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Gilberttribe
Dodge Dakota
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4/07/2009
18:25:05
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 Subject: Transmission oil level at cold and hot
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Message:
I recently replaced the two transmission oil
filters on my 2002 4x4 4.7L QC Dakota. I think
the manual states it will take 6.2 quarts with the
filter change. I added 5.5 quarts and checked the
level on level ground when at operating
temperature in neutral after shifting into each
gear. Now, when the truck is cold, the level
looks too high, and when hot, it is still too low
after adding a total of 7 quarts. It seems to be
shifting very well as it always has. I made sure
the larger filter was seated correctly. I'm going
to measure how much oil was drained in case it was
more than expected. Do you have any idea what
might be going on here? Why is the oil level much
to high while the hot oil level is still too low?
|
JasonB
Dodge Dakota
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4/07/2009
20:49:41
|  RE: Transmission oil level at cold and hot
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Never depend on the quantity specified in the manual for anything more than a ball-park figure. Manufacturing tolerances and filter capacities can affect fluid level.
Here's how to set your transmission fluid level:
Vehicle level
Engine running
Transmission at operating temperature
Transmission in neutral
Parking brake set
Pull the dipstick. Wipe it off. Re-insert, then pull it out and read the level.
If it's too low, add some to get it where it needs to be in the HOT range. Check the level every time you add some so you don't over-fill.
If it's too high, run a small diameter tube down the fill tube and pull some out with the vacuum device of your choosing (unless you've installed a drain valve on the transmission pan).
Your transmission was designed to run properly with the fluid level set as I described above.
|
gotta luv it
Dodge Dakota
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4/08/2009
04:53:46
| RE: Transmission oil level at cold and hot
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Message:
Think with your Dip Stick Jimmy!!!
"Transmission in neutral"
Read the dipstick!
some are checked in park
and it will state such right on the stick
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Gilberttribe
Dodge Dakota
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4/08/2009
17:46:12
| RE: Transmission oil level at cold and hot
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Message:
I did measure the amount drained and it was
slightly over 8 quarts. The dip stick does state
to check the level in neutral. Next time I will
measure since I drove around 2 quarts low much
longer than I would like.
I assume the above responses suggest I ignore the
cold level reading. It still bothers me since the
dip stick also says something about not adding any
fluid if the cold level is between the cold holes.
It is actually above both cold holes when cold,
but below the lower hot hole when hot.
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JasonB
Dodge Dakota
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4/08/2009
20:38:22
| RE: Transmission oil level at cold and hot
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Message:
Yes. You can ignore the cold checks. Transmission fluid level is set when HOT with the engine running and transmission in Neutral.
You can check it COLD, but the engine still must be running and the transmission must be in Neutral.
What this does is engage the transmission fluid pump, get fluid pressures up, and fills all the fluid passages that drain down while the transmission rests. Once all that happens, thats when a fluid level check is made.
So. Check the level HOT or COLD, but always set the level HOT.
As "gotta luv it" indicated, some transmissions can be checked in Park. Those transmissions engage the transmission fluid pump in Park, so Neutral is not required. However, ALL transmissions that have a dipstick can be checked in Neutral - NOT ALL transmissions should be checked in Park.
One characteristic of the 45RFE and 5-45RFE you should know about - the transmission fluid does not travel to the cooling circuit until the transmission is well warmed up. So what looks good COLD may end up a quart or so low after a short drive following fluid change once the transmission is up to temperature.
Of late there is a trend among some manufacturers to seal the transmissions, requiring special dealership procedures($$), equipment($$) and time($$) to check and fill. Those checks are extremely temperature-sensitive, and not normally within the capabilities of the home mechanic.
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Question
Dodge Dakota
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4/09/2009
20:34:10
| RE: Transmission oil level at cold and hot
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Message:
Hey JasonB. You a dodge tech?
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Gilberttribe
Dodge Dakota
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4/10/2009
01:06:18
| RE: Transmission oil level at cold and hot
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Message:
JasonB, thank you for the information. I was not
checking the cold level with the motor running.
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JasonB
Dodge Dakota
JOIN HERE
4/10/2009
19:35:15
| RE: Transmission oil level at cold and hot
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Message:
Gilberttribe,
Something you can do to ease your mind about the level is to note the COLD level, perhaps the morning after a proper HOT level check. That way, you can check it COLD any time, and know if the level is still correct.
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suba me
Dodge Dakota
JOIN HERE
12/20/2018
13:57:36
| AWbQIwgfyRJyFt
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