View Poll Results: Flush the clutch material out of the trans or not
Voters: 29. You may not vote on this poll
The trans flush debate. Pictures on Page 3
#71
Senior Member
Posts like a Camaro
Join Date: Aug 2004
Location: Chi-Town
Posts: 1,116
Likes: 0
Received 0 Likes
on
0 Posts
Flushes are BAD. I have over 206k on my 93 with original engine and trans and not once did we do a transmission flush. We drop the pan every few years but that was it.
I would never do a flush on any car I would own for the reasons that have already been stated (new fluid shock, loosening of particulate). Its just not worth the risk and you never know for sure. I dont know about you, but $2,000 for a transmission rebuild is alot for me.
This is from a Cadillac perspective on the 4t80 but the idea is the same for any car:
http://www.cadillacforums.com/cadill...tml#transflush
http://www.cadillacforums.com/forums...ranny-52k.html
Drop the pan and forgo the flush.
I would never do a flush on any car I would own for the reasons that have already been stated (new fluid shock, loosening of particulate). Its just not worth the risk and you never know for sure. I dont know about you, but $2,000 for a transmission rebuild is alot for me.
This is from a Cadillac perspective on the 4t80 but the idea is the same for any car:
http://www.cadillacforums.com/cadill...tml#transflush
http://www.cadillacforums.com/forums...ranny-52k.html
Drop the pan and forgo the flush.
#72
Ignorant User
Posts like a 4 Banger
you guys know how your not suppose to switch to syntheic motor oil on a high milage engine that has been running conventional oil? I think this is somewhat the same.
#73
Senior Member
True Car Nut
Join Date: May 2003
Location: Lethbridge, Alberta, _______Canada._______ West Coast Bonneville Fest ___05,06,07 Survivor___
Posts: 8,135
Likes: 0
Received 0 Likes
on
0 Posts
Comparitivlely speaking, an Automatic Transaxle and standard Gasoline engine are two VERY different creatures.
Were as the Transaxle has clutches, the engine does not have fiberous material that depends on thickness and pressure to operate.
I can Agree that a flush on a highmileage Transmission can be fatal in the respect that you removed the "viscosity" from the transmission, as the suspended clutch material actually makes the fluid slightly thicker, and allows the clutch facings to be..stickier for a lack of better words, an engine that has never had Synthetic motor oil MAY suffer in the respect that it could clean the crap holding around the edges of the oil seals, weather its on the crank or valves, causing a oil burning situation or a leak. Synthetic does not burn like petroleum does, infact it has more of a tendancy to resist burning, or so Ive been taught.
Without an oil change an engine, modern or old will not survive long, where as a transmission could out live the entire car.
Alot of people here have done the Petroleum oil to Syn swap...not many people have any problems that can be DIRECTLY blamed on the new oil, however, motor oil is a commonly discussed topic on Bonneville Club, Search will head you hundreds of posts/topics, as motor oil is considerd off topic at the moment.
This thread is also a bit out-dated, call it border line.
Were as the Transaxle has clutches, the engine does not have fiberous material that depends on thickness and pressure to operate.
I can Agree that a flush on a highmileage Transmission can be fatal in the respect that you removed the "viscosity" from the transmission, as the suspended clutch material actually makes the fluid slightly thicker, and allows the clutch facings to be..stickier for a lack of better words, an engine that has never had Synthetic motor oil MAY suffer in the respect that it could clean the crap holding around the edges of the oil seals, weather its on the crank or valves, causing a oil burning situation or a leak. Synthetic does not burn like petroleum does, infact it has more of a tendancy to resist burning, or so Ive been taught.
Without an oil change an engine, modern or old will not survive long, where as a transmission could out live the entire car.
Alot of people here have done the Petroleum oil to Syn swap...not many people have any problems that can be DIRECTLY blamed on the new oil, however, motor oil is a commonly discussed topic on Bonneville Club, Search will head you hundreds of posts/topics, as motor oil is considerd off topic at the moment.
This thread is also a bit out-dated, call it border line.
#74
Junior Member
Posts like a Ricer Type-R
I've had no problems with flushes on either of my transmissions over 100k. And I've never seen a single trans on tis Forum in 5 years that failed because of a flush.
#75
Senior Member
Certified Car Nut
I had a flush done @ 149k a month ago, afterwards I had issues with my TCC engaging from a stop at all.
After I put magnets on the pan, the problem stopped instantly, my guess is that crud was knocked loose, and causing low internal pressure, and the magnets held it to the bottom of the pan.
I've definetly made sure to run with the fans on anytime it gets warm now...
After I put magnets on the pan, the problem stopped instantly, my guess is that crud was knocked loose, and causing low internal pressure, and the magnets held it to the bottom of the pan.
I've definetly made sure to run with the fans on anytime it gets warm now...
#76
Senior Member
Certified Car Nut
Join Date: Oct 2002
Posts: 11,308
Likes: 0
Received 0 Likes
on
0 Posts
Jason, good to hear the magnets helped you out. They seemed to help out Vital as well, though he had about 20 on his pan. lol
I am planning on dropping my pan again and adding more new fluid. After my first pan drop a couple months ago I haven't noticed any negative effects. If anything, the TCC issue seems to be slightly less of a problem.
I would not see the point in flushing my tranny at all at this point. I'll just hope it holds up for another year/30,000 miles.
I am planning on dropping my pan again and adding more new fluid. After my first pan drop a couple months ago I haven't noticed any negative effects. If anything, the TCC issue seems to be slightly less of a problem.
I would not see the point in flushing my tranny at all at this point. I'll just hope it holds up for another year/30,000 miles.
#77
Administratus Emeritus
Certified Car Nut
Originally Posted by Rogue
I just change transmissions
My advice, if the trans has high miles but is functioning properly and you have never changed your fluid, leave it be until it goes. If you change your fluid at periodic intervels then you know what your fluid is like and how much material is in your pan eveyrtime you do it so it gives you an idea on how the trans is holding up.
My advice, if the trans has high miles but is functioning properly and you have never changed your fluid, leave it be until it goes. If you change your fluid at periodic intervels then you know what your fluid is like and how much material is in your pan eveyrtime you do it so it gives you an idea on how the trans is holding up.
Thread
Thread Starter
Forum
Replies
Last Post
willwren
Your Ride: GM Pictures & Videos
53
06-19-2007 11:25 AM