garrett6410 Posted May 30, 2023 Share Posted May 30, 2023 Ive had issues since ive gotten this new gas tank is there something I'm over looking it only holds 3/4 of a tank but if i force it by force it i mesn dtsnd there for hourd it will show s full tank is it a evap problem its got new vent valves and grommets pluse a new pump and tank Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 30, 2023 Share Posted May 30, 2023 Did you get the right tank? There are two tank options for the XJ. A 20 gallon and I think a 13 or 15. I don’t recall. If you got the lesser, you’ll only be able to fill it to 3/4 like you currently are. Link to comment Share on other sites More sharing options...
garrett6410 Posted May 30, 2023 Author Share Posted May 30, 2023 9 hours ago, eaglescout526 said: Did you get the right tank? There are two tank options for the XJ. A 20 gallon and I think a 13 or 15. I don’t recall. If you got the lesser, you’ll only be able to fill it to 3/4 like you currently are. I'm pretty sure i got the 20 because ive seen it fill up when i had a vent valve leak other than that idk Link to comment Share on other sites More sharing options...
eaglescout526 Posted May 30, 2023 Share Posted May 30, 2023 I would double check what you ordered just in case. Link to comment Share on other sites More sharing options...
garrett6410 Posted June 1, 2023 Author Share Posted June 1, 2023 On 5/30/2023 at 10:35 AM, eaglescout526 said: I would double check what you ordered just in case. I gotcha if it is a 20 what would i check maybe a bad charcoal canister? Link to comment Share on other sites More sharing options...
eaglescout526 Posted June 1, 2023 Share Posted June 1, 2023 None of the evap system would stop the tank from filling to capacity unless it’s really that pressurized but even when filling all the pressure is released to accept more gas into the tank. Now there is another issue I thought of, there was a member on here a while back who had an issue like this and they found the float on the sending unit lost is buoyancy and stopped floating above 3/4 of a tank. This is a possible problem you could be having. Link to comment Share on other sites More sharing options...
garrett6410 Posted June 1, 2023 Author Share Posted June 1, 2023 8 hours ago, eaglescout526 said: None of the evap system would stop the tank from filling to capacity unless it’s really that pressurized but even when filling all the pressure is released to accept more gas into the tank. Now there is another issue I thought of, there was a member on here a while back who had an issue like this and they found the float on the sending unit lost is buoyancy and stopped floating above 3/4 of a tank. This is a possible problem you could be having. I gotcha this one is weird to me i gotta ask my mechanic what kind of gas tank he installed (got it installed as a gift) because it looks the same as my other jeeps gas tank but not to sure. Ive seen it hold 16 gallons before and it put it all the way at full. the fuel pump is brand new i got the whole sending unit not just the pump and its a delphi but now its hard to make it hold that extra quarter of a tank and when it does start to fill up when it gets to about that 1/2 it struggles to hold anymore past that point its like air is trapped in the tank and won't escape because i can rock the jeep a little and it'll hold more Link to comment Share on other sites More sharing options...
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