How do you flush an automatic transmission?
Disconnect the hose that returns the transmission fluid from the cooler and place the end into a bucket full of fresh transmission fluid. Start the car and run the transmission back and forth through the gears a few times until the fluid coming out of the transmission looks clean or you are nearly out of fresh fluid.
What are the steps on properly checking automatic transmission fluid?
How to Check Automatic Transmission Fluid
- Pull out the dipstick. With the gearshift in Neutral or Park and the parking brake on, let your engine run.
- Check the fluid.
- Wipe the dipstick with a clean, lint-free rag; then reinsert it and pull it out again.
What parts do you need for a transmission flush?
The first thing you need is a transmission filter service kit. The service kit includes a transmission filter and a pan gasket….Here’s what you’ll need:
- Socket wrenches.
- Screwdrivers.
- Mallet.
- Longneck funnel.
- Two old milk jugs.
- Jack stands or car ramp.
- Wheel chocks.
- Brake cleaner.
When to do a flush transmission fluid change?
A transmission fluid flush, however, uses pressure to push all the old transmission fluid out of the system as it is refilled with new fluid. It is more of a fluid exchange than a drain and refill. For this reason, many mechanics recommend performing a second fluid change within 10,000 miles of the first.
How does the transmission pump work in a flush machine?
The input shaft turns the transmission pump and it makes hydraulic pressure. This causes fluid to flow through the cooler line. As fluid leaves the cooler line it enters the chamber on the flush machine. As the old fluid side of the diaphragm fills it pushes the diaphragm up and forces new fresh fluid into the transmission.
Can a 4×4 transmission use a flush machine?
If you have a 4×4, the transmissions will look different than my pictures, but this may still help to guide you through the process. Outside of having access to a flush machine, this is the next best thing – and free except fluid costs. A very small amount of original fluid does get mixed in, but it’s negligible.
What’s the difference between a transmission flush and a drain?
Gravity is simply not enough to remove it because it sits inside other internal parts. A transmission fluid flush, however, uses pressure to push all the old transmission fluid out of the system as it is refilled with new fluid. It is more of a fluid exchange than a drain and refill.