Replaced flush valve eau2 old style but now it will only do small flushes whether either or both buttons are pushed. Tried changing the dial on the base, raising/lowering the plastic collar, but 'big flush' button isn't keeping the valve piston ? raised for a full flush now. Any suggestions?
Most transmission problems are caused by the transmission oil getting old and sticky. There are valves in the valve body that are precision fit and need good lubrication to work properly. When problems start they are usually caused by a valve getting stuck and not moving into the position it is suppose to be in.
I recommend a flush to remove all the old fluid with new. There are many auto repair shops that will perform a flush, but you want to be sure they run a cleaner through your transmission first, as that will clean out the sticky old deposits that are causing the valves to stick. If they do not offer a cleaner you can do it yourself. I recommend BG's transmission cleaner. It comes in a dual pack of cleaner before the flush and conditioner after the flush. You can often find this cleaner on eBay or Amazon, as most auto part stores don't carry these products. BG sells their products to the shops that perform the flush, so they are not easily available in stores, just auto repair shops.
This is for an automatic. If you have a standard transmission, you will probably need to have the bushings replaced or the linkage adjusted.
Hope this helps. Have a nice day :O)
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