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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 10-24-2009, 01:57 PM
BIMED BIMED is offline
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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...
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  #2  
Old 10-24-2009, 06:21 PM
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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.
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  #3  
Old 10-24-2009, 10:28 PM
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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!
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  #4  
Old 10-24-2009, 10:31 PM
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I bet 99.9% it is the catalytic converter. I had the same problem.
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  #5  
Old 10-24-2009, 10:43 PM
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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?
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  #6  
Old 10-24-2009, 11:13 PM
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Originally Posted by BIMED View Post
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.
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  #7  
Old 10-25-2009, 11:01 AM
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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?
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  #8  
Old 10-25-2009, 12:08 PM
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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.
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  #9  
Old 10-25-2009, 12:15 PM
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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.
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  #10  
Old 10-25-2009, 12:30 PM
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wow, when you replaced your cat did you use a single car or are you running dual cats.
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  #11  
Old 10-25-2009, 12:55 PM
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Originally Posted by Hairy325is View Post
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

Last edited by JohnMadd; 10-25-2009 at 01:04 PM.
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  #12  
Old 10-25-2009, 01:06 PM
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It works just fine with my I.E. catback.
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  #13  
Old 10-25-2009, 01:26 PM
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did you have to use a collector down to one pipe.
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  #14  
Old 10-25-2009, 01:55 PM
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Nope.
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  #15  
Old 10-25-2009, 07:45 PM
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so does your manifold go down to one pipe because my does not it stays as two
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  #16  
Old 10-25-2009, 10:19 PM
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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.
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  #17  
Old 10-26-2009, 12:04 AM
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Quote:
Originally Posted by JohnMadd View Post
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
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  #18  
Old 10-26-2009, 12:26 AM
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yeh john the etas to 2 to one at the cat but dont the IS's go 2 all the way back
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  #19  
Old 10-26-2009, 01:10 AM
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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
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  #20  
Old 10-26-2009, 04:28 PM
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Quote:
Originally Posted by Ethrty View Post
or you look at yours. M20 should have twin pipes more or less the whole way back
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Originally Posted by noexceptions325 View Post
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.
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  #21  
Old 10-26-2009, 08:34 PM
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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.
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  #22  
Old 10-26-2009, 10:15 PM
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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.
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  #23  
Old 10-27-2009, 02:35 AM
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Quote:
Originally Posted by JohnMadd View Post
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
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  #24  
Old 10-27-2009, 01:59 PM
BIMED BIMED is offline
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hey john,

how much should I be expecting when I take my e30 for a cat replacement?
thanks
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  #25  
Old 10-27-2009, 10:06 PM
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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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