Transmission issue and flush/drain questions.
02-25-20, 11:05 AM
#1
Driver
Thread Starter
Transmission issue and flush/drain questions.
I have a 2010 Lexus IS 250 AWD. I have owned it since 2014 when it had 55,000 miles and now sits at 130K miles. It was "certified" from Lexus of woodfield, and I have kept up with all regularly scheduled maintenance with lexus and at home depending on the service.
The two concerns I have are this:
1. When I get on the gas at about 45-60, it will drop to third gear, however, it will hang in the upper revs waiting on the transmission to deliver 3rd, for maybe 2-3 seconds before the transmission itself re-engages. So there is no acceleration before this point.
2. The Lifetime fluid discussion is over done. It is fluid that degrades over time, everything does. My concern is, when introducing new fluid, it wont have the same properties of the current fluid and then cause issues with items that have worn down in the transmission expecting to see the same resistance or properties of the old fluid.
So should I change the fluid to extend the life or will it just cause more problems in the long run.
I worked at lexus of Melbourne for six months and every single tech said to never touch it...
Also, I need to change diff fluid in front and rear because they haven't been done before so if anyone has ever done that, that would be great info.
The two concerns I have are this:
1. When I get on the gas at about 45-60, it will drop to third gear, however, it will hang in the upper revs waiting on the transmission to deliver 3rd, for maybe 2-3 seconds before the transmission itself re-engages. So there is no acceleration before this point.
2. The Lifetime fluid discussion is over done. It is fluid that degrades over time, everything does. My concern is, when introducing new fluid, it wont have the same properties of the current fluid and then cause issues with items that have worn down in the transmission expecting to see the same resistance or properties of the old fluid.
So should I change the fluid to extend the life or will it just cause more problems in the long run.
I worked at lexus of Melbourne for six months and every single tech said to never touch it...
Also, I need to change diff fluid in front and rear because they haven't been done before so if anyone has ever done that, that would be great info.
02-25-20, 11:27 AM
#2
Front differential for AWD. I need to fix this thread later, and some of my post's. So bear with me it's my first AWD ever owned. 
Learned along the hard way to get some things done.
FRONT:
https://www.clublexus.com/forums/is-...l#post10282976
Rear: ISx50
IS250 uses less fluid than the IS350 only difference.
https://www.clublexus.com/forums/is-...al-fluid-chang
Learned along the hard way to get some things done.FRONT:
https://www.clublexus.com/forums/is-...l#post10282976
Rear: ISx50
IS250 uses less fluid than the IS350 only difference.
https://www.clublexus.com/forums/is-...al-fluid-chang
02-25-20, 11:39 AM
#3
Driver
Thread Starter
Ok, so from my understanding the procedure should have the car up to temp. 2-3 quarts will drain, put the same amount of new fluid back in, and then get the car back to operating temp, then pull the overfill drain plug. Is this in the right line of thinking?
02-25-20, 11:41 AM
#4
Driver
Thread Starter
Front differential for AWD. I need to fix this thread later, and some of my post's. So bear with me it's my first AWD ever owned. Learned along the hard way to get some things done.
FRONT:
https://www.clublexus.com/forums/is-...l#post10282976
Rear: ISx50
IS250 uses less fluid than the IS350 only difference.
https://www.clublexus.com/forums/is-...al-fluid-chang
Learned along the hard way to get some things done.FRONT:
https://www.clublexus.com/forums/is-...l#post10282976
Rear: ISx50
IS250 uses less fluid than the IS350 only difference.
https://www.clublexus.com/forums/is-...al-fluid-chang
Thank you
02-25-20, 11:50 AM
#5
Driver
Thread Starter
That's simplified to the actual procedure, but yes. The final steps are to put it in transmission check model, which ensures that the transmission is at the correct temperature, and let it drain out of the overflow until it's a thin stream. If you don't do this step, you won't get the correct amount.
02-25-20, 12:46 PM
#6
Lexus Champion
I have a 2010 RWD IS350, I did the rear differential fluid change a few weeks back at 60K. I used Amsoil Severe Gear oil 75W-90. Car has never driven better. at around 70K or 80K I will be changing the ATF fluid with Amsoil Synthetic ATF that I picked up from a friend who had extra. I'm going to let my mechanic do it, he's done a lot of Toyota's and Lexus's, he does a transmission flush
02-25-20, 01:25 PM
#7
OP I will only say that your comments seemed mixed. No fluid lasts forever and Buddies said its fine.
I have six years at a country wide transmission service center rebuilding transmissions.
People are living on old tales from the past that WERE TRUE 30 and 40 years ago. They are not true today! Fluids are no longer turning into turpentine and breaking down like they used to. Change the fluid sooner than later or pay the man.... As for power flushing being harmful, the only fluid swap that is harmful is when services do not return the same pressure and volume in the coolant lines. Specifically doing dumb things like pumping oil out of a cooling line and not returning anything in the return line. That will destroy stuff.
Change the fluid....
I have six years at a country wide transmission service center rebuilding transmissions.
People are living on old tales from the past that WERE TRUE 30 and 40 years ago. They are not true today! Fluids are no longer turning into turpentine and breaking down like they used to. Change the fluid sooner than later or pay the man.... As for power flushing being harmful, the only fluid swap that is harmful is when services do not return the same pressure and volume in the coolant lines. Specifically doing dumb things like pumping oil out of a cooling line and not returning anything in the return line. That will destroy stuff.
Change the fluid....
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02-25-20, 01:36 PM
#8
Lexus Champion
As for power flushing being harmful, the only fluid swap that is harmful is when services do not return the same pressure and volume in the coolant lines. Specifically doing dumb things like pumping oil out of a cooling line and not returning anything in the return line. That will destroy stuff.
Change the fluid....
Change the fluid....
Last edited by AMIRZA786; 02-25-20 at 01:48 PM.
02-25-20, 01:38 PM
#9
Driver
Thread Starter
OP I will only say that your comments seemed mixed. No fluid lasts forever and Buddies said its fine.
I have six years at a country wide transmission service center rebuilding transmissions.
People are living on old tales from the past that WERE TRUE 30 and 40 years ago. They are not true today! Fluids are no longer turning into turpentine and breaking down like they used to. Change the fluid sooner than later or pay the man.... As for power flushing being harmful, the only fluid swap that is harmful is when services do not return the same pressure and volume in the coolant lines. Specifically doing dumb things like pumping oil out of a cooling line and not returning anything in the return line. That will destroy stuff.
Change the fluid....
I have six years at a country wide transmission service center rebuilding transmissions.
People are living on old tales from the past that WERE TRUE 30 and 40 years ago. They are not true today! Fluids are no longer turning into turpentine and breaking down like they used to. Change the fluid sooner than later or pay the man.... As for power flushing being harmful, the only fluid swap that is harmful is when services do not return the same pressure and volume in the coolant lines. Specifically doing dumb things like pumping oil out of a cooling line and not returning anything in the return line. That will destroy stuff.
Change the fluid....
02-25-20, 02:46 PM
#10
Like putting a human on bypass for open heart surgery and pumping their fluids into a bucket without returning any. It doesn't go well.
The difference here is vehicle is out of the shop before it blows up.
This all stems from transmissions that have no drain service port. So they pump it out using the coolant lines and then top it off using a fill port or dipstick. If it only took 45 seconds great, but its more like 25min of no return fluids. Make sense? Crappy shops do do this type of stuff.
The following users liked this post:
AMIRZA786 (02-25-20)
02-25-20, 02:56 PM
#11
Lexus Champion
Not much to it. Return what you take out as bearings, bushings, thrust surfaces are counting on fluid for survival.
Like putting a human on bypass for open heart surgery and pumping their fluids into a bucket without returning any. It doesn't go well.
The difference here is vehicle is out of the shop before it blows up.
This all stems from transmissions that have no drain service port. So they pump it out using the coolant lines and then top it off using a fill port or dipstick. If it only took 45 seconds great, but its more like 25min of no return fluids. Make sense? Crappy shops do do this type of stuff.
Like putting a human on bypass for open heart surgery and pumping their fluids into a bucket without returning any. It doesn't go well.
The difference here is vehicle is out of the shop before it blows up.
This all stems from transmissions that have no drain service port. So they pump it out using the coolant lines and then top it off using a fill port or dipstick. If it only took 45 seconds great, but its more like 25min of no return fluids. Make sense? Crappy shops do do this type of stuff.
02-25-20, 03:16 PM
#12
When I asked my Lexus dealer exactly what they were doing for $100 a quart they said for $300 they will keep it over night, drain what comes out and fill to level checking it. I said no.
It pays to ask. Everyone - male or female should ask, show me the parts, show me the process if there is a hint of BS going on. Not just transmission work. All work. That hesitation of (insert whatever pukes out) can be very telling of the business practice.
When they say sure, its right here, you can decline... Same is true of repair quotes. Show me where my money is going.
It pays to ask. Everyone - male or female should ask, show me the parts, show me the process if there is a hint of BS going on. Not just transmission work. All work. That hesitation of (insert whatever pukes out) can be very telling of the business practice.
When they say sure, its right here, you can decline... Same is true of repair quotes. Show me where my money is going.
The following users liked this post:
mike33 (02-25-20)
02-25-20, 03:58 PM
#13
Lexus Champion
When I asked my Lexus dealer exactly what they were doing for $100 a quart they said for $300 they will keep it over night, drain what comes out and fill to level checking it. I said no.
It pays to ask. Everyone - male or female should ask, show me the parts, show me the process if there is a hint of BS going on. Not just transmission work. All work. That hesitation of (insert whatever pukes out) can be very telling of the business practice.
When they say sure, its right here, you can decline... Same is true of repair quotes. Show me where my money is going.
It pays to ask. Everyone - male or female should ask, show me the parts, show me the process if there is a hint of BS going on. Not just transmission work. All work. That hesitation of (insert whatever pukes out) can be very telling of the business practice.
When they say sure, its right here, you can decline... Same is true of repair quotes. Show me where my money is going.
02-26-20, 02:06 PM
#14
Driver School Candidate
Change it
You should change it. I bought a 2011 is250 AWD never changed. I have done 3 drains and fills and each time it gets better.
1. I live in Houston and the Lexus dealers will not touch them
2. The Toyota dealers will service the same transmissions Lexus considers to be a lifetime. Toyota recommended transmission fluid change interval 3 years 36000 miles https://www.joemyerstoyota.com/servi...houston-tx.htm
3. Aisin who makes the transmission suggests you change the fluid every 2 years 20000 km. See attached
http://www.aisinaftermarket.jp/en/to...ary/index.html
If you have read this you pretty much know that you a sabotaging your car by not changing the transmission fluid.
1. I live in Houston and the Lexus dealers will not touch them
2. The Toyota dealers will service the same transmissions Lexus considers to be a lifetime. Toyota recommended transmission fluid change interval 3 years 36000 miles https://www.joemyerstoyota.com/servi...houston-tx.htm
3. Aisin who makes the transmission suggests you change the fluid every 2 years 20000 km. See attached
http://www.aisinaftermarket.jp/en/to...ary/index.html
If you have read this you pretty much know that you a sabotaging your car by not changing the transmission fluid.
