Trans tune up
Thread Starter
Navigator
Joined: Jun 2004
Posts: 9
Likes: 0
From: Prairieville LA
Trans tune up
Good morning Corvette people. I have a small question that I know you know the answer too. I have just turned 175,000 on my 94 vette. I think it may be time to do a trans tuneup on it. There is no problem that I am aware of, but I figure with that many miles it may not be a bad idea to change the fluid and filter in it. I have seen several things thru out the years on this subject but did not really pay that much attention to them. It seems to me that heard to be sure to not let anyone use pressure to blow out the old fluid and clean the lines because it could cause a seal problem. Any info or good advise will be greatly apprecated.
Thanks,
Dennisvet
Thanks,
Dennisvet
Last edited by dennisvet; Mar 15, 2005 at 10:01 AM.
Instructor
Joined: Jan 2005
Posts: 141
Likes: 0
From: Tucson AZ
Change out the fluid by the pumping method. It removes all of the resident old fluid. It doesn't pump so hard that it will cause damage. Change the filter and pan gasket. Check/reset the throttle valve.
You might want to throw in a bottle of some kind of magic elixir such as Lucas or Trans-x since it's got mucho miles on it. I did that (half quart each) to my 85 trans and it has an excellent personality now.
You might want to throw in a bottle of some kind of magic elixir such as Lucas or Trans-x since it's got mucho miles on it. I did that (half quart each) to my 85 trans and it has an excellent personality now.
Team Owner
Joined: Oct 2000
Posts: 44,773
Likes: 1
From: 63.8% of all statistics are made up on the spot.
St. Jude Donor '08-'10
If the fluid has not been changed regularly you may want to consider not messing with it. There have been many cases in which right after a fluid change and power flush the whole tranny gives up the ghost. Several members on this board had that happen about 3 years ago.
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
I recal those threads too. I had the fluid flushed on my 92 in May of 03 with 35K on the clock. I immediately noticed a difference in upshifts being not quite as positive. The tranny shifts fine, but not as firm. I paid a little over $160 for a flush, filter and fluid.At 175K I would not worry about it. A filter change might be a good thing to do, but just do a filter and replace the fluid lost when the pan is removed. The 700R4 (4L60E) trannys are good, but given the mileage, if it's going to go out sooner or later, I would probably not spend money until the trans needs major work or replacement.
Le Mans Master
Joined: Feb 2002
Posts: 7,858
Likes: 2
I cannot take credit for the below, I pulled it off another member's reply once on a similar topic, might have been Nathon Plemmons maybe (?), not sure. Anyhow, here's one way to flush the trans fluid:
-------------------------------
How to flush transmission fluid 700R4/4L60/4L60E
1) remove the top tranny coolant hose.
2) attach a piece of rubber tubing long enough to reach into a 5 gallon bucket. use a clamp to hold the hose to the tube.
3) insert funnel into fill tube.
4) start car and let fluid pump into bucket
5) whilst running pour fluid into funnel.
6) watch the flow, get several quarts through.
7) once it starts to run new looking, then shut of the engine, reattach the hose and refill to level. drive to op temp and recheck level.
That will clear all the old fluid out of your tranny and replace it with new.
-------------------------------
-------------------------------
How to flush transmission fluid 700R4/4L60/4L60E
1) remove the top tranny coolant hose.
2) attach a piece of rubber tubing long enough to reach into a 5 gallon bucket. use a clamp to hold the hose to the tube.
3) insert funnel into fill tube.
4) start car and let fluid pump into bucket
5) whilst running pour fluid into funnel.
6) watch the flow, get several quarts through.
7) once it starts to run new looking, then shut of the engine, reattach the hose and refill to level. drive to op temp and recheck level.
That will clear all the old fluid out of your tranny and replace it with new.
-------------------------------
Burning Brakes
Joined: Dec 2003
Posts: 1,183
Likes: 1
From: MidOhio
Originally Posted by Lone Ranger
I cannot take credit for the below, I pulled it off another member's reply once on a similar topic, might have been Nathon Plemmons maybe (?), not sure. Anyhow, here's one way to flush the trans fluid:
-------------------------------
How to flush transmission fluid 700R4/4L60/4L60E
1) remove the top tranny coolant hose.
2) attach a piece of rubber tubing long enough to reach into a 5 gallon bucket. use a clamp to hold the hose to the tube.
3) insert funnel into fill tube.
4) start car and let fluid pump into bucket
5) whilst running pour fluid into funnel.
6) watch the flow, get several quarts through.
7) once it starts to run new looking, then shut of the engine, reattach the hose and refill to level. drive to op temp and recheck level.
That will clear all the old fluid out of your tranny and replace it with new.
-------------------------------
-------------------------------
How to flush transmission fluid 700R4/4L60/4L60E
1) remove the top tranny coolant hose.
2) attach a piece of rubber tubing long enough to reach into a 5 gallon bucket. use a clamp to hold the hose to the tube.
3) insert funnel into fill tube.
4) start car and let fluid pump into bucket
5) whilst running pour fluid into funnel.
6) watch the flow, get several quarts through.
7) once it starts to run new looking, then shut of the engine, reattach the hose and refill to level. drive to op temp and recheck level.
That will clear all the old fluid out of your tranny and replace it with new.
-------------------------------
Burning Brakes
Joined: Dec 2003
Posts: 1,183
Likes: 1
From: MidOhio
Originally Posted by Lone Ranger
I cannot take credit for the below, I pulled it off another member's reply once on a similar topic, might have been Nathon Plemmons maybe (?), not sure. Anyhow, here's one way to flush the trans fluid:
-------------------------------
How to flush transmission fluid 700R4/4L60/4L60E
1) remove the top tranny coolant hose.
2) attach a piece of rubber tubing long enough to reach into a 5 gallon bucket. use a clamp to hold the hose to the tube.
3) insert funnel into fill tube.
4) start car and let fluid pump into bucket
5) whilst running pour fluid into funnel.
6) watch the flow, get several quarts through.
7) once it starts to run new looking, then shut of the engine, reattach the hose and refill to level. drive to op temp and recheck level.
That will clear all the old fluid out of your tranny and replace it with new.
-------------------------------
-------------------------------
How to flush transmission fluid 700R4/4L60/4L60E
1) remove the top tranny coolant hose.
2) attach a piece of rubber tubing long enough to reach into a 5 gallon bucket. use a clamp to hold the hose to the tube.
3) insert funnel into fill tube.
4) start car and let fluid pump into bucket
5) whilst running pour fluid into funnel.
6) watch the flow, get several quarts through.
7) once it starts to run new looking, then shut of the engine, reattach the hose and refill to level. drive to op temp and recheck level.
That will clear all the old fluid out of your tranny and replace it with new.
-------------------------------
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