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7 Series - E38 (1995 - 2001)

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  #1  
Old 03-13-2014, 12:17 PM
Mrlucas Mrlucas is offline
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Location: Kansas City
 
Join Date: Feb 2014
Posts: 39
Mein Auto: 2001 740I
Trans cooler temp normal range ?

Anyone know the normal operating temp range of the transmission oil cooler voltage reulator thingy? I have a feeling that my Cooler thermostat is not working or the unit is plugged. Cooler is extremely hot and lower portion of radiator is cool. That makes me think maybe it is not opening.

I will prevail on all these issues I swear

2001 740i Sport
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740i m sport 2000/01 - M62TU Vanos V8

Last edited by Mrlucas; 03-13-2014 at 08:01 PM.
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  #2  
Old 03-13-2014, 01:19 PM
Splitdog Splitdog is offline
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Location: Los Angeles
 
Join Date: Nov 2009
Posts: 89
Mein Auto: 2001 740iL
I had tranny issues. Mine had 160,000 on her and it would drop and stay in a lower gear. The trans was overheating. We opened her up to check the temp sensor and ended up just rebuilding her. Afterwards it drove great but still dropped a gear automatically. I dropped the cooler and the water side was completely clogged. With an aluminum-like sludge. I just bought a new one and installed it right away. Problem solved. Check those coolers!!!!
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Old 03-13-2014, 05:02 PM
Mrlucas Mrlucas is offline
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Location: Kansas City
 
Join Date: Feb 2014
Posts: 39
Mein Auto: 2001 740I
Heres to hoping that is plugged and not something worse. Shift great until that sucker gets hot as hell. Have not really been able to drive it as a result. Will pull it off tomorrow and see if it is clear. If not will clear it/ replace it then do a fluid drain filter and fill. After I get my handy dandy dipstick.
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740i m sport 2000/01 - M62TU Vanos V8
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