Transmission fluid check - Chrysler 300C Forum: 300C & SRT8 Forums
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post #1 of 8 (permalink) Old 03-15-2017, 08:54 AM Thread Starter
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Transmission fluid check

Hey everyone,

I want to get something clear about checking the transmission fluid on the NAG1. I know we get the temp of the fluid by putting the car into drive. I want to know if we check the level of the fluid in park or drive.. The level of fluid in park is different than the level of fluid in drive. I've been having a whine whirrling noise when car is cold before the 2nd shift happens. Sounds like the tranny pump sucking air almost. Level is at 65mm at 165 degrees when checked in park. Level is at about 45mm when checked in drive at 165 degrees.

Any thoughts would be helpful

Last edited by Alan1; 03-15-2017 at 08:55 AM.
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post #2 of 8 (permalink) Old 03-15-2017, 01:50 PM
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measure in park. If youre getting a correct temperature reading, the level is correct. I'd be inclined to check the temperature via another method, as I've seen no info on how accurate the built-in evic temp reading is


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Last edited by Kaiser Bill; 03-15-2017 at 01:52 PM.
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post #3 of 8 (permalink) Old 03-15-2017, 02:35 PM Thread Starter
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Thats what i was wondering if the EVIC temp is actually correct. Do you have a tool you use to measure the temp?
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post #4 of 8 (permalink) Old 03-15-2017, 05:14 PM
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yes...I have a cheap electronic thermometer with a 4ft thermocouple off ebay that I shrink-tubed onto the dipstick
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post #5 of 8 (permalink) Old 03-15-2017, 10:34 PM
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Do not use EVIC temp that is coolant temp you need a scanner that reads transmission temp you can also get a B&M dipstick that has temp sensor built in.

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post #6 of 8 (permalink) Old 03-20-2017, 05:25 AM
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As mentioned above... Be sure that you are checking the transmission fluid temp not coolant temp... 2 very different temps!

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post #7 of 8 (permalink) Old 03-20-2017, 04:11 PM
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Quote:
Originally Posted by Trenton Johnson View Post
Do not use EVIC temp that is coolant temp you need a scanner that reads transmission temp you can also get a B&M dipstick that has temp sensor built in.
really? I can find B&M dipsticks, but none with a sensor. If you know different, can you put up a link please, as that sounds a good idea


I thought I solved the issues by fitting a B&M deep pan, which has a sensor hole in it. Now I get accurate temperatures, but the extra fluid means it never gets up to 80 degrees when stationary, and my dipstick is a 'hot/cold' one.....so now when I do it I have to take a tape measure to the dipstick tip, and measure for 75 degrees!

Last edited by Kaiser Bill; 03-20-2017 at 04:15 PM.
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post #8 of 8 (permalink) Old 03-20-2017, 05:30 PM
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Sorry the BM dipstick has the temp measurements on it BM 22302 and BM 80212
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