Engine/Transmission (1998.5 - 2002) Fuel tank rollover valve P/N's

[fmj]

Fuel tank is leaking at the rollover valve. Not sure if its the rollover valve or the grommet. I went to the dealer and ordered parts, and these are the p/n's that I got:

Rollover Valve p/n 52127666

Rollover Valve grommet p/n 4616244



Something is wrong with one of these numbers as the grommet is loose on the valve. Loose enough that even with some compression it won't seal. The dealer can find the part no. for the valve, and says its right for a diesel, but cannot find a part number for the grommet in exploded view. He THINKS it might be for the gas version. He says that when I yank out the old one bring in the part numbers. That will keep me down for a couple of days and I want the correct stuff before I start this. Does anyone know the correct part numbers for the 2001, short bed tank (35gal).



Also the rollover valve thats currently in the tank has a barbed fitting, but nothing going to it, no hose. Shouldn't there be a hose back to the tank or filler hose? The service manual doesn't show anything. Any help will be appreciated.



OOPS, this should have been in the non eng trans forum. Sorry.

 

[Thomas]

... Does anyone know the correct part numbers for the 2001, short bed tank (35gal)...

The part numbers look good to me. Here is a page from the model year 2000 parts catalog.

-

The parts catalog does not specifically state that the grommet is used with the diesel Rams. I think this is just an incomplete entry (quite common) in the parts catalog. Drop the grommet part number (remove the space) into the parts search here: http://allchryslerparts.com/. I think you'll find it's used with gas & diesel.

The tank on your shortbed Cummins/Ram is 34 gallons.

... Also the rollover valve thats currently in the tank has a barbed fitting, but nothing going to it, no hose. Shouldn't there be a hose back to the tank or filler hose?...

The rollover valve is open to the atmosphere on your Cummins/Ram unless the truck is upside-down. There is no hose from the factory on that barbed fitting. If plumbed as you suggest, the tank could be pressurized or you could pull a vacuum on it.

 

[fmj]

Thomas, thanks for the reply. It looks like the part numbers are correct as you say. Great site, will save to favorites. I can verify the grommet as it has the 4616244 part number on the face. I'm thinking that the rollover valve is wrong. The part number on it is not 52127666, but a 4753262? It looks like I need to look into this some more. That 4xxxxxx part number doesn't come up. I seem to remember that there is another rollover valve on engine somewhere. I might have to pull the valve out to see. I'll get under truck tomorrow.



Also thanks for the info on hose. I knew the valve vented out, and thought the tapping into the fill vent hose would work. Thanks for saving me starting a bad idea .

 

[Thomas]

... I'm thinking that the rollover valve is wrong. The part number on it is not 52127666, but a 4753262? It looks like I need to look into this some more...

Start your look here: http://patft. uspto.gov/netacgi/nph-Parser?u=%2Fnetahtml%2Fsrchnum.htm&Sect1=PTO1&Sect2=HITOFF&p=1&r=1&l=50&f=G&d=PALL&s1=4753262. PN. &OS=PN/4753262&RS=PN/4753262.

I think you'll find out that the 4,753,262 is not a part number.

 

[fmj]

Thomas, yep thats what came back before, but its the only no. on the new rollover valve. I guess thats why I'll have to climb under truck and pull out valve and grommet. The part numbers that I showed in origional post are the correct ones according to the search on the site you helped me with. Again, thanks for sending me to that site, I'll be able to use it in the future to check parts. I'll come back when I pull the valve out.

 

[Cooker]

I found this post using the seach function here on the TDR

It is a very easy repair, maybe 10 min tops, and the part numbers are: Rollover valve #52127666 and Gasket #4002149 Parts totaled $23

This was an older post to maybe the PN's have been updated?

 

[fmj]

Cooker, thanks for the reply. I got under the truck again and looked at the rollover valve and grommet. The part number 52127666 is correct for the valve. I can actually read it using mirror and a little SnapOn magnetic lite. It also is the same size as the new one. The grommet is definately wrong one, even though this shows up as the correct one in the site Thomas showed me. The grommet (or gasket??) is the same o. d. as the valve and appears to have a metal piece to it. The part number 4616244 is way too large. I'm going to input the part number you listed in the site that Thomas showed and see what comes up. I did a search on the rollover valve and didn't get the one you did, so I'm going back and do an other search. Thanks again guys.

 

[fmj]

Well the 4002149 shows as a rollover valve grommet, but its for a earlier years. Still not going to discount it just yet though.

 

[Cooker]

Is is leaking from the grommet or the valve?



I have replaced a couple and I didn't see much of a need to replace the grommet.

 

[fmj]

It appears to be leaking from the grommet. Hummmmmmmmmm, I seemed to notice that you and Thomas have been dealing with the rollover valve subject since 2001 or earlier . You guys should have just told me to quit screwing around and get to work. Anyway, there is no difference in the part number 52127666 used for the earlier year tanks and the 01'. The Figures all show the same configuration in service manual, Fritz's site, etc. The service manual 01' supplement doesn't have any information that would update configuration or part number. So the grommet part number 4002149 has to be the right one. I'll have to order a new one tomorrow, and won't be able to intall for another week as I'll be on a trip. I'll come back once its done and post how it went. Again, thanks for getting me on track. Oo.

 

[fmj]

Well the part numbers were wrong for my truck. I turns out that the part that came out is a 52102172, which is a rollover valve for GAS??? Oh ya, it don't pull out, but has a tab that twists in and a spring washer to keep tight. Which might have caused another problem in that if it had two tabs, one is gone #@$%! as it now has only one. This is probably why I couldn't get the valve to seat right and it leaked. I'm trying to go backward in P/N's to see if it had two tabs or only one. Just an update.

 

[fmj]

One of you guys that knows, do I need to switch out the internal module from the gas version to the diesel version? Is there a difference? The tank is the same according to the part number(s) on the tank. Tank is marked 52102241AO for gas and 52102238AF for diesel, same configuration. I'm still trying to track down weather the version I have had two tabs or only one holding rollover valve in. If the tab is broken, then I'll have to replace module anyway. Just trying to get all the information I can. Thanks.

 

[Thomas]

. . . from the gas version to the diesel version? Is there a difference? The tank is the same according to the part number(s) on the tank. . . .

Actually I don't know. Looking at the page from the parts catalog (linked above) I see four different modules.

The module designated as item #1 comes in three flavors, all for gasoline engines.

The module designated as item #-2 shows engine ETO, the standard output Cummins. The dash before the item number indicates that the part is not illustrated in the parts catalog.

My first reply to you suggested that the same grommet (P/N 4616244) is used with the rollover valve for both gas and diesel modules. That suggests to me that you may have a diesel module that someone stuck a gasser rollover valve in.

The tank part numbers you listed are consistent with the 34 gallon/short bed tank that is appropriated for the truck in your profile.

Incidentally, the gassers have two rollover valves. The 35 gallon tank has both on the top of the tank. the 26 & 34 gallon tanks have one on the top of the tank and the other on the module.

From your Factory Service Manual:
The rollover valve is seated into a rubber grommet. Remove valve by prying one side upward and then roll valve out of grommet.

 

[Cooker]

I just remember I have an extra rollover valve in the truck. I will run out and grab it and post a picture. It was purchased for a 1998. I do not know if the newer truck have a different rollover valve?

 

[Thomas]

I just remember I have an extra rollover valve in the truck. I will run out and grab it and post a picture. It was purchased for a 1998. I do not know if the newer truck have a different rollover valve?

It depends on what you mean by newer. The second generation Cummins/Rams all seem to use P/N 52127666.

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FUEL TANK VENT VALVE, All Models, Diesel Engine 1994 - 2002


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[Cooker]

By newer, I meant 2001 like the OP's truck.

 

[fmj]

Thanks for getting back to me on this guys. The rollover valve and grommet that match what is suppose to be used is 5212766 and 4002149 respectively. The rollover valve is a black with white top center. Those are the ones that the service manual says needs to be pulled out. The part that came out of my tank is the 51102172 (taken off part) and is gray with black top center. It has an o ring around it and has flange that hooks on to the tab on the tank unit. This type of valve needs to be twisted counter clock wise and pulled up. It also has a spring washer that keeps tension on it. I thought that it might have been installed in error also, as the tank leaked before and dealer "fixed". So I looked and felt inside hole (tank was not dropped) and noticed tab. The grommet 4002149 will not fit into hole as configuration is different. The only thing that I thought was when work was done on previous leak, the dealer replaced the module with a gas one?? Don't know why because all it needed was the seal. That dealer is now out of business. I went to the 5 star Chystler dealer on getting tank dropped again when I first noticed the fuel leaking out and the manager said they didn't "have a diesel mechanic", so replacing the origional leak with a gas module could be a real possibility. I am definetly not going to that dealer except for DC unique parts that I have numbers for. Thomas, I noticed that they didn't show the -2 module and that is why I wondered if I needed to pull module and replace with the correct diesel module. I was hoping that you or Cooker knew the configuration differences, if any. What I really wondered is if there is a heating element in the diesel version. I know that they wouldn't put one in a gas version. Since tank is same for gas or diesel, depth is not an issue. Also, the tank I have has only the one rollover valve in correct place per service manual figure, just the gas version. Cooker please do still let me know what your rollover valve looks like. I'm still searching information as best I can before I go any further on this SIMPLE project :-laf .

 

[Cooker]

I thought I had it in the glove compartment on the truck. It was not there. I will have to dig it up. Hopefully I can find it somewhere

 

[CTD12V]

OK, let me resurrect an old thread. Fmj, did you ever get resolution to your problem? I am in the same situation. I ordered P/Ns 52127666 and 4002149 from Parts.com, and when they arrived, lo and behold the new grommet does not fit snugly on the new rollover valve. #@$%! It is too big. I haven't taken the old ones out of the fuel module on the tank yet, so I don't know if they sent the wrong grommet or the wrong rollover valve. Anybody got any solution to this?



Thanks,



CTD12V

 

[fmj]

CDT12V, the part that I finally ended up with was for the gas version of the fuel tank. I'm in Montana now and don't have the part numbers with me to give you all the information. I won't be back home for a few weeks. Can you hang on for that time? It sounds like you haven't pulled the valve out yet, so be careful and twist it cc so you don't break off tabs on tank. Its possible to use a mirror to look up on the tank and see if the part is the color I described. If it is I would suggest that you wait until you get the new part and see how it comes out. You can with a little effort do it without removing tank. The part number that I gave for the one that I removed has been updated (as usual) but you can get to the new version by having dealer cross reference it. Maybe someone reading this thread can get you to a site that can cross reference parts. I should have given the final information on this thread once I fixed it with the part number for reference to anyone else who had this issue. Sorry. CDT12V keep me posted here. If I don't get back it because I don't have wifi, but as soon as I can access (usually a couple of days at most) I will help anyway I can.