trainwreck91

This might sound silly. But I just changed out my transmission oil cooler line. Spilled about a cup or two doing it. When I was done and after warming up and even driving a short period I came back and measured the level. It was very low. Just a drop on the very tip of the dip stick. Now it says when its cold it should be just above the tip. And it says to check when its warm in idle on a level surface and should be in the crosshatch section. So...I turned it off and added a quart of Dex VI. Run it again and get the same results. Turn it off and wait a while. Check it after 15 min with the motor off. Now the level is well above the crosshatch. So I'm worried I put too much??? Am I doing something wrong?? Checked it 10 times. Same results


Forgot to mention this is an 07 burb ltz with 110k
Carfax reports that tranny fluid was changed at 94k.
Right before I purchased it

tech2

to check it at the hot mark correctly...the dipstick should be hot to the touch.


I have changed many trans cooler lines and never had to put in more than 1 liter of fluid. Was the fluid level low to begin with?

titantn24

Are you checking the fluid level while the engine is running? That's how you should be doing it. Hope this helps.

trainwreck91

Yes dipstick was steaming and engine running
Engine on. Dipstick low
Engine off. Dipstick over full

Charlie5280

How does it drive?

trainwreck91

Drives normal.

Charlie5280

I really wouldn't worry to much then. Typically with a non-Newtonian fluid (IE...ATF fluid), the shear thickness and volume change disproportionately to temperature.

That is, they expand greatly with higher temperatures......so even if when hot it's a little over full, you won't see any issues within the valvebodies.

If this was your engine, I would say pull oil out immediately. With an auto-tranny...you won't have any problems.

'03 Heavy Chevy

With the engine on, idling, on level ground and its still low....then you should add some more. A little at a time until it gets to the full mark.

When the engine is off, the dipstick should always show "over full" mark. The fluid drains back down into the pan when the engine is off so its normal to be over the full mark.

trainwreck91

Then why would there be a cold mark at the very tip of the stick. Confusing

tech2

you must check the fluid in park and running for both the cold and hot fluid level checks.
The cold mark is there so it can be checked without bringing the fluid up to operating temp as it could take 15minutes of driving to do that. The most accurate method is the hot check but both methods are acceptable.