Transmission fluid change
#1
Transmission fluid change
Hi,
Yesterday I pumped out a little over 2 qts of transmission fluid which I of coursed replaced. This is the first time I did this and was wondering how many miles I should drive before I do this again and again?
I also have the same question regarding my power steering fluid.
Thanks,
Jomo
Yesterday I pumped out a little over 2 qts of transmission fluid which I of coursed replaced. This is the first time I did this and was wondering how many miles I should drive before I do this again and again?
I also have the same question regarding my power steering fluid.
Thanks,
Jomo
#2
#3
If the fluid in the trans is an "unknown age", I do it 8 times in about 200kms, with as many gearchanges as possible, or whenever I get the warm and fuzzy to climb under under and drop the dipstick tube, drink a beer or 2 while it drains, refit said tube, pour in 5ltrs, another beer, job done.
It does take several drop and refills to get the "new' concentration up in the 90%+ mark, and the trans will then be happy, especially that lockup convertor set up, NO MORE clunking after 3 sessions.
I am NOT a fan of these flush machine, seen too many trans shocked into failure wiuth them.
Power steer, SAME, its simple, syringe it out, refill, and move on, many times.
Fluid is CHEAP, transmissions and steer components, not so.
It does take several drop and refills to get the "new' concentration up in the 90%+ mark, and the trans will then be happy, especially that lockup convertor set up, NO MORE clunking after 3 sessions.
I am NOT a fan of these flush machine, seen too many trans shocked into failure wiuth them.
Power steer, SAME, its simple, syringe it out, refill, and move on, many times.
Fluid is CHEAP, transmissions and steer components, not so.
#4
#5
NAH, I am STRANGE, so i am told.
At the time, work was 25ish kms round trip.Suburban roads, so PLENTY of gear changes each way.
Being OLD, I finish at 3PM, drive home, drain the trans, drink beer, refill the trans, repeat next day, IF I feel like it, if not, then the next day, until the COLOUR of what drains OUT is about the same colour as what is going IN, trans is happy.
The filter inside that 4HP trans is a metal mesh thing, like the old Borg Warner units, so, unless there is metal "bits" felt in the old fluid, leave it be.
Steer is the same.
Ironically, just got home, and syringed out and refilled the X Type steer fluid, and memory?????? that is about 10 times since September (purchase date for me), and the weirdness of that steering system is GONE. Its trans will get #9 drop and refill this weekend, they be a tad messy to drop and refill. Both fluids in that car were BLACK, and I mean BLACK, and STANK, when I did the 1st drop and refill, and at 90K kms, very sad to see.
This procedure has been my ruling for ALL my Jags, since 1968, and has served me well.
At the time, work was 25ish kms round trip.Suburban roads, so PLENTY of gear changes each way.
Being OLD, I finish at 3PM, drive home, drain the trans, drink beer, refill the trans, repeat next day, IF I feel like it, if not, then the next day, until the COLOUR of what drains OUT is about the same colour as what is going IN, trans is happy.
The filter inside that 4HP trans is a metal mesh thing, like the old Borg Warner units, so, unless there is metal "bits" felt in the old fluid, leave it be.
Steer is the same.
Ironically, just got home, and syringed out and refilled the X Type steer fluid, and memory?????? that is about 10 times since September (purchase date for me), and the weirdness of that steering system is GONE. Its trans will get #9 drop and refill this weekend, they be a tad messy to drop and refill. Both fluids in that car were BLACK, and I mean BLACK, and STANK, when I did the 1st drop and refill, and at 90K kms, very sad to see.
This procedure has been my ruling for ALL my Jags, since 1968, and has served me well.
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Grant Francis (07-08-2019)
#7
I do a drain and refill of my Transmission, at the same time as the oil and filter change. I got this advice from others on the forum and it seems to be working well. The first time I did it there was a noticeable improvement in gear changes and the fluid that came out was black.
Thanks,
Jomo
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#8
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Don B (07-08-2019)
#10
Yes , look at the numbers in the docs
The majority is stuck in the torque converter
https://www.jaguarforums.com/forum/x...change-133117/
The majority is stuck in the torque converter
https://www.jaguarforums.com/forum/x...change-133117/
Last edited by Lady Penelope; 07-08-2019 at 04:35 PM.
#11
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Grant Francis (08-31-2019)
#14
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#17
Some have a drain plug towards the rear of teh pan.
Our XJ40 did, the X300, nope.
Undo the BIG dipstick tube nut, and then lower the car back down, carefully, with the pan under the dribbling fluid.
Wait a few minutes, raise the car, tighten that BIG nut (NOT Rock Ape tight please). Pour in the 5ltrs, and drive it, then repeat as needed, until the draining fluid is the same colour as in the ingoing fluid, jobs done.
Our XJ40 did, the X300, nope.
Undo the BIG dipstick tube nut, and then lower the car back down, carefully, with the pan under the dribbling fluid.
Wait a few minutes, raise the car, tighten that BIG nut (NOT Rock Ape tight please). Pour in the 5ltrs, and drive it, then repeat as needed, until the draining fluid is the same colour as in the ingoing fluid, jobs done.
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Parker 2 (07-15-2020)
#18
Hm, unless I'm missing something, isn't siphoning the easiest way to "drain & fill" these transmissions? I've done it three times now on my jag and it was super easy. A length of vinyl tubing and a drain pan, I get about 3 quarts out each time (through the dipstick tube). No jack, no jack stands, no pan gaskets, no mess, etc. It is tricky to get it started, but once it is you just let it sit there and it drain the pan out and then you just refill it with the same amount that came out.
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xalty (09-06-2020)
#19
Hm, unless I'm missing something, isn't siphoning the easiest way to "drain & fill" these transmissions? I've done it three times now on my jag and it was super easy. A length of vinyl tubing and a drain pan, I get about 3 quarts out each time (through the dipstick tube). No jack, no jack stands, no pan gaskets, no mess, etc. It is tricky to get it started, but once it is you just let it sit there and it drain the pan out and then you just refill it with the same amount that came out.
I have it down to a fine art, and old age makes me reluctant to change.
Anyway, with that syphon method I would drink too many beers, and never find the damn car until tomorrow. Its a 4 beer task the way I do it now.
Then these "new" things in my fleet without a dipstick, they be special beasts indeed. Got a drain plug and a fill plug, simple enough.
#20