Transmission only works in second

[Jenny Auckerman]

According to diagnostic tests and the shop manual it would appear that the 1-2 Solenoid inside the transmission of my 95 Aurora is stuck, clogged, broke or malfunctioning. Or at least that seems to be a good start. Does anybody know where this solenoid is located? The shop manual shows 3 soleniods inside the side cover of the transmission where the dipstick is but it calls them all the 3-4 soleniod. I can't find any reference to the location of the 1-2 Solenoid. Thanks.

[thumpin455]

Jenny, this link is to the "Classic Aurora Page"

http://members.fortunecity.com/zincster/index.html

go there, select "Edmunds" from their links on the sidebar, then go to "Oldsmobile Aurora Owners: Problems & Solutions" then read the messages posted over the last few days. Here's a cut & paste of message #1460 posted by Greg which pretty much sums up the problem you are having:

The part no. for this kit is 24211355. It has a note inside bag that says any trans before 4-6-96 must use all parts which includes 2 solenoids, bracket, filter, and bolt. I had already bought kit, because I heard other fellow aurorians had this problem. After dropping pan 3 times, I noticed that the original filter for my 95 did not have the bracket so I did not know where the bracket went and I left it out. When it didn't shift to 3rd, I looked at it again and noticed the new filter had popped out but it could only come so far because it would hit the solenoids. After further research on caddyinfo.com, I found out that bracket was used to hold new filter in place. I dropped pan and valve body again to place that bracket and lock that filter in place. It appears that pressure pushes the new filter out of its place and this blocks the second solenoid from operating. Since I have a scanner for my 95 it would give you a 29 code that says shift 'b' solenoid problem. GM must have added that bracket in for late 96 and up cars. My recommendations is if you have the 95, and do this job make sure you keep your bolts separate, about 35 are involved, get the step by step directions from caddyinfo.com. Since I did this thing 3 times in one week, I was able to complete it in 2.5 hrs, but it probably takes close to 4 the first time if I had known the purpose of the bracket with the kit. The kit was bought from GM Parts Direct.
Greg

[khalidjamal123]

Dear Thumpin455,
When You Did Your Solenoids Did You Drop The Side Oil Pan (where The Dip Stick Is) Or The Bottom Oil Pan? And If Possible Can You Please Send Me All The Steps In Which You Took To Make It Right?
Thanks.

[Sweet William]

khalidjamal123 How many times are you going to ask the same question?

The trans shop is giving you false info. Either they don't know how to work on the 4t80e trans, or they want to rip you off. What are the quoting for a price to do the job?

If you want to tackle the job here are the directions. They are from caddyinfo.com. I and a bunch of people from this site have used them to do the job. It's not a bad job other than the mess and getting the balls back in the right spot. I had never worked on a trans before and did it a couple of hours in my driveway. A
If you want a shop to do it at least you can be informed so you won't get ripped for big dollars.

a) drop the pan, and careful removing the tranny gasket, it is steel and re-usable. Once you clean the pan, you can reset it with gasket sealer.
c) disconnect the solenoid electrical connectors and the mechanical linkage. The linkage has a metal clip you lift and slide.
d) remove the valve body screws, and drop the valve body.
e) place the valve body where you can afford a mess, it will continually leak. Best thing is to set it on cardboard on a bench. There is a valve spool that can be removed as well, careful it can slip out, you don't want to damage it.
f) remove the two clips holding the solenoids, careful they are spring-loaded and will fly
g) remove the screws holding the "large" portion of the valve body split, this is where the solenoids are incased. Remember the screw locations, there are about four different screw lengths
h) CAREFULLY remove split, there are 4 steel check balls loose inside the split (about 1/4" diameter, they will roll away)
i) inspect spacer plate, if the black coating is not chipping off you can re-use it, otherwise plan on spending another $ 70 at the dealership parts house. If you replace it you will have to remove the "smaller" split, as well. It also has three check balls.
j) replace the solenoids
k) now comes the fun,....you will note three holes in the spacer plate where three of the check balls reside, seat them there (appr. 3/16" diameter with a smaller relief hole next to it, as I remember). The fourth check ball will need to be inserted in a spherically-cast cavity which is near one the solenoids. You can set it with grease, I re-assembled successfully without using grease.
l) re-assemble valve body, carefully and equally torque.
m) you will note a square black plastic item near one of the solenoids, on the end. Replace this plastic filter with the new filter in the solenoid kit. The kit will also come with an L-shaped bracket that is to be used to "capture" this filter and keep it from backing out. The kit also comes with a slightly longer screw used to mount the bracket to the valve body (discard the old screw).
m) re-assemble valve body to transmission, hook up linkage and electrical connectors
n) replace both tranny filters
o) replenish fluid
p) reset codes

[stkroegr]

Was this shift solenoid kit part #24211355 ever in a recall or is it just a modification?

Knock on wood - mine was just replaced Saturday - seems to have fixed my shift problem that arose after changing the ATF and filter.

[khalidjamal123]

Sorry for being so annoying.....but was just trying to check ...check and double check..(I would rather be safe than sorry) and again thanks for all the advice in advance. I will attempt to tackle the job my self some time next week
thank you

[khalidjamal123]

OK!!....Good news for all the Aurora owners who are trying to find out where the shift solenoids A & B are. Her are some diagrams and diagnostic info. Just click the following to go directly to my:
http://briefcase.yahoo.com/bc/khalid...ase.yahoo.com/


hope the info is useful.