I've rebuilt a few and replaced many 97-01 transaxles in CR-V's. The problem doesn't end there either, the 2002-2005ish models I've heard are also known for lockup problems, generally with a lack of maintenance I would suppose. With the 97-01's the fluid would overheat, and cause clutches in the transmission to fail in extreme situations, (tow-ins) lots of burnage. When they go though it can make a huge painstaking mess of everything.

But nonetheless, I replaced one transaxle in an 04 4WD because of converter shudder, produced a P1741 code with it. The problem was subtle, but noticeable if you watched the tach jump around, looking at the scan tool though commanding full lockup in 3rd gear produced a 275-400rpm variance, and in instances with the TCC disabled, would attain close to lockup status with RPM variances between 0-50rpm under slight load. When I removed the converter there were busted up pieces of friction in the converter, and the turbine would stick in certain positions. I should have cut that one up because I'm pretty sure the TCC plate would have looked like a wave washer.

A bang is pretty severe, was that one rebuilt previously? Usually I see it with the slipping trans coming into the shop that is out of fluid, and usually has a shudder as well. I will assume it had adequate fluid. If it had been apart before the sky is kinda the limit as to what could have happened. Scarf seals, incorrect installed height/wrong thrust setting, valves in the wrong holes lol, rolled lip seals, the list could really go on and on.

Do you still have it?

 

thamks - very helpful

 

I have a question about an 98 Accord EX coupe 4 cyc with a auto 4 speed BAXA. I rebuilt it, to include the valve body. I cleaned the bores with the bench buddy brushes, replaced the Converter charge pressure reg valve with the Sonnax part number 98892-04K, Also installed transgo LK2 lube correction kit, the end plugs on the valve body were replaced with Sonnax o-ringed end plugs kit 98892-01K. The TC was also replaced.

My issue is around 1700 RPM, I have a flux of 100 to 300 RPM between 35 to 42 mph, and if I accelerate a little it goes away. Also when stopping the trans shifts hard into 1st. If I come to a slow stop, it is hardly noticeable.

Any ideas, Thanks

 

As a degreed mechanical engineer, I can say that is one of the better explanations of AT design and function I have seen. If only my college textbooks had been so clear and in-depth. I appreciate the work you put into this to pull information from a variety of sources, in addition to your evidently sound understanding of the topic. Very well done. Thank you.

 

Dues anybody know how to put manual transmission on a D16Y5 replacing the original CVT?
If someone has the write-up please let me know.
Thanks

 

This should help you out: http://civic-hx.6thgearadvertising.com/

 

Thanks for your help, i think this will help me out. It's a very good write-up.

 

Maybe an odd side question.

Really enjoyed the write up, learned quite a lot about the foreboding automatic.

My question has to do with the 92-95 4 speed 5th generation civic automatic transmission. When I was looking through the FSM on it, it depicted a change of fluid flow during lockup operation.

Is this fluid flow change internal only or does the fluid flow in reverse through the cooler too? (I'm skeptical it goes that far in change but expert advise is preferred)

 

Hi everyone.
I have2006 Honda CRV A/T with 58,000 miles that is having a vibration problem. It feels like I am driving over rumble strips on the side of a highway but it only happens when the rpms are 1000-2000 and from 20 to 40 mph. I can be driving straight or on a curve. As soon as I take my foot off the accelerator or add more gas (change the rpms) the vibration stops. Do you think it is trans issue?
Thank you in advance!

 

Every automatic schematic I have professionally looked at have check valves built into the circuit. This would prevent any reverse operation at all. The oil is usually sent out right after the converter uses it, would be too hot to use in any other way.

 

Awesome detailed info. Thank you.