help on odd transmission behavior on '22

[C185]

Greetings to all!

Haven't posted much at all since purchasing my '22 Sport. Have 25,500 miles so far and everything good until yesterday.

I'm in the middle of a business trip from Indiana to Virginia and back. Yesterday on I-95 approaching the Wash. DC beltway, and in a lot of stop and go, slow moving traffic, it felt like the trans was feeling a bit ill. Specifically, when the road occasionally opened up a bit so I could speed up, and I reached 60 mph, the trans would stutter and clearly kinda "miss" a beat somewhat regularly while in 8th gear. So, switching to the manual side, I could go to 7th and everything was smooth.

Additionally, at slower speeds, it failed to quickly downshift while slowing down (while once again back on the auto stick. At 15-20 mph or so, I could check and see the trans was still in 5th for example.

Made a stop for fuel, and back on the road, it was better. No lights indicating a problem during this. The last leg into a stopover here in Maryland was smoother, and I was able (when traffic allowed) to make 70+mph w/o the stutter.

My wife and I are headed back to Indiana tomorrow. The plan is to drive on and make it home, and then see a local dealership.

You guys (and gals) are a treasure of knowledge and experience. Ideas? Thanks a ton...

Sponsored

 

[Hootbro]

Sounds like a sticking shift solenoid in the valve body. Until you throw a transmission code, not really much you can do about it unless you can duplicate the condition and take it in to the dealership for diagnosis.

 

[Lost1wing]

An engine misfire can feel like a transmission issue under load. A code may not be found for a misfire unless it start happening more frequently. Either way, I hope you figure it out.

 

[C185]

Thanks a lot for the replies! Yeah, I'll give it a go and head for home (almost 700 miles) and just monitor it as we go.

I agree that the next sign of big trouble should be some visible warning light. No sign of fluid loss anywhere. No dipstick to pull and smell, and after all, the trans is "good for life." If it's engine related, well... Either way, should get a check light. And maybe it'll smooth enough to make the trip with an overnight stop half way. We used to drive it straight thru for years, but life has its changes.

Thanks again for the help, and wishing you all the best...

 

[SoK66]

Sounds like the tran’s adaptive program is “relearning” driving conditions and driver behavior. Sometimes the powertrain logic, having learned your driving routine, is co fronted by new data and goes “wtf?”

 

[C185]

Thanks--you may be right. The JT certainly had not been prepared for driving on I-95 and 495 around D.C.! I honestly don't know how folks there can deal with that kind of traffic daily...

Update for today was we made it to Eastern Ohio, covering 350 miles with no trans anomalies at all! So tomorrow another 350 and we're home again in Indiana.

Thanks to the good members here for the possible causes. I wonder if some micro piece of metal plugged one of the passages in the valve body and eventually passed thru and made it to the filter...

Like Mr. Ed said to Wilbur when they first met, "Wilbur, it's bigger than both of us." Cheers...

Sponsored