duel tanks
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From: Juneau, ak
duel tanks
I was hoping that someone might be able to shed a little light for me. I have a 92' F-150 with the 5.8l and duel tanks. The problem that I have is that the front tank is not working. When I shift tanks the level changes, but it will start to idle ruff, and then the check engine light will come on and I won't be able to accelerate. I am not sure if it is a problem with the fuel pump, or if it could possibly be the fuel tank select valve.
Thanks for any help.
Thanks for any help.
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From: Juneau, ak
If that is the culprit, is the pump for the rear tank that same as the one for the front tank? I am going to assume that I am going to have to drop the tank to get to the pump as well.
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Likely the front fuel pump starting to go out. This is a common problem with these trucks. The pump is a "fuel module" if I remember Ford's terminology right and is located in the tank. The good news is you have another tank to run on until it's fixed...
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From: Ottawa, Ontario
Originally Posted by 86caprirs
Both pumps are different.
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From: Juneau, ak
Thanks for the knowledge. The family and I are moving from Alaska to Wisconsin in a couple of months and if I am going to drive the truck I would like to have both tanks working.
Now I just have to find the pump. We only have 3 part stores in town, and unfortunatly we can only take a boat or a plane to the next town.
Now I just have to find the pump. We only have 3 part stores in town, and unfortunatly we can only take a boat or a plane to the next town.
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Hesitation not good?
I have dual tanks and only one give fuel guage info, just kept count of miles and used it as a backup has worked well until the other day.
1996 F150 straight 6, std. transmission with +180,000 miles, kept tuned up.
Two months ago it started to hesitate or jerk “once” while driving. Similar to when having; not notice fuel levels and having to switch tanks on the move. Then yesterday it did not start until I switched tanks, then it jerked twice while driving to the store. But that was it until this morning. Similar issue, would not start until switching back to the other tank. This is going to be painful isn’t it?
Have a great week,
Morgan
1996 F150 straight 6, std. transmission with +180,000 miles, kept tuned up.
Two months ago it started to hesitate or jerk “once” while driving. Similar to when having; not notice fuel levels and having to switch tanks on the move. Then yesterday it did not start until I switched tanks, then it jerked twice while driving to the store. But that was it until this morning. Similar issue, would not start until switching back to the other tank. This is going to be painful isn’t it?
Have a great week,
Morgan
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From: Juneau, ak
I was looking around and found differant pumps. I was wondering if this is would be the right pump? ACDELCO Part # 43103 {MECHANICAL #12356976}
PUMP,FUEL 19 GALLON REAR PLASTIC TANK
PUMP,FUEL 17 OR 19 GALLON CENTER STEEL TANK
PUMP,FUEL 19 GALLON REAR PLASTIC TANK
PUMP,FUEL 17 OR 19 GALLON CENTER STEEL TANK
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From: Topsfield, MA
Originally Posted by Conanski
Actually the pump modules are the same, but the hard lines at the top may be shaped a little different. That's not an issue however as the hard line assembly unplugs from the resovoir so it can be swapped to another, and the resovoir comes apart so you could just change the actual pump and retain the original resovoir and hardline assembly.
The hardline assembly you speak of is the sending unit.
Last edited by MustangGT221; Feb 22, 2008 at 10:16 PM.
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This fuel issue is getting more confusing as time goes on. In the mornings I am having start up issues; seems to make no difference if the truck is headed uphill or downhill. I hear each pump start or kick–in when switching from one tank to another. But it takes about 12 to 15 tries to hear one of the pumps actually sucking or pumping fuel to the engine in which it then starts. I have had no problems during the day as after work or church, just in the mornings.
Being I know very little of such matters; might there be a slight leak causing fuel to run back into the tank, but then again why the problem of fuel pick in the morning?
Thank y’all for your help.
Being I know very little of such matters; might there be a slight leak causing fuel to run back into the tank, but then again why the problem of fuel pick in the morning?
Thank y’all for your help.
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From: Juneau, ak
finaly had time to replace the pump. Not too bad. Tank came out easy, pump went in easy, the only problem was the fill hose. It didn't want to stay on the tank. Once I got that taken care of it all runs like a champ. All in all it took me a little over an hour and a half to complete.
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From: Ottawa, Ontario
Originally Posted by MustangGT221
The modules are not the same front and rear. They are shaped differently and the location of the fuel pickup (where the screen is) is different.
Here are a couple pics of 2 different sender assemblys I have for parts, a '90 and '96, you can clearly see the difference in the electrical connections and hardline assemblys. These can be swapped around of course, the resovoir with it's pump that came with the '96 is currently in the rear tank of my truck, I just swapped the hardline assembly onto it and plugged it back into my tank.
