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CVT Top off when changing just the HP filter...

Posted: Thu Oct 10, 2019 6:54 am
by Deckard_Cain
As in the Subject/title... I know my CVT has had the fluid changed, lower pan was removed, can only suppose the filter there was replaced. I actually suspect that the entire transmission was either replaced or rebuilt about 2000 miles ago, about 600 miles before I bought it, given how many times it changed hands and whom was involved.

But I cannot tell and am not sure about the HP filter. I'd like to replace it myself (or at least inspect it) to be certain of this. Obviously I'll lose some fluid taking it out. How much?

If I buy a qt to top it back off, is this sufficient? Will more than a quart come out of the high pressure filter port?

Re: CVT Top off when changing just the HP filter...

Posted: Thu Oct 10, 2019 9:49 am
by knowitall
The biggest potential issue will be stripping the two Torx head bolts. Use the correct attachment when taking the bolts out. Ask me how I know. :lol:

Re: CVT Top off when changing just the HP filter...

Posted: Thu Oct 10, 2019 10:57 am
by Deckard_Cain
knowitall wrote:
Thu Oct 10, 2019 9:49 am
The biggest potential issue will be stripping the two Torx head bolts. Use the correct attachment when taking the bolts out. Ask me how I know. :lol:
That would indeed suck. I have proper, good quality torx bit sets that fit onto 1/4" and 3/8" drive... so long as I pick the correct one... <fingers-crossed>.

Still unsure about the top off capacity though. Might just go with a single quart and see what happens.

Re: CVT Top off when changing just the HP filter...

Posted: Thu Oct 10, 2019 1:52 pm
by ds32928
Check it with the dipstick after, or, measure what runs out in a pan, and put that much back in. 1 quart is all you need to buy, wont take all of that. HP filter that was installed when they built the CVT had metal ends, Ford HP filter from the dealer has black plastic ends. That Ford replacement filter is fine, we all use them. You will need to support the CVT when you take the CVT mount off to get to the filter.

Re: CVT Top off when changing just the HP filter...

Posted: Thu Oct 10, 2019 4:07 pm
by Deckard_Cain
ds32928 wrote:
Thu Oct 10, 2019 1:52 pm
Check it with the dipstick after, or, measure what runs out in a pan, and put that much back in. 1 quart is all you need to buy, wont take all of that. HP filter that was installed when they built the CVT had metal ends, Ford HP filter from the dealer has black plastic ends. That Ford replacement filter is fine, we all use them. You will need to support the CVT when you take the CVT mount off to get to the filter.
Sounds perfect... Thanks. Just knowing whether it'll leak 2oz or 20, or more is helpful.

Re: CVT Top off when changing just the HP filter...

Posted: Thu Oct 10, 2019 5:13 pm
by dwighte
Just remember to NOT use ordinary transmission fluid. It will quickly destroy your transmission. There are many horror stories of people taking them to the dealer and having them use ATF.
Dwight

Re: CVT Top off when changing just the HP filter...

Posted: Fri Oct 11, 2019 4:14 am
by Deckard_Cain
dwighte wrote:
Thu Oct 10, 2019 5:13 pm
Just remember to NOT use ordinary transmission fluid. It will quickly destroy your transmission. There are many horror stories of people taking them to the dealer and having them use ATF.
Dwight
Absolutely! Not even a "universal" cvt fluid that says it meets the spec is going to be used. I don't want to take the chance.

I'd like to get another 100k-120k mies from this car.

Re: CVT Top off when changing just the HP filter...

Posted: Fri Oct 11, 2019 7:13 am
by jas88
You will need an inch-pound torque wrench to not strip out the bolts.