I have rebuilt this M6ha transmission and even put in new valve body . I still have a shifting problem it will shift fine when I test drive one time but the next messes up. I saw a cable on one of the many sites I have been on when I looked up valve body pump which of course I can't find again but it was saying it should be replaced on this particular Honda so any help would be appreciated Thanks
Never did figure out the cable I was questioning about but it seems to have been a stuck valve in one of the other parts of the valve body used a can of Mr Muscle and ran it 3 or 4 times and it straightened it out
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Possible causes - Low transmission fluid level - Dirty transmission fluid - Faulty shift solenoid 'D' valve - Shift solenoid 'D' valve harness or connectors - Shift solenoid 'D' valve circuit is open or shorted
When the a transmission solenoid is stuck on, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced
I would need visuals of the valve body, and for that year rav4 they are getting over on you with the price of the transmission.
The ECM replacment would have been the first thing I would have done, as the the ECM controls all the valve servos in the valve body.
most of the time it's not the body that goes bad but the servos or the wiring. But in your case, 99.9% positive your ECM shift control programming has gone bad.
OK allot of people don't under stand transmission because they think a transmission is complicated. When the fluid is cold it is thick and can't move as fast and can't build pressure as fast as hot transmission fluid. There are small 1/16 holes in the Valve Body that the fluid has to pass through and Valve that get ***** out from allot of use. When a valve ware and fluid can go through the space that it couldn't before when it was new and the differences of hot and cold fluid makes a big differences. The fluid can move passed the valve and into the accumulators that operate the shift mechanism. So that why it shifts good when it's cold and hard when it's hot. Might be a sticky valve or shift solenoid or just need rebuilt. In the past if i had trouble like this and had to rebuild the transmission before i did that i would put a can of thick STP motor oil Treatment in the transmission because it thickens up the transmission fluid and make my car shift like new. Its not going to hurt nothing it mixes well with the transmission oil.
Why do you need a new transmission? What was it doing. Becareful in working with a dealership. One of the most common problems is that of hard shifting or the engining reving inbetween gears then slamming into gear. This is a problem with the valve body that shifts the gears. If you get this fixed soon and are careful driving it to a good transmission shop, you will not need a full transmission. The valve body, fulid and gaskets must be replaced. This will run $1500-$1800 not $3500
This is a known defect withthe transmission that has not been recalled. Report this to NHTSA as a safety related issue.
Well it is going to be some work. From what you described you have a 3 speed transmission. You will need to remove the bottom pan and unbolt the valve body. The shifter shaft has come out of the detent on the valve body and the check ball for the detent has come out. Once you remove the valve body you can put it back together. If you need more help let me know. I have taken a few valve bodies off the 31TH/A413 transmission and i rebuilt a few too.
It is a very common issue If you have a 4L60E, you may have a problem with the valve body. As the valves bores get worn hydraulic pressure is compromised, there are fixes out there for this transmission, check out www.sonnax.com they have many parts to help resolve the transmission of these problems. Also you should check or replace your separator plate as sometimes the check balls that regulate the hydraulics of the transmission become stuck onto the plate. I've done quite a few of this model transmission and its almost always the valve body problem. HOWEVER FIRST CHECK YOUR FLUID CONDITION, if the fluid is good and there isn't a large amount of debris in the pan you should try to either get a new valve body or have your rebuilt with the parts from sonnax that eliminate these hard shift problems.