OK, if you can guarantee it's not a sensor problem, then perhaps you can be bold enough to say just what this internal problem would be that would cause the symptoms I have described.

 

I don't like your CVI values. That makes me suspect. I've never had a tps cause limp-in.. odd shifting but no limpin. you'd have an engine Pcode for TPS, I don't see that listed. TPS cannot and will not cause a 4th gear ratio error. how could it? Wouldnt you have a 1st, 2nd or 3rd issue too?

 

Well all of the CVI codes were within the normal range, however the only one that I was also somewhat concerned about was the OD it is reading at the high end of the normal range (OD: - 149 (normal 48-150)). However the suggestion about the sensors had come from the dodge mechanic at the dodge dealership, after running the diagnostic on the van, and coming up with this information. He was suspecting an electrical problem with the transmission, which would be tied in with the sensors.

 

)). However the suggestion about the sensors had come from the dodge mechanic at the dodge dealership, after running the diagnostic on the van, and coming up with this information. He was suspecting an electrical problem with the transmission, which would be tied in with the sensors.


OK so why are you asking online when you directly dealt with a true "expert"?

Do what he says (I know it won't solve the issue) but you're doubting me so I'm sure I'm not right as I'm not a master transmission tech, I never saw your vehicle like the expert that did. I'm unable to assess your problem any further. But I'm certain a TPS isn't the cause of the code 54, not causing the Limp-in condition.

I did a google search for code 54 and every source says it's ONLY caused by an internal transmission failure. Even the chrysler FSM says that. IDK why your dodge dealer expert didn't offer any real advise. but if it makes you feel better replacing the sensors, go for it and let us know how that worked out for you.

 

No I am not implying that it is an automatic situation that limp mode = replace tranny. But, I have had two separate incidents where this happened my 1991 Dodge Caravan with a 3-speed auto (3.0L engine) and my 1996 Dodge Grand Caravan with a 4-speed (3.0L engine). Therefore, with my personal experience with Dodge Caravan transmissions is exactly what I wanted to say and I said it. Right or wrong, it is what happened to me and therefore COULD be the solution for the post I was responding to.

In both cases, the cost of working on the tranny or just having them get a rebuilt replacement and swap them out were almost identical. So what would be the point of replacing a part and having no additional warranty, or gettng a 1 year, 25000 mile warranty for replacement and only paying about $200 difference? Hmmmmm? Which makes more sense?

I am so sorry that my post offended you so badly that you felt the need to "jump the thread", but just for future reference, nothing anyone posts here is absolutely the answer until the OP says that the problem was fixed by doing 'x', so just take that (and anything else I ever post) with a grain of salt. My advice (and I am not a doctor nor do I play on on TV), take some Xanax and chill out.

 

First a 3.0 3speed has absolutely no relevence to this issue.

2nd there's litterally 100's of things that goes wrong with these transmissions. Some are simple sensor issues, wiring issues, filter change to more expensive internal problems. This code 54 is definitely not an simple sensor issue.

 

Wow. If you will read the OP's post that I responded to (gahn43), what he posted could very well been what I personally experienced almost identically when my system went into liimp mode. The only thing he left out that I also experienced is a series of violent shudders that made me think the whole damn drivetrain was just about to drop onto the road.

So, yeah, it has relevance here as it really does not matter internally what caused limp mode, but if it is like what I experienced, then repair or replace costs almost the same - and I went to 4 locations, only one of which was the dealer. My post simply gave him what I consider to be the worst case senario and to be prepared for it - ie - the pucker factor followed by the bend over and take it factor.

Thanks. I had no idea that modern transmissions had so many electronic controls and sensors that may affect their operation.

Hey guys, please remember that we are all trying to help. Beating up or berating posters gets no one anywhere and usually the final result of what caused the problem and what the ultimate fix was never gets posted because people don't want to put up with the hassle of getting thread spammed.

 

It is crucial to help the OP with accurate information relevant to the issue. Discussing issues with a transmission that has nothing in common with his problem doesn't really seem to offer a problem solving advantage. Plus can lead to more frustration and expense chasing a non-existant component. 3speed transmissions do not have limp mode.

Yes, there 100's of problems that occur with overdrive transmissions.

Just calm down and offer advise to solving the OP's code 54 issue.

 

My last message on this thread before this one from you was just to post the information I received from the Dodge dealership after taking my car in to get the codes read.
However after reading this post from you I am also somewhat suspecting I was mislead by the dealership mechanic. However his statement to me after reading the codes and the CVI data, was that the clutches were good and operating within the parameters. The information I posted about the normal ranges was from the paper they printed up for me regarding the CVI data. The mechanic did not seem too concerned about the code 54 because when he cleared it and then too the vehicle on a test drive he did not experience the problem himself and the code did not show up again after he got back from the test drive. He was suspecting an intermitting electrical problem. And when on my way back home the problem did not come back till after I punched the accelerator. I should have asked more questions from the mechanic while I was there and should have requested a more through diagnostic, to determine the problem. But his information was optimistic, and gave me hope for an easy repair, but after reading your message it got me thinking his information was misleading and that you are probably right with what you are saying. I am considering returning to the dealership Tuesday to have them complete the diagnostic.