I want to flush my transmission out?

Question

I want to flush my transmission out. I drive a 2003 chevy blazer. I want to flush it out and put more fluid in it. What are the steps of doing that? What do I use to flush it out? where do I and how do I drain out the old fluid. Im taking a trip through the mountains and want to make sure my vehicle is in good order

Answer 1

Most transmissions don't have a drain plug like your engine oil drain plug. So the quickest way to change some of the fluid is by removing the drain pan which isn't simple and is very messy to do. I would advise you to take it to a shop that has a transmission fluid flush machine for service. Otherwise, you might try to suck the fluid out of the transmission using a suction pump. That's not a bad idea if good suction pumps are available for that purpose.

Answer 2

Actually a home owner can't do this without a very expensive flush and return machine. I would suggest however since your vehicle is relatively new that you simply have a shop drop your automatic transmission pan and replace the filter and refill the transmission.
The flush systems do not include changing the filter. the only thing they have going for them is that the flush and refill actually replace the fluid inside the torque converter.

On an older vehicle with many miles on them flushing is very dicey at best as occasionally dirt is dislodged and plugs the transmission valving and spring loaded check balls which causes bigger problems. Many national chain transmission shops will not use the flushing systems for this very reason.

The person above is correct. Never on this green planet trust fast oil change shops for any reason, too many mistakes are made. A new car dealer won't charge any more and a more professional caring person actually knows what they are doing including changing motor oil.

The ball is in your court.

Answer 3

First make sure that your trans needs the fluid change first.. Does the fluid look dirty? Is it brown? Does it smell burnt? The capacity in that blazer is about 14 quarts. Jiffy Lube has a service that will change all 14 quarts. Its a machine that uses the tranny cooler lines to exchange the oil fluid for the new...While the truck is running. Don't forget about the pan filter...Goodyear service centers can perform this too.. Don't forget about the rear differential, cooling system, engine oil. My recommendation is that after the service is completed, drive the truck for a few days around town to make SURE that there is no problems. If there is a problem they will usually show their ugly face in a few days..

Answer 4

You really don't need to "flush" out the tranny oil. They don't get gucked up like engine oil. But the tranny oils do get depleted (thin and dirty) so doing an oil change is a good thing every few years.

BUT don't go to quicky lube places. They have no idea how to do anything outside of their daily engine oil change. They WILL screw it up some how (like putting in wrong oil - like in my Civic). Go to your dealer for this.


Good Luck.

P.S. So far I learned the hard way that quickly lube places are always screwing things up (they also put incompatible fluid in my Audi radiators).

P.P.S. Even worse recently they (TV stations) have been investigating quicky lube places who take your money and does NOTHING! See You Tube for the videos.

Answer 5

take to shop...pay 60 for new filter and fluid...go to jiffy and pay 100 for tranny suck out and new fluid......diy??? get shop manual...