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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#87 of 99 Which ATF by bburton1 Jun 12, 2002 (10:29 am)
For what it is worth-had a couple of friends have major tranny problems after having their ATF changed at a quick oil change place-one used syn and don't know what the other used but both their DC mini vans tranny's died after less than 5K after the change. Be a pioneer if you feel brave but I would use the ATF in the owners manual. Nah Honda, GM, Ford and DC don't make ATF but they have engineers that design trannies and I would pay attention to their suggested ATF. DC ATF is real pricey but cheap compared to a new tranny.
#88 of 99 ATF Fluid color by bburton1 Jun 12, 2002 (10:31 am)
Had a CEL come on with a tranny code 70K on a 97 accord-check the ATF and it was dark and smelled burnt. Changed the ATF every 30K now and at 134K and no more CEL and no tranny problems. I suggest changing every 30K-the Honda owners manual says change at 90K except in extreme conditions. I do all highway driving and thought this would not cause the ATF to over heat-wrong.
#89 of 99 I tried synthetic tranny fluid by wtd Jun 12, 2002 (6:57 pm)
in my 98 chevy truck and started to get some slippage so I switched back to conventional fluid.
#90 of 99 Interesting by armtdm Jun 13, 2002 (5:08 am)
I have used synthetic ATF in a Chev Corsica, Isuzu Rodeo, Toyota Camry, Mercury Mystique, Buick Regal and change every 30,000. Camry has 145,000. No transmission problems on any of them. Who knows, could be luck.
#91 of 99 How do you change fluid in the Mistique? by irishalchemist Jun 13, 2002 (6:29 am)
armtdm, how do you change fluid in the Mistique? If it was a 4 cyl., it had the CD4E, with no pan, no drain plug, no nothing... G.
#92 of 99 1996 Mystique by armtdm Jun 13, 2002 (9:37 am)
4 cyl Zetec engine. Yes, it has a drain plug just back of mid center on the vertical transmission housing. There is no pan but the tranny has a drain plug. Done it several times now. Gets about 3.4-4 quarts out.
#93 of 99 armtdm, thanks for the info... by irishalchemist Jun 13, 2002 (10:49 am)
armtdm, I checked, and your Mystique has the same tranny my 626 has. I'll jack up the car this weekend and check for the drain plug where you mentioned. Hopefully there is one in mine too, but maybe it was an improvement from 95 to 96 and mine will lack it (I'm a strong believer in Murphy's laws...). I'm getting 2.5-3 quarts through the dipstick, but it would be nicer to let it drain to remove all the crud out... G.
#94 of 99 transmission fluid by bryand21 Jul 08, 2002 (8:05 pm)
I have a 1995 GMC Jimmy with 157,000 miles. I had the transmission fluid checked and it looked REALLY dirty. However, the truck is running fine, no slipping, no leaks or hesitation that I can tell. You want believe this, but I can't remember ever having the transmission fluid completely flushed, only drained from the pan and a new filter and I can't remember when that was done. Bad memory!! Can I have the whole system flushed with new fluid or will this start to cause problems since I have so many miles on the truck and the fact I can't remember when anything was done to the trans fluid? Please Advise!!!!!
#95 of 99 Drain and fill by armtdm Jul 09, 2002 (5:00 am)
I would do at least two drain and fills maybe 100 miles apart. the flush may be too stressful and cause problems at this stage
#96 of 99 Tranny flush by bburton1 Jul 09, 2002 (7:44 am)
I saw a ad for a commercial tranny flush system and they sold the flusing fluid for so much per 5 gallon container. Wonder how much of that "solvent" remains behind. Also what does it do to the clutches and seals in trannies. Think it is probably a very risky operation. Several people I know have said to completely change the ATF, disconnect the ATF line to the ATF cooler and divert it with a flexible tube to a large clear container, start the engine and fill at the same rate as the drain container fills. Sounds like a keystone cops maneuver but it might work.

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