c70 2004 trans flush

gpaqu25 · Post by **gpaqu25** » 17 Jul 2016, 18:36

So I did my trans flush today. I purchased the flush kit, and had it all hooked up. Started the car, And the fluid came out of the hose not the radiator. I ended up doing the 2+ gal flush from the hose. This hose was the one on the top driver side.

Post by **MrAl** » 17 Jul 2016, 20:28

Hi,

I was told NOT to flush mine. Not sure why yet. Your trans still works ok?

Post by **cuhfs** » 17 Jul 2016, 20:52

C70 trans is the AW 55-50 model which volvo claims is a closed system. Same exact model trans is also used in other Import cars like toyota and also some domestics all say the fluid should be changed at a specified interval. I have 2 - 04 c70 that both had trans problems because prior owner did not service the trans. Also know others that had trans problem÷.

gpaqu25 · Post by **gpaqu25** » 18 Jul 2016, 05:56

The car has 107,000, the old fluid was dark and smelly. I used mobile 3309, Took the car out after for a short test drive. seems ok.

Post by **cuhfs** » 18 Jul 2016, 07:33

1 of mine went bad at 96,000 the other at 120,000 so you never know. I will be changing my fluid very periodically and put an inline filter because the repairs which I did were not easy. Never want to have to do them again!

gpaqu25 · Post by **gpaqu25** » 18 Jul 2016, 14:21

is there a explanation of why the fluid came from the hose instead of the radiator ?

Post by **cuhfs** » 19 Jul 2016, 19:31

That car, that's the flow I assume. I believe I had the same result the one time I did the hose method from IPD. Now I prefer the.Robert DIY three 'drain and fills'
driving in between, and not the hose method. It introduces the new fluid slower and at intervals so it is less shock to the system IMHO.