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Fuel tank rollover valve

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Old Dec 8, 2011 | 08:17 PM
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Default Fuel tank rollover valve

Can this be removed/replaced on the 2002 Dakota? Can it be resealed?
 
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Old Dec 8, 2011 | 10:31 PM
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Default I would not change a thing

I think screwing with the gas tank is not a good idea except to fix it to what it should be stock setup.

Dont play with fire you just may get burned
 
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Old Dec 9, 2011 | 09:36 AM
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This is why I ask:
 

Last edited by New 2 Dodge; Sep 25, 2012 at 01:45 PM.
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Old Dec 9, 2011 | 11:17 AM
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I'm not sure on a 2002, but in 2000 and 2001 you had to replace the tank as they're integral.

That sure looks sealed to me. How about just picking up another tank from the boneyard?
 
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Old Dec 9, 2011 | 01:18 PM
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The FSM shows it as non servicable - but then again they say the same about balljoints and control arm bushings. I think I am going to try to drop the tank this weekend and see if I can find out for sure if there is a leak. Maybe some epoxy around the area? Kind of nervous about junkyard tanks - they could have issues too. But the more I think about what's going on with my truck - the more this seems to be my issue.
- Fuel Pressure drop after sitting for a while
- Evap leak
- Low mpg
 
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Old Dec 9, 2011 | 05:10 PM
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Originally Posted by New 2 Dodge
But the more I think about what's going on with my truck - the more this seems to be my issue.
- Fuel Pressure drop after sitting for a while
- Evap leak
- Low mpg

According to the FSM the fuel pressure drop to 0 is normal on a cold vehicle. Once you turn the key the system pressurizes.

The evap leak, could be cracked lines.

Low MPG, any codes? How are your 02 sensors? How many miles?
 
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Old Dec 9, 2011 | 07:45 PM
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I am thinking that if there is a leak with the gas tank that it may be the pump may be sucking air when it is sending fuel to the injectors

I have replaced just about every hose on the evap system

I am getting about 10mpg - O2 sensors are both new.

110,000 miles
 
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Old Dec 9, 2011 | 08:13 PM
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What codes are you showing?

I'd be looking at the MAP sensor next.
 
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Old Dec 9, 2011 | 09:47 PM
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Originally Posted by 00DakDan
What codes are you showing?

I'd be looking at the MAP sensor next.
P0456 small evap leak

Also, I forgot to mention I have a strong gas smell in the tank area
 
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Old Dec 9, 2011 | 09:59 PM
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I have the 456 code. I have for 2 years now. I know on the older dakotas you could remove the roll over valve. Im sure you can on these too. Worst thats gonna happen is your gonna break it. I dont know if you take the fuel pump out can you reach it? That might help you in removing it.
 
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