Fuel tank selector valve
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Senior User
Joined: Jan 2004
Posts: 307
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From: Perry Michigan
Fuel tank selector valve
I have read a ton of posts on this part but cannot find it anywhere on my truck, do all dual tank trucks have this? I have had my bed off and replaced both fuel pumps, and traced the fuel lines all the way to the fuel rail, but haven't located this anywhere. The only thing I have found is a crappy black plastic block in the frame rail (near the trans) with return lines running into it. The only reason I care is that my tanks seem to switch only when they want to. I have replaced the fuel selector switch on the dash but the pumps dont run correctly. The rear will run, or both will run. I cant get just the front pump to run. I thought the selector valve may be the source of the problem......But I cant find it! Any help would be great.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
No you do not have a fuel selector valve on a 1991 F-series Gas truck.
Sounds like a wiring problem.
Do you have a photo of this item?
Sounds like a wiring problem.
Do you have a photo of this item?
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