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Thought I would try to check automatic transmission fluid with the engine off, not thinking that the torque converter holds oil when the engine is running. Lost about one and a quarter cups or less of transmission fluid. Then I checked the proper way lol started the engine. Let it warm up to operating temperature. Removed theplug and I still got oil dribbling-running out the way it’s supposed to normally be.
just wanna make sure from you guys that know a lot more than me about the C5 if it’s ok.
🙏
Thought I would try to check automatic transmission fluid with the engine off, not thinking that the torque converter holds oil when the engine is running. Lost about one and a quarter cups or less of transmission fluid. Then I checked the proper way lol started the engine. Let it warm up to operating temperature. Removed theplug and I still got oil dribbling-running out the way it’s supposed to normally be.
just wanna make sure from you guys that know a lot more than me about the C5 if it’s ok.
🙏
So to be clear, you estimate you lost over 1 cup of transmission fluid. You have not replaced the lost fluid, and with the engine running, you still have 1-cup less of fluid than you did before.....and you want to know if that is ok?
So, are we to assume you quickly put the inspection plug back in to stop the fluid drain? Then started the engine, warmed everything up to temp? Then removed the same plug and got just a dribble of fluid? Did you shift the trans thru the 4 speeds, 1, 2, 3, and OD? If that's the case, it sounds like the trans was slightly overfilled before you started any of these procedures, maybe by a previous owner, or shop. It is my understanding that the fluid level is correct when everything is warmed up to temperature, you remove the plug and just a very small amount runs down the trans case and slowly drips into a drain pan.
So to be clear, you estimate you lost over 1 cup of transmission fluid. You have not replaced the lost fluid, and with the engine running, you still have 1-cup less of fluid than you did before.....and you want to know if that is ok?
No. I took out the automatic transmission drain plug with the engine off. Lost about 1-2 cups of fluid. Put the plug back in. Started the engine and let it warm up to operating temperature. I did not run it through the gears. I removed the plug and had oil dribbling/running out of the fill hole. Want to make sure it is safe to drive the car missing that amount of tranny fluid.
No. I took out the automatic transmission drain plug with the engine off. Lost about 1-2 cups of fluid. Put the plug back in. Started the engine and let it warm up to operating temperature. I did not run it through the gears. I removed the plug and had oil dribbling/running out of the fill hole. Want to make sure it is safe to drive the car missing that amount of tranny fluid.
Whether you say yes or no, your transmission is still down 1-2 cups of fluid. The forecast for Mesa for the next week is an average temperture of 106 degrees, so yes....you need ALL the required fluid in the transmission.
Here's the procedure from the Haynes manual and a vid from Toys4Life. A bit tedious but not difficult. Just be sure the car is level and transmission is up to temp. https://www.corvetteforum.com/forums...post1608907659
UPDATE
I went back out to the garage and went through the proper procedure for checking the transmission fluid. This time I shifted it through the gears 3 or four times. Removed the transmission fill plug with the engine running and operating temperature and I still got fluid running out. Replaced the plug and torque it properly. Drove the car on a 350 mile trip on Saturday. I monitor the transmission fluid the whole day. Transmission temperature did not go above 210°. Now my mind is at ease, not worrying about ruining the transmission.
I want to thank you for everyone that responded and gave me good advice..
For future reference.
When performing this check, ensure the trans temp on your DIC is set and watch it rise to 110 degrees. That's when you check the fluid level after slowly going through each gear a few times.
If the transmission fluid is much hotter than that, it may not be an accurate reading.
This car is specific about this procedure
Automatic transmission fluid.
