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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

1997 7.3

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Old Feb 4, 2014 | 09:09 PM
  #1  
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alexisvfd
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From: Stanley nc
1997 7.3

I just bought a 97 ext cab 7.3. The guy told me it was a 30 gal and a 20 gal tank. But neither tank went that high. Both were on E and I filled both tanks with 24 gallons. But when I filled them up they went way past F for full. I'm just wondering if it goes way past E for empty
 
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Old Feb 4, 2014 | 09:13 PM
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My old 1997 F250 heavy duty with eight foot bed had dual 19 gallon tanks stock, how you got 24 in them is beyond me. But nice find I've been looking for a 97 F350 crew cab long bed 7.3 five speed for about four years now with no luck

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Old Feb 4, 2014 | 10:34 PM
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I have to agree with you there. I love my V10 but if there was one other truck that I would seriously consider trading, it would be a 96 or 97 OBS crewcab longbed with the 7.3. There's just something about that model truck that really appeals to me.
 
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Old Feb 5, 2014 | 03:51 AM
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The good thing about having two tanks as long as the selector and all works you can run the tank completely dry and find out without being stranded.
 
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Old Feb 5, 2014 | 06:43 AM
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alexisvfd
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From: Stanley nc
I was just wondering what each tank is. I didn't know it was only one tank and it's split up inside. I just bought it for 6k with 60,000 miles. Not a scratch on the truck interior is perfect. But the fuel tank is one tank. Not sure how that works
 
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Old Feb 5, 2014 | 08:06 AM
  #6  
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Hi alexisvfd, I'm going to move this into the forum for the '87-'96 trucks. The Super Duty was introduced for the '99 model year, and they are totally different from your truck, so we wouldn't be the best ones to ask.
 
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Old Feb 5, 2014 | 01:22 PM
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your truck came with twin 19 gallon tanks.
some will say 18 and 19, others will say 18 and 20.
but the easiest way to go is just call them both 19 gallon tanks.
there is aftermarket rear tanks available for the bronco that fit in these trucks that go all the way up to 33 gallons, but i really doubt you have one of them.

as for the fuel gauge, they will sometimes go past the full mark when topped off.
i would not let it go below 1/4 tank, these trucks are known for cracking the pickup tube at around the 1/4 tank mark. then when you get to the level of the crack in the pickup tube, you will suck air and "run out of fuel"
 
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Old Feb 5, 2014 | 04:52 PM
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Originally Posted by 05F250DSL
The good thing about having two tanks as long as the selector and all works you can run the tank completely dry and find out without being stranded.
You don't want to run a diesel dry if you can avoid it. Some will pick the fuel back up and go on with no problem. Others will be a real bear to get primed again. I agree with the 1/4 tank rule.
 
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