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subaru transmission problems

71 messages,  Last post on Sep 14, 2009 at 4:09 AM

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What is this discussion about? Subaru Forester, Transmission, Wagon

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#60 of 71 Re: replaced transmission fluid [reginas2] by xwesx May 15, 2009 (8:17 am)
Replying to: reginas2 (May 14, 2009 5:23 pm) What kind of fluid did he put in it? Did he put in enough? Are you able to select gears without trouble, but the car will simply not engage?
#61 of 71 Re: replaced transmission fluid [reginas2] by aatherton May 16, 2009 (5:05 pm)
Replying to: reginas2 (May 14, 2009 5:23 pm) "My husband just replaced the transmission fluid in my 07 forester. It will not shift gears. Why? "   It is not likely that he replaced all the fluid. If he drained and then refilled with the amount that came out, then 3.75 quarts was replaced out of the total capacity of 10 quarts. To replace all the fluid at one time requires flushing equipment that only a dealer or transmission shop has.   To function properly, the transmission requires one of the fluids listed on Page 11-21 of the Owners Manual, which states: "Genuine Subaru Automatic Transmission Fluid Type-HP. IDEMITSU ATF HP. Castrol Transmax J. If the recommended automatic transmission fluid is unavailable, Dexron III may be temporarily used. If the Dexron III is used continuously there will be a noticeable increase in the vibration and noise from the automatic transmission."   However, putting in 3.75 quarts of the wrong fluid would not prevent shifting of gears. But if for some reason the transmission is very low on fluid, that could affect shifting. Replies to this message: xwesx (May 17, 2009 11:41 am) wolfdoug (Jun 20, 2009 12:25 pm)
#62 of 71 Re: replaced transmission fluid [aatherton] by xwesx May 17, 2009 (11:41 am)
Replying to: aatherton (May 16, 2009 5:05 pm) if for some reason the transmission is very low on fluid, that could affect shifting.   That was my primary thought as well. Replies to this message: wolfdoug (Jun 20, 2009 12:25 pm)
#63 of 71 HARSH SHIFTING! by wolfdoug Jun 20, 2009 (12:19 pm)
I have a '99 Forester that I purchased recently. Lately I find that the automatic transmission has been shifting harshly (mostly from second to third) . The trans pulls fine and downshifts O.K. too. The car doesn't have this problem always - or maybe it's less times.   Any advice?
#64 of 71 Re: replaced transmission fluid [xwesx] by wolfdoug Jun 20, 2009 (12:25 pm)
Replying to: xwesx (May 17, 2009 11:41 am) The transmission is full, though I don't know when It was changed. Could old fliud do that? Also the owner's manual says to use Dextron III fluid but I see postings that say to use another type of fluid ( Castrol Transmax J ). Will that help?
#65 of 71 Subaru transmission won't shift by lonnys1 Jul 13, 2009 (11:21 am)
93 Subaru Impreza automatic transmission will not shift from 1st to 2nd when cold. Will shift fine when engine warms up. What could be causing this? Fluid level is fine and no leaks. Replies to this message: bigfrank3 (Jul 14, 2009 10:26 am) aatherton (Aug 19, 2009 6:24 am) bigfrank3 (Aug 19, 2009 9:22 am) and 1 more...
#66 of 71 Re: Subaru transmission won't shift [lonnys1] by bigfrank3 Jul 14, 2009 (10:26 am)
Replying to: lonnys1 (Jul 13, 2009 11:21 am) While not Subaru-specific my experience is that when this occurs it is because of the trans filter needing replacing. As the filter gets "used" and partially restrictive the hydraulic pressure to initiate the shift is lacking. As the fluid gets hot it flows better through the filter. In my opinion changing the fluid and filter would be a good first step. The key to it most likely not being something else is the fact that it works fine when warmed up. Replies to this message: aatherton (Aug 19, 2009 6:24 am) bigfrank3 (Aug 19, 2009 9:22 am) aatherton (Sep 14, 2009 4:09 am)
#67 of 71 transmission problem by frbock1 Aug 17, 2009 (2:25 pm)
Same thing happened to me at 105k. My 4 speed auto started making noise when shifting from 2nd to 3rd. The cure is to replace the transmission. 2004 Forester XT. Replies to this message: wolfdoug (Aug 17, 2009 2:40 pm)
#68 of 71 Re: transmission problem [frbock1] by wolfdoug Aug 17, 2009 (2:40 pm)
Replying to: frbock1 (Aug 17, 2009 2:25 pm) Mine's not making noise - just shifting a little hard (when cold,mostly). I will try a transmission service first. - Soon.
#69 of 71 Re: Subaru transmission won't shift [bigfrank3] by aatherton Aug 19, 2009 (6:24 am)
Replying to: bigfrank3 (Jul 14, 2009 10:26 am) "... this occurs it is because of the trans filter needing replacing. As the filter gets "used" and partially restrictive the hydraulic pressure to initiate the shift is lacking..."   This does not help his 2007 Forester, but Subaru eliminated the transmission filter on the 2008 models, beginning in mid-year 2007. For 2008 they blanked off the filter opening with a wide threaded plug, and for 2009 the opening was cast closed.   It does seem amazing that the transmission could generate enough debris to clog the big filter and affect shifting. Now there is no filtering at all. Since the AT filter was "lifetime", perhaps there is really too little stuff to be worth filtering, too little stuff to ever clog the filter, and no real need for the filter.   I guess between Jiffy Lube mistaking the AT filter for the oil filter, and the shifting problems you attribute to the AT filter, Subaru decided it only caused trouble. Replies to this message: bigfrank3 (Aug 19, 2009 9:22 am) aatherton (Sep 14, 2009 4:09 am)

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