* No-Reverse Solution For GM Transmission *

Originally Posted by spugeddy

Took it for a test drive and it did not immediately shift into Reverse. Drove it around for about 5 minutes and it shifted into Reverse about 5 times in a row.

Clear evidence this is the solenoid. You are in luck! (sort of)

YOU ARE THE MAN! omg im so lucky i found this post today, i was going to buy a new tranny Saturday i even spoke with the guy and gave me a nice deal lol, i just service my tranny: new fluid, new gasket, new solenoid and 1 Lucas stop slip just in case and my tranny is shifting like brand new! thanks for the advice

Originally Posted by PaulPaimE46

YOU ARE THE MAN! omg im so lucky i found this post today, i was going to buy a new tranny Saturday i even spoke with the guy and gave me a nice deal lol, i just service my tranny: new fluid, new gasket, new solenoid and 1 Lucas stop slip just in case and my tranny is shifting like brand new! thanks for the advice

I would have3 left out the stop slip but that is just me. The transmission engineers probably have a good idea of what should go in there. You don't know how that snake oil affects the valves ect.

Originally Posted by wildcat293

Clear evidence this is the solenoid. You are in luck! (sort of)

After the ATF fluid change only, shifting has worked for a month....

I have a 2000 ( manufacture date of 09/99) E46 323iT. I just hit 115,000 miles. I got my car back from the dealer last Monday. I had taken it in for the no reverse problem and the dealer "suggested" replacing the solenoid as a "possible" fix. The problem I had been experiencing was sometimes reverse acts like a second neutral. But after I drive for like 10 minutes or so in Drive, reverse works again. What the heck?

Anyway, This happened again (*&^%$#@) last night even though it went into reverse several times just fine earlier yesterday.

Just looked at the Dealer receipt. They replaced three Solenoid valve on/o all with part # 24337504753 - and filter & fluid - DEALER DID replace the 24327532013 Pressure regulator,convert.lockup clutch.

Problem remains... apparently this same problem would exist with sticking values as well - the dealer tells me. Sweet!

Still goes into reverse when warm everytime.

Originally Posted by wildcat293

Clear evidence this is the solenoid. You are in luck! (sort of)

After two solid months, and at least 4,000 miles, the reverse failed me for the first time since the fluid and filter change.

Drove 40 minutes this morning... went to park... backed in as habit "just in case". wouldn't not engage.

Left work 9 hrs later, did not engage reverse from cold start. Drover 45 minutes... then it worked three times in a row so far....

I have the solenoid in hand and will probably do that along with another fluid and filter of course.

Just had the one hiccup after the trans oil/filter change....went 4,000 miles without fail until last week. I have the solenoid and the oil/filter to change, but I might wait a little longer to see how long it will go....

Originally Posted by spugeddy

Just had the one hiccup after the trans oil/filter change....went 4,000 miles without fail until last week. I have the solenoid and the oil/filter to change, but I might wait a little longer to see how long it will go....

happened one more time in about a two week period.... so I installed the TCC solenoid today and filter and 5 1/2 qts of new fluid.

SPend about 2 1/2 hours... took my time, and test drive went great... shifted 3 x into reverse no probelm... going to have to drive for a month or so before i am convinced this did anything though.

The 4,000 mile fluid was surprising red... not bright red, but decent.

At least I have 2/3 new oil in there now.

Lastly, while on jack stands, and after refill, shifting through the gears... I got a strong thunk! going into reverse about every other time... P_R_N_D_ 5 times pausing 5 seconds between shifts... it would give a strong clunk going into reverse. On the test drive it didn't replicate this thank God.


****EDIT I forgot to mention the business end of the old solenoid looked damaged... there was a half of what looked like a screen missing, and inside it was warped looking... I guess the missing parts were floating around the valve body....

Originally Posted by 323guy

I have a 2000 ( manufacture date of 09/99) E46 323iT. I just hit 115,000 miles. I got my car back from the dealer last Monday. I had taken it in for the no reverse problem and the dealer "suggested" replacing the solenoid as a "possible" fix. The problem I had been experiencing was sometimes reverse acts like a second neutral. But after I drive for like 10 minutes or so in Drive, reverse works again. What the heck?

Anyway, This happened again (*&^%$#@) last night even though it went into reverse several times just fine earlier yesterday.

Just looked at the Dealer receipt. They replaced three Solenoid valve on/o all with part # 24337504753 - and filter & fluid - DEALER DID replace the 24327532013 Pressure regulator,convert.lockup clutch.

Problem remains... apparently this same problem would exist with sticking values as well - the dealer tells me. Sweet!

Still goes into reverse when warm every time.

well its been going into reverse when cold now. It did give me problems twice last week after driving 15 minutes... this never happened before. I am going to replace the fluid & fluid myself once the weather improves here. I need to search this site cause I remember coming across a DIY posting where the guy flushed the entire system by pulling a line going to the cooler I think.

323guy,

I thought the 323's have the ZF transmission? Guess it depends on build date...Solenoid fix is for the GM's.

But, if you do have the GM, I would say the solenoid being replaced and you still have the symptoms is not a good sign for me or for you.... I think options are new valve body/ cleaned valve body,,,

I think if after replacing my solenoid, if I still get the reverse failure, I am probably going to shift it, as they say on Wheeler Dealers, and get a different car.

Just got this problem today on a 2000 323 Ci....thankfully my car as built in 08/99 so i'm hoping its just this solenoid.

I pushed it out of the spot and drove around for only 2-3min and no luck getting in into reverse after...i might just take it out on the freeway for a day and see if it works after that trip.

We'll see keep your fingers crossed for me!

failed after 7 days of solenoid replacement... drove 40 minutes to work, would not engage as I tried to back in to parking spot.

Thinking the old solenoid was damaged at the tip and part of that plastic is loose and lodged in the bore. I tried to do a finger sweep technique with the old solenoid out but didn't feel anything...I will try to snap a pic of the old solenoid and see what you guys think

Originally Posted by spugeddy

failed after 7 days of solenoid replacement... drove 40 minutes to work, would not engage as I tried to back in to parking spot.

Thinking the old solenoid was damaged at the tip and part of that plastic is loose and lodged in the bore. I tried to do a finger sweep technique with the old solenoid out but didn't feel anything...I will try to snap a pic of the old solenoid and see what you guys think

yours sounds more like a leak if the problem goes away when you top off fliud

check the cooler lines and the heat exchanger

Worked for me. 2000 e46 built in 7/99 GM tranny.

Does this part only control the pressure of the reverse gear ?

Originally Posted by dodo34

Does this part only control the pressure of the reverse gear ?

I had it affect forward and reverse, however most people see it affect reverse only.

Originally Posted by spugeddy

323guy,

I thought the 323's have the ZF transmission? Guess it depends on build date...Solenoid fix is for the GM's.

But, if you do have the GM, I would say the solenoid being replaced and you still have the symptoms is not a good sign for me or for you.... I think options are new valve body/ cleaned valve body,,,

I think if after replacing my solenoid, if I still get the reverse failure, I am probably going to shift it, as they say on Wheeler Dealers, and get a different car.

Yes my 9/99 build date has the GM tranny... according to the BMW dealer whom replaced all the solenoids in my tranny. Actually while I did experience probably 6 total no-reverse problems in April and May I haven't had an occurrence since.....and I am aware how often I use reverse these days...a lot everyday. This was the solution for me.

Read through this whole thread... Didn't see anyone that has posted a good source for rebuilt Valve Bodies...

I haven't personally used this service, but this looks very promising:
http://europeantransmissionscom.x-sh...cat=699&page=1

If its time to repair the GM tranny what type/spec fluid is recommended today? Thanks
cs

Originally Posted by csjr28

If its time to repair the GM tranny what type/spec fluid is recommended today? Thanks
cs

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