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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

Transmission Fluid Level

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Old Feb 25, 2014 | 8:40 AM
  #11  
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ok...thats why i'm baffled??? when its cold or off the level reads above full, not where the cold level is. when its running it reads at the cold level. and yes this is after running it for 15 min and driving about 10 min...
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Old Feb 25, 2014 | 9:25 AM
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Originally Posted by trainwreck91
ok...thats why i'm baffled??? when its cold or off the level reads above full, not where the cold level is. when its running it reads at the cold level. and yes this is after running it for 15 min and driving about 10 min...
The transmission fluid should always show above the full mark when its off and cold.

Like Tech2 said, the cold mark is for checking the level when first cranking the motor. Its like a safety check to make sure there is plenty of fluid in it prior to driving it.

After driving it and getting the transmission fluid up to operating temperature, if the fluid level is low then add some more (in small amounts) until it reaches the full mark.
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Old Feb 25, 2014 | 9:31 AM
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Originally Posted by trainwreck91
ok...thats why i'm baffled??? when its cold or off the level reads above full, not where the cold level is. when its running it reads at the cold level. and yes this is after running it for 15 min and driving about 10 min...
Think of the transmission dipstick measurement method as checking the fluid level when the motor is running. The important part is checking the fluid while its hot and running.

This is opposite of checking engine oil. The dipstick is designed for checking engine oil with the motor off and having been off for at least 5 minutes (to let the oil drain back into the oil pan).

Transmission fluid measurement method is not equal to engine oil measurement method
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Old Feb 25, 2014 | 10:18 AM
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Thanks for clarifying that. That's what had me confused. The cold marker threw me off
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Old Feb 25, 2014 | 10:20 AM
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Originally Posted by trainwreck91
Thanks for clarifying that. That's what had me confused. The cold marker threw me off
Sure thing!
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