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1990 legacy has hard time shifting to second


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13 replies to this topic

#1 Justcarolynn

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Posted 18 June 2014 - 02:46 PM

It will shift to second after I bring it up to 5k rpms, but it doesn't like to at all! The check engine light is on. Could that just be a sensor? All other gears shift perfectly!

#2 heartless

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Posted 18 June 2014 - 07:26 PM

You need to find out what the code is...

 

directions for retreiving codes here: http://legacycentral...ature/codes.htm



#3 Justcarolynn

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Posted 18 June 2014 - 08:31 PM

The light won't stay on long enough to have it read.

#4 Justcarolynn

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Posted 18 June 2014 - 08:34 PM

Ok cancel that comment lol... Didn't know you could do it without a computer

#5 heartless

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Posted 19 June 2014 - 06:25 AM

1990 thru 1994 are what is referred to as OBD-I and have to be done the old school way as described in the link above.

 

and it doesnt matter if the light is still on or not, if it has been on - even briefly - the code will be stored in the computer's memory.

this is true for both the OBD-I (what yours is) and OBD-II (for Subaru: 1995 and up)

 

Find out what code it has stored and post it here so we can provide better assistance.



#6 Fairtax4me

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Posted 19 June 2014 - 10:53 AM

What's the fluid condition? New? Old? Burned? Low?

Engine problems can cause high shift points. When was the last tune-up? Does the engine run rough or feel shaky?

#7 grossgary

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Posted 19 June 2014 - 12:55 PM

whatever is triggering the engine code is likely to be confusing or compromising the transmission. 

 

fix the engine code first, or at least read it.

 

those early legacies also have a problem with clogged ATF cooler lines...i think in the radiator.  There was a Subaru recall or part offered for them I believe. Look into that issue or bypass the radiator cooler and install an auxilliary cooler.



#8 Justcarolynn

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Posted 19 June 2014 - 04:45 PM

What's the fluid condition? New? Old? Burned? Low?
Engine problems can cause high shift points. When was the last tune-up? Does the engine run rough or feel shaky?


I just bought the car the other day. Like an idiot I didn't do to much test driving cuz it was from a "friend". Some friend huh. I will go read codes today and see what I come up with.

#9 Justcarolynn

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Posted 19 June 2014 - 04:46 PM

The tranny has recently been flushed as has everything else

#10 Justcarolynn

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Posted 20 June 2014 - 12:15 PM

So the only codes I got was the knock sensor and the canister purge solenoid valve... Neither of which has to do with the tranny from what I understand...

#11 Justcarolynn

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Posted 26 June 2014 - 03:47 PM

So I guess no one has any suggestions??

#12 heartless

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Posted 26 June 2014 - 06:31 PM

knock sensor is a fairly common one and will cause drivability issues - not real sure about it affecting the tranny shifting, but I suppose it is possible.

 

are you sure the transmission fluid is at the correct level? low fluid levels can casuse shift problems

these can be a bit of a pain to get a good reading on.

must be fully warmed up (drive it around for 10-15 mins - shift manually if you need to, you wont hurt it by doing that)

park on a level surface, leave the car running & check the level - may need to pull the dipstick, wipe clean, and replace 2 or three times to get a really good idea of where it is actually reading at.



#13 Justcarolynn

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Posted 29 June 2014 - 11:15 PM

knock sensor is a fairly common one and will cause drivability issues - not real sure about it affecting the tranny shifting, but I suppose it is possible.

 

are you sure the transmission fluid is at the correct level? low fluid levels can casuse shift problems

these can be a bit of a pain to get a good reading on.

must be fully warmed up (drive it around for 10-15 mins - shift manually if you need to, you wont hurt it by doing that)

park on a level surface, leave the car running & check the level - may need to pull the dipstick, wipe clean, and replace 2 or three times to get a really good idea of where it is actually reading at.

I made sure the levels were good. It worked just fine and decided to have an outing with the bf yesterday up the side of a mountain (yes paved, actual road) but a lot of down shifting. He took it half a mile to the store... Everything was fine. I got in it an hour later to go to work.. Would not go over 20 mph revved up to 7k. Changed the knock sensor. Check engine light went out. YAY. Read the tranny codes after I figured out how and its throwing the duty c.... But everything I see says this won't be an issue of shifting. My parts store didn't have Chiltons  :angry:  nor could I find anything out about the "atf filter" that is mounted on the radiator. But everything is pointing me in the direction that its that filter that is probably clogged causing a lack of fluid to the tranny. Can I bypass that some how??



#14 Justcarolynn

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Posted 02 July 2014 - 03:08 PM

Just to update... Tranny fluid now mixing with diff fluid. Tranny is toast :-( thanks for the help guys




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