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  #191  
Old 01-02-2019, 06:13 PM
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I have checked the fluid level which was fine. The solenoid replacement is a strong possibility. recently a nearby Indie mentioned the possibility after I described the symptoms, so I think I will give it a go, as otherwise its a great car! Question for Mike which is the TCC solenoid on the valvebody pics?

Thank you both for the help.
Jim
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  #192  
Old 01-02-2019, 06:18 PM
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Quote:
Originally Posted by JimG View Post
I have checked the fluid level which was fine. The solenoid replacement is a strong possibility. recently a nearby Indie mentioned the possibility after I described the symptoms, so I think I will give it a go, as otherwise its a great car! Question for Mike which is the TCC solenoid on the valvebody pics?

Thank you both for the help.
Jim
Hi JimG

I think this image may help you and they may be #3 and #4



Another image that I have in my archive suggests that the TCC solenoid is #4.

For the price, and if you are planning to keep the vehicle for a long time, I would suggest replacing both of the solenoids

I will also offer that I have used AMSOIL Full Synthetic ATF in my E53/4.4i since 80K miles and now 113K miles with perfect performance and in my E46/330Xi as well from 80K to now 132K miles with similar results.

https://www.amsoil.com/shop/by-produ...EA/?zo=1173195

Mike
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Last edited by semcoinc; 01-02-2019 at 06:30 PM.
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  #193  
Old 04-20-2019, 09:55 AM
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What does the original post mean that the torque converter be replaced without pulling the transmission?
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  #194  
Old 04-20-2019, 10:04 AM
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That's without OPENING transmission.
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  #195  
Old 06-23-2019, 04:36 AM
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Hi!
I'm having a odd issue with my e53 3.0d 01 BMW.


When cruising on the highway, at 100+ kph, the car will raise around 200 rpm from time to time. Especially if the is a small incline. There is no other noise or vibration during this.

I'm thinking atm. that the lockup solenoid might have lived out its life, but i thought i would ask you guys out when im planning of removing the pan anyway.

Fresh oil, with less than a 1000 km, and topped of per, instuctions.


Any thoughts?

Last edited by Thelittlefatguy; 06-23-2019 at 05:01 AM.
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  #196  
Old 06-23-2019, 04:41 AM
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Originally Posted by Thelittlefatguy View Post
Hi!
I'm having a odd issue with my e53 3.0d 01 BMW.


When cruising on the highway, at 100+ kph, the car will raise around 200 rpm from time to time. Especially if the is a small incline. There is no other noise or vibration during this.

I'm thinking atm. that the lockup solenoid might have lived out its life, but i thought i would ask you guys out when im planning of the pan anyway.

Fresh oil, with less than a 1000 km, and topped of per, instuctions.


Any thoughts?


Should throw a code of its locking/unlocking like that at cruise for no reason.



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  #197  
Old 06-23-2019, 05:13 AM
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Hi. Thanks for the reply.

My thought initially. But I dont know what would trigger trans. Failsafe, Im not an expert on automatics in general, but understand them on a basic level.

Another question.
How is the solenoid triggered?
If the solenoid is triggered by 12v, or ground for that matter. How sensetive is the solenoid for a possible voltage drop?, say if the 12v supply has been slighty damaged? Maybe 5v, but you get the idea.

Battery is brand new, and car starts up with no issue, even when it has been sitting for 2 weeks, when im travling at work
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  #198  
Old 06-23-2019, 06:04 AM
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Quote:
Originally Posted by Thelittlefatguy View Post
Hi. Thanks for the reply.



My thought initially. But I dont know what would trigger trans. Failsafe, Im not an expert on automatics in general, but understand them on a basic level.



Another question.

How is the solenoid triggered?

If the solenoid is triggered by 12v, or ground for that matter. How sensetive is the solenoid for a possible voltage drop?, say if the 12v supply has been slighty damaged? Maybe 5v, but you get the idea.



Battery is brand new, and car starts up with no issue, even when it has been sitting for 2 weeks, when im travling at work


It may not give you fail safe.
I had my valve body rebuilt on my 6HP tranny. They said the solenoid and the pressure regulator cylinder bore was all worn out.
It would throw a code for TC stuck open and closed. What would happen is if accelerate and the TC wouldn't unlock on command. It would throw a Service light and the code from the TCM was torque converter stuck open and close.

Some times it would do it. And it notice the higher rpm cruising and it would not give a service light on the dash. Then later in the day, it would appear.

So I'd say you should 100% have a code, at least with the TCM.
I don't know the solenoid voltage but they seem to go bad all the time. If it's just a lazy slow reacting solenoid. Maybe you won't have a hard code?


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  #199  
Old 06-23-2019, 02:35 PM
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If it is a transmission problem our resident expert is RRPHIL. If he doesn't provide input you could PM him.
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  #200  
Old 08-08-2019, 06:49 AM
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03 4.4 transmission issues

I drive a 2003 x5 4.4. My rpm started bouncing a tiny bit in 3-5 gear when it is above 2000 rpm not as much in higher rpm but it happens. It will also go into transmission fail safe mode at some point while driving it. Is this the torque converter? It shifts smoothly and downshifts smoothly.
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