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Frango100 08-27-2011 11:53 AM

How to check tranny fluid level
After some discussions on an other thread, decided to open a new one with the following question;
How do you check the fluid level on a 5-45RFE transmission?
The owners manual, and many others say to check it in P(ark), while (at least on some) dipsticks its written to check it in N(eutral).
I've never checked this out, but other member already mentioned a difference in level between P and N (lower level in P).
So the question is, which way is the right way?

01grand 08-27-2011 07:17 PM

Re: How to check tranny fluid level
From my understanding in the 45RFE and 5-45RFE the torque converter fills with fluid in both park and neutral. This is why the fluid can be checked in either as this is when the tranny will be using the most fluid.

It is also my understanding that that the 42RE that goes with the I6 can only be checked in neutral because the torque converter will be filled with fluid, but it will not be if this tranny is in park.

I believe this information is what is stated on and I know my manual that came with my 01 V8 with the 5-45RFE says fluid should be checked when the engine is running with the tranny in park or neutral.

Martyp 08-28-2011 02:01 PM

Re: How to check tranny fluid level
x2. What Aaron said.

Park or Neutral, doesn't matter. :thumbsup:

StoneCold 08-28-2011 02:05 PM

Re: How to check tranny fluid level
X3 on what the other Aaron and Marty said! :D

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