

subford

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From: Easton,Ks

Note that the wires are hot with the engine running or cranking.
If you just turn on the key the the wires are only hot for one second.

Jun 30, 2011 | 12:12 PM

Buzzsaw

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Joined: Jan 2005

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From: Fort Walton Beach, FL

Like someone said above the switch could have gotten turned around but my '94 F150 is Top is for Front and Bottom is for Rear. That's probably the standard way they would be installed.

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Jun 30, 2011 | 12:22 PM

subford

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From: Easton,Ks

His stile switch is a toggle switch and not the rocker switch.

It all depends on where his is mounted too. If it is mounted under the dash then when the switch is pushed forward for the front tank and pulled back for the rear tank. We have an 85 that way.

Jun 30, 2011 | 12:39 PM

#10

Jaime74656

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Joined: Apr 2011

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From: Earth

ah its one of those types, ok my bad, never had one so i don't know. I thought we were talking about the rocker style switch...

Jun 30, 2011 | 05:21 PM

#11

blloyd

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Tuned

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From: Tulsa, Oklahoma

Actually I used the toggle phrase incorrectly and it is the factory black switch !
Rocker style would be correct.
Top pushed in will be on front tank !

THANKS !!!!!