Shop-air vacuum pump that pulls old fluid out and pushes new ATF up into sealed-for-life transmissions through 15 fill-port adapters.
If you are servicing a Chevy Cruze, Malibu, Equinox, Sonic, Trax or GMC Terrain with the 6T40 or 6T45, you already know the problem: no dipstick, a level that has to be set hot with the engine running, and a check plug that only tells you something once fluid is already in the case. This air-operated kit gives you a 6 liter tank that runs off shop air, a two-way rotary valve that switches between extracting and dispensing, and 15 fill-port adapters, so you can feed fluid in a controlled stream instead of squeezing quart bottles over a hot engine.
The 6T40/6T45 does not hold its level in one simple sump. GEARS magazine (ATRA) describes a fluid level control valve, a thermally controlled standpipe with a bimetal strip next to the valve body. Below about 60 C (140 F) it lets fluid drain out of the valve body cover into the sump; as the fluid heats up it closes and traps fluid there, which raises the working level. That is why the level is set hot, and why you need a way to add small amounts while the engine idles. With this tank charged with DEXRON VI, you open the valve, let air pressure push fluid in, and close it again the moment the check hole starts to drip. In extract mode the same tank pulls used fluid out through the long hose on units with a dipstick tube or an open fill hole, and it handles gear oil, engine oil and coolant too.
ATRA bulletin 1725 for the 6T35, 6T40 and 6T50 gives the check: start the engine, shift through every range pausing about 3 seconds in each, idle at 500-800 rpm for at least 3 minutes, and confirm transmission fluid temperature is 85-95 C (185-203 F) on a scan tool or the driver information center. Then, with the car level on the hoist, engine running in Park, remove the oil level set plug. A steady stream means wait for it to drip; no fluid means add until it drips. That is the step this pump is made for. Our 6T40 fluid change cost guide covers capacities and intervals, and if you are chasing a wet case first, read 6T40 fluid leak common spots.
This is a universal tool, not a part tied to one model year. The 15 adapters cover common side-fill and standpipe ports on GM 6L and 8L, Ford 6R and 10R, ZF 8HP, Aisin, Honda and Nissan CVT units. Thread the adapter in by hand before you open the valve; if none seats cleanly, do not force it. A cross-threaded aluminum case is a bigger job than the fluid service. It works on any compressor that supplies normal shop air. Browse the rest of our transmission service tools if you need extra adapters or a hand pump for a car without air.
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Yes. Charge the tank with DEXRON VI, bring the fluid to 85-95 C with the engine idling in Park, remove the oil level set plug and add fluid in short bursts until it drips from the hole. That matches the ATRA 6T40 procedure.
Yes. It runs on shop air for both extraction and dispensing. If you have no compressor, a lever-operated hand pump is the better choice.
6 liters, a little over 6 quarts, which covers a single drain-and-fill on most passenger car automatics including a 6T40 fluid change.
ATRA lists fluid out of the vent tube, foaming and pump cavitation, and GEARS ties overfill to code P0218 for fluid over temperature. Set the level hot and let the excess drip out of the check hole.
Yes. Flip the rotary valve to extract and use the long hose through a dipstick tube or open fill hole. On units with a drain plug, draining from the plug is usually faster.
