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-   -   89 E30 transmission problem (http://www.bimmerfest.com/forums/showthread.php?t=407441)

BIMED 10-24-2009 12:57 PM

89 E30 transmission problem
 
hey guys,

A good friend of mine recently gifted me a 89 E30 with 165K miles. the body and interior is in a great condition besides typical wear and tear that comes with 20 years old age. however, the automatic transmission hangs in the first gear when i start the car in the morning until the car had the time to warm up and the abruptly it shifts into 2nd and higher gears. Once the car is warmed up the gear shifts fine but I am wondering if its something I can take it to a shop and easily fix or something that will require a entire replacement of the transmission.

Thanks guys in advance...

Hairy325is 10-24-2009 05:21 PM

i would fist check the fluid and the filter, it sounds like the fluid is not the correct viscosity and as it warms up it works good same as filter could be very dirty.

BIMED 10-24-2009 09:28 PM

ahh.... I took the car to EZ lube for major fluid exchange which included transaxel fluid drainage and refill. I hope they did their job so that only leaves the filter. I will have to have a mechanic take a look and see if it need replacement. How much should I be expecting for such replacement?

thanks for the reply!

JohnMadd 10-24-2009 09:31 PM

I bet 99.9% it is the catalytic converter. I had the same problem.

BIMED 10-24-2009 09:43 PM

catalytic converter? damn those are pretty costly to replace no?
Did replacing the catalytic converter immediately fix your problem? also when I start the car the car idles up and down and up and down... it hiccups. did you also have this problem as well?

JohnMadd 10-24-2009 10:13 PM

Quote:

Originally Posted by BIMED (Post 4627158)
catalytic converter? damn those are pretty costly to replace no?
Did replacing the catalytic converter immediately fix your problem? also when I start the car the car idles up and down and up and down... it hiccups. did you also have this problem as well?

Yes it fixed it immediately. Those are seperate problems.

BIMED 10-25-2009 10:01 AM

hey john,
did you end up replacing the entire assembly (the pipe line and all that) or did you end up replacing and welding in the cat converter?

JohnMadd 10-25-2009 11:08 AM

I had it cut out and a new one welded in. The BMW oem one is like 600$ or 700$ and one from autozone or advance is like 150$ and has worked great for me for over 2 years.

JohnMadd 10-25-2009 11:15 AM

You can probably check if it is you cat causing this problem by taking your exhaust off while your car is cold and then drive it and see if it shifts right. I spent lots of time and money trying to fix this problem before I figured out it was my cat. I think this test may be able to confirm it for you, because I know most people would never think this would be a part that would make a transmission shift like that.

Hairy325is 10-25-2009 11:30 AM

wow, when you replaced your cat did you use a single car or are you running dual cats.

JohnMadd 10-25-2009 11:55 AM

Quote:

Originally Posted by Hairy325is (Post 4627933)
wow, when you replaced your cat did you use a single car or are you running dual cats.

single in dual out. This is the one-http://www.autozone.com/autozone/cat...questid=987692

JohnMadd 10-25-2009 12:06 PM

It works just fine with my I.E. catback.

Hairy325is 10-25-2009 12:26 PM

did you have to use a collector down to one pipe.

JohnMadd 10-25-2009 12:55 PM

Nope.

Hairy325is 10-25-2009 06:45 PM

so does your manifold go down to one pipe because my does not it stays as two

JohnMadd 10-25-2009 09:19 PM

Quote:

Originally Posted by Hairy325is (Post 4628733)
so does your manifold go down to one pipe because my does not it stays as two

You might want to take a better look at your exhaust.

_Ethrty-Andy_ 10-25-2009 11:04 PM

Quote:

Originally Posted by JohnMadd (Post 4629046)
You might want to take a better look at your exhaust.

or you look at yours. M20 should have twin pipes more or less the whole way back

noexceptions325 10-25-2009 11:26 PM

yeh john the etas to 2 to one at the cat but dont the IS's go 2 all the way back

_Ethrty-Andy_ 10-26-2009 12:10 AM

Quote:

Originally Posted by noexceptions325 (Post 4629224)
yeh john the etas to 2 to one at the cat but dont the IS's go 2 all the way back

well mine is 6 into 2 all the way to ct where it is wider and single, and then when it exits the cat it goes back into 2 down to the 318i muffler where it goes back into 1 and exits as one (and then through my tip into 2 but you cant count that haha

JohnMadd 10-26-2009 03:28 PM

Quote:

Originally Posted by Ethrty (Post 4629201)
or you look at yours. M20 should have twin pipes more or less the whole way back

Quote:

Originally Posted by noexceptions325 (Post 4629224)
yeh john the etas to 2 to one at the cat but dont the IS's go 2 all the way back

I'm sorry, it really isnt that noticeable but the front end of the converter actually merges into 1. Two pipes down to the cat change to 1 at the cat and back to 2 out and to the muffler.

Hairy325is 10-26-2009 07:34 PM

just looked at my exhaust again and its two all the way back, i am sure due to the fact the i have removed the entire system and it sits on my garage floor right now it is definitely two into the cat.

JohnMadd 10-26-2009 09:15 PM

If it is 2 all the way back then the catalytic converter would have two seperate and isolated pipes and chambers. That would include dual catalytic converters I would think. 1 CAT=1 pipe.

_Ethrty-Andy_ 10-27-2009 01:35 AM

Quote:

Originally Posted by JohnMadd (Post 4631943)
If it is 2 all the way back then the catalytic converter would have two seperate and isolated pipes and chambers. That would include dual catalytic converters I would think. 1 CAT=1 pipe.

you can get twin in twin out cats

BIMED 10-27-2009 12:59 PM

hey john,

how much should I be expecting when I take my e30 for a cat replacement?
thanks

JohnMadd 10-27-2009 09:06 PM

Quote:

Originally Posted by BIMED (Post 4633689)
hey john,

how much should I be expecting when I take my e30 for a cat replacement?
thanks

I would like to say the cool thing....You should be able to get it done for 30$, simple cut and weld...But the the fact is it is 80 to 100 bucks for 1 hour of labor at most shops. I would go to local meineke or similar shop and see what they will quote you, smaller local run shops will probably be cheaper.


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