How Test Valve Body Wear without Vacuum Tester Test Valve Body wear on any Transmission Valve Body 

cheers

hi, is it a 6t40 trans?...always start with checking basics first...low battery voltage can cause multiple codes, modern day alternators only maintain battery voltage they don`t charge, as the computers can`t handle the power surges, make sure you have a good and strong battery...also make sure you have a good earth connection as often they just bolt strap to paint and only connection is through thread....sometimes winding bolt in&out few times will improve connection but spray some wd40 in there or conductive grease...do the same with all ( or as many you can ) electrical connections....as well as connections under dash as your a/c and heater can also cause condensation issues on the connections under there ( especially here in oz with ssangyongs ) ....then you can move on to checking solenoids which are likely contaminated as people dont service transmissions regularly with cleaning magnets ( always add more if you can ) and replacing filters ( hard to replace filters on some trans, but you can add magnets and inline filters on cooling line) if you need more technical help contact me through facebook link, we can exchange pics, vids on there and you now owe me some beers ( see my beer link ) ! cheers

hi, you need to find a suitable tubing or plastic pipe to attach to binding valve and patiently work the valve through bore until it shuttles freely and easily. do not use paste or try file/emery paper on valve. if you damage the sharp edge on the valve it wont flush/push away contaminants and will cause sticky valve issue all the time. if the bore is too far worn, it may be time to either change the whole valve or get an oversize valve fitted from sonnax. often for a one off repair the rebore/oversize valve kit is too expensive so you can send it to get done. cheers

@@YepThatsIt Thank you for your help! I did look into an oversize kit, and you're right, the bit and valve is more money than purchasing a refurbished valve body.

im just guessing in general. im learning with everyone else here. i would run 400 grit flexhone through the bore. if you have access to a lathe. maybe check to see if the valve is bent at all. larry

hi, sorry for delay in reply, we just got back last monday. you can test at plugs or remove and test on bench. it is always good idea to test solenoids warmed up as they often appear ok at room temp, but fail when they warm up. cheers