Transmission fluid change-which method is better? - READ ONLY

99 messages, Last post on Jul 10, 2002 at 6:37 AM

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#70 of 99 it depends you'll have to drain it first then by gsleve May 25, 2002 (5:08 am)
pour contents into a gallon jug that'll tell you how much should go back into the tranny it may be just under 4qts or exactly 4qts or a little more be on the safe side I'd drain and pour contents into a gallon jug
#71 of 99 AT fluid by stans40 May 27, 2002 (11:14 am)
gsleve, thanks for the suggestion. I guess I didn't make myself clear. What I wanted to know was the total amount of AT fluid in the transmission so when I drain it, I will know what percent of the total I have removed.
#72 of 99 Here is what I do. by wtd May 28, 2002 (7:23 pm)
My 98 chevy ext-cab Z-71 truck has a tranny pan with drain plug. After changing the fluid & filter at about 20,000 miles for the first time, I just drain and refill about every 4 or 5,000 miles and keep fresh tranny fluid in it at all times. This may be overkill, but I want this tranny to last as long as possible. Plus a drain and refill only let out a little less than 3 quarts so doing it this way is probably best for this tranny.
#73 of 99 usually it is about half meaning that the torque by gsleve May 31, 2002 (5:21 am)
converter holds an equal amout as the transmission therefore when you drain the tranny you've drained 50% of the total capacity of AT fluid both tranny and converter you could also go to Autzones website look up capacity and they will give you the total however you'll have to subtract what had come from the tranny
#74 of 99 wtd by armtdm Jun 03, 2002 (6:15 pm)
4 or 5000 miles. That truly is overkill. Hope you have a drain valve and not a plug as often as you do it.
#75 of 99 armtdm by wtd Jun 04, 2002 (1:51 pm)
As I stated before, it may be overkill, but I want to try to make this tranny last. I had this exact same transmission in my previous truck and it had to be replaced at around 36,000 miles and I changed fluid and filter in it every 15,000 miles. The 4L60E tranny is not very strong for a truck application plus when you use it to tow with. These trannys also have a problem with wearing out one of the bores for one of the shift solinoids in the valve body. Maybe by keeping fresh fluid in it, this problem will show up later, not sooner. I can tell when the fluid starts getting close to needing changed because I get more torque converter vibration. As soon as I change it, the vibration goes away for awhile. The 4L60E holds approximately 11 quarts of fluid. a fluid and filter change only gets out about 5 quarts. A fluid change only, gets out less than 3 quarts. As for the taking the drain plug out as often as I do, how is it any different than taking my drain plug out of my oil pan every 3,000 miles when I do an oil change? I've never wore out the threads in my oil pans at this interval. If by chance I do wear out my tranny pans threads, I'll just buy another one for $40 at my local dealership. I do alot of stop and go driving and tow occasionally with my truck. This is hard on the transmission. Even though I have a tranny cooler, it needs all the help it can get. Fluid is cheap and it doesn't take much time to do and I have the piece of mind knowing that I always have fresh transmission fluid. Wayne
#76 of 99 Tranny Changes by mcalcankiller Jun 04, 2002 (3:55 pm)
I'm an old timer..........been servicing my own vehicles for years. It never seems to amaze me how many people I know never change the tranny fluid. I do mine every 2 yrs-same as the antifreeze flush. I do the pan + new filter + drain routine. Just a hint: my 1997 E150 has a drain for both the pan and torque convertor. It took over 10 qts to refill. Most of the Jap cars have a drain plug. I will drain the Toyota each year (3-4 qts) and the E150 each 2 yrs because I can get 90% out of the E150. Most USA cars have no drain plugs; nesessitating the addition of a drain plug after the 1st time I drain & change the filter. I'm a nut with fluid changes: Antifreeze, ATF, Rear Differential, Power steering, and brake fluid every 2 yrs. Engine oil: 3K + filter. Fram is junk. Use the Purolator or OEM. Fram went to Mexico yrs ago. When I switched to Purolator about 5 yrs ago I discovered both my /6 Chrysler and Toyota Minivan stopped clattering upon startup. The Frams had cheap valves. I use dino oil (Castrol or Valvoline).
#77 of 99 4L60E armtdm by joe3891 Jun 05, 2002 (8:19 am)
If your transmission is a 99-01 there is a up graded valve body to preclude TCC valve failure that will burn up a transmission. There is also a cheap fix,either change a spring or block the valve. If your tranmission starts to hard shift go for 1 of the repairs ASAP.
#78 of 99 by alcan Jun 05, 2002 (12:46 pm)
Or buy the improved valve and distribution sleeve from Transgo or Sonnax.
#79 of 99 Toyota Trans Changes by dwbehrens1 Jun 09, 2002 (6:22 pm)
I drain the trans fluid every 10K miles, getting out about one-third of it (2 to 2.5 quarts on Camrys and Corollas) using the drain plug on the trans pan. I change the oil at the same interval using Mobil 1. I change the oil filter when I change the oil and 5K later. I drop the trans pan every 50K to 60K and clean it and install a trans kit (new screen and gasket, $15 to $20 aftermarket). Dino oil for the trans. Synthetic oil for the engine, differential, and transfer case. I have had no drive train problems in over 450K miles with this regimen in Toyota cars and trucks for the last 16 years.

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