i have a 2004 chevy silverado with a V8 6.6L turbocharged duramax diesel, it has an N74 allsion transmission. i have heard of some people disconnecting the line to the transmission cooler and letting their truck idle but it dosent sound safe. is there any other ways to get all of the old fluid out when changing it?
ThanksHow do i change all of the fluid in my automatic transmission, not just the fluid in the pan?
Take your truck to a transmission shop and have them do a 100% exchange flush. 150-175$. That is the only way to do a 100% change from old to new. You can by the equipment and do it yourself but that isn't very cost effective.
PS- a 2004 doesn't need a full exchange or flush, just a regular change by dropping the pan replacing the filter and removing any metal flakes on the magnet.How do i change all of the fluid in my automatic transmission, not just the fluid in the pan?
The transmission cooling line is how you do it. The pros have an expensive machine to circulate it, but you can do it yourself with a 5 gallon plastic bucket. You just disconnect the return side cooler line from the radiator and hook the radiator port that the fluid comes out of to some tubing going to the bucket. Remembering to plug the line going back to the tranny.
Mark the side of the bucket in 1 quart intervals. Then you just run the engine long enough to pump one quart of fluid into the bucket, turn it off and add a quart of new fluid to the tranny. Keep doing that till you've used up as much fluid as your transmission holds.
You'll need to drop the pan and do a regular service before you flush, filling the pan back up with clean fluid. That keeps you from mixing old and new fluid when you start the flush.How do i change all of the fluid in my automatic transmission, not just the fluid in the pan?
Could take to a shop or lube place where they have the equipment to pump it all out, including that from the torque converter.How do i change all of the fluid in my automatic transmission, not just the fluid in the pan?
on the manual it lists removing the plug to drain, refill with new oil, run car, drain and refill again, run again and drain and refill, check oil until you see the oil %26quot;clean%26quot;
Sucks Ha!!How do i change all of the fluid in my automatic transmission, not just the fluid in the pan?
take and have the tranny flushed is the only way other than pulling the tranny and taking the torque converter out and dumping it, if you want it all out the flush is what I would recommend plus tell them you want the filter changed too as they won't do that with a flush unless you tell them to.How do i change all of the fluid in my automatic transmission, not just the fluid in the pan?
letting the pump work the fluid out is a BAD idea, as the fluid enters the pump, it gets cycled through the transmission pressure circuits, and into the torque converter, from the converter it goes to the cooler, then it goes back to the transmission to lubricate the moving parts - so as you can imagine, unhooking a cooler line will cause the transmissions moving parts to not be lubricated.
The only way you can really be assured that you have cycled all the fluid out of the transmission is to have a shop flush the transmission using a special device built just for this purpose.How do i change all of the fluid in my automatic transmission, not just the fluid in the pan?
Take it to a tranny shop and they have a flush machine that will do the job, but most experienced tranny mechanics don't recommend this procedure on a good working tranny. Check it out first by calling a few.
