Magic Gas Tank (Not Your Average Slow Filling Thread!)

[WarWobble]

You Jeep is 21 years old what caused the defect to appear? Take the filler neck out and inspect it. Blow out the vent. I was in the auto business for over 30 years. I think the only filler neck I ever replaced as because it had a plastic noozle restrictor that got broken by someone shoving a nozzle in it.

Presumably installing the TRQ aftermarket filler neck immediately preceding the symptoms would have caused the defect to appear in my Jeep. Do you mean how would that happen on TRQ's assembly line? That I'm not sure of.

Since I am of course going to try blowing some air through the vent line the next time I work on my Jeep, I will blow it out an additional time for every comment reminding me to blow out the vent line.

 

[TimV]

Hey, you should try blowing out the vent line.

 

[WarWobble]

The results are in! We did it!

I blew compressed air through the vent tube of the aftermarket TRQ filler neck and onto my finger to find that it wasn't blocked. The flow of air felt strong, and no foreign objects came out.

The used MOPAR neck arrived in great condition just in time for a Sunday install.

Which of these looks like it will give you a smooth pour, and which one looks like it will give you a mug full of foam? Which tube was desgined by a team of engineers for the purpose of allowing fluid to flow as smoothly as possible through it, and which one was designed by a team of managers for the purpose of allowing profit to flow as smoothly as possible into their pockets from cut manufacturing costs?

Add filler neck to the long list of parts that should never be aftermarket on a TJ! It's not just a tube... it's a tube that must be shaped just right.

Thanks to everyone who got me thinking about my filler neck!

I'll have to drop my tank one more time anyway to re-install my splashback valve (it was innocent in all this). I'm not sure if I should try to put the other two top check valves back together... I thought I was pretty rough with them, but I don't actually see anything broken on the plastic parts I took out. I guess it depends if they are necessary to prevent splashback.

 

[WarWobble]

A final post for closure.

As you may recall, I had removed the splashback valve and gutted the two check valves in my tank in a desperate act of troubleshooting. I took my tank down again one last time after the slow filling problem was solved by installing a MOPAR filler neck because I still needed to correct the splashback problem that I had created.

All those plastic pieces and springs I took out are all technically part of the gas tank and not sold separately. I've found that they can all be removed with a small hook tool and reassembled successfully... no splashback and no EVAP codes. Maybe this information can help someone who thinks they have to replace their tank due to a venting problem.

I submitted my review of the TRQ filler neck to Amazon and it is still under review:

"TRQ can't even manufacture a tube right.

I set out to replace three heavily rusted fuel system components on my 03 Jeep Wrangler 4.0: the fuel tank skid plate, the straps, and the filler neck. Once everything was reassembled, I could only get the gas pump nozzle to trickle the fuel in at a very slow rate or else the nozzle would shut off.

Thinking that I had done something wrong over the course of the project, I devoted several weekends to removing and reinstalling my gas tank and troubleshooting the problem. I did not suspect that TRQ's metal tube was so poorly made that you cannot actually pump gas though it.

When I swapped in a used MOPAR filler neck, the problem was fixed.
When you compare the TRQ and MOPAR filler necks side by side, it is easy to see how TRQ cut manufacturing costs at the expense of the product actually working. The crude, welded, angular taper of the TRQ tube splashes fuel back into the venturi opening, causing the pump to shut off.

The overall rating of this defective product will never reflect it's quality because 140 different parts are sold on this same page as different colors of the same product. This is how companies defeat the Amazon review system and manage to hide their defective products amongst many other different products that may actually work. This is much easier and cheaper than correcting flaws in a defective product.

The product is past it's return window, so I ran it over with a 33” tire and threw it in a scrap heap. I don't even care about the money. I want all my time back... the weekends spent troubleshooting and thinking that I had done something wrong and damaged my TJ's fuel system.

I hate TRQ."

 

[mrblaine]

A final post for closure.

As you may recall, I had removed the splashback valve and gutted the two check valves in my tank in a desperate act of troubleshooting. I took my tank down again one last time after the slow filling problem was solved by installing a MOPAR filler neck because I still needed to correct the splashback problem that I had created.

All those plastic pieces and springs I took out are all technically part of the gas tank and not sold separately. I've found that they can all be removed with a small hook tool and reassembled successfully... no splashback and no EVAP codes. Maybe this information can help someone who thinks they have to replace their tank due to a venting problem.

I submitted my review of the TRQ filler neck to Amazon and it is still under review:

"TRQ can't even manufacture a tube right.

I set out to replace three heavily rusted fuel system components on my 03 Jeep Wrangler 4.0: the fuel tank skid plate, the straps, and the filler neck. Once everything was reassembled, I could only get the gas pump nozzle to trickle the fuel in at a very slow rate or else the nozzle would shut off.

Thinking that I had done something wrong over the course of the project, I devoted several weekends to removing and reinstalling my gas tank and troubleshooting the problem. I did not suspect that TRQ's metal tube was so poorly made that you cannot actually pump gas though it.

When I swapped in a used MOPAR filler neck, the problem was fixed.
When you compare the TRQ and MOPAR filler necks side by side, it is easy to see how TRQ cut manufacturing costs at the expense of the product actually working. The crude, welded, angular taper of the TRQ tube splashes fuel back into the venturi opening, causing the pump to shut off.

The overall rating of this defective product will never reflect it's quality because 140 different parts are sold on this same page as different colors of the same product. This is how companies defeat the Amazon review system and manage to hide their defective products amongst many other different products that may actually work. This is much easier and cheaper than correcting flaws in a defective product.

The product is past it's return window, so I ran it over with a 33” tire and threw it in a scrap heap. I don't even care about the money. I want all my time back... the weekends spent troubleshooting and thinking that I had done something wrong and damaged my TJ's fuel system.

I hate TRQ."

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Not in any way trying to diminish your dissatisfaction with them but I've used a ton of TRQ parts and have yet to be disappointed by any of them.

I have however, been sorely disappointed by Dorman of late. Trying to fit up some new half door handles, the pair I bought as well as the single Dorman were identical right down to the ill fitting lock rod retainer. Considerable difference in price as well. The Dorman part went right back.