Question regarding flushing trans from return line
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Senior Member
Joined: Jun 2014
Posts: 639
Likes: 54
Question regarding flushing trans from return line
I plan on changing the filter/fluid in my E4OD soon. My plan is to drain the pan, change the filter, fill the pan then start flushing the old fluid from the return line while replacing new fluid through the dipstick. My question of this. Will the new fluid (Mercon V) end up being mixed with the old (Mercon) or will fluid from the converter go to the radiator first before the new fluid from the pan?
Senior Member
Joined: Apr 2011
Posts: 176
Likes: 22
From: Arkansas
What Year? does it have a TQ Converter Drain Plug, On my 91 I simply removed the pan, pulled the TQ Converter plug then used compressed air to blow out the cooler and lines. Reassembled, put in 2 gallons and started up then filled remaining I think about 3.5 to 4 gallons total; It's been a while....
But to answer your question I think you will be mixing fluid because I don't believe 100% of fluid is routed through the cooler each time; the trans moves fluid internally also.
ToddsSS
But to answer your question I think you will be mixing fluid because I don't believe 100% of fluid is routed through the cooler each time; the trans moves fluid internally also.
ToddsSS
Thread Starter
Senior Member
Joined: Jun 2014
Posts: 639
Likes: 54
What Year? does it have a TQ Converter Drain Plug, On my 91 I simply removed the pan, pulled the TQ Converter plug then used compressed air to blow out the cooler and lines. Reassembled, put in 2 gallons and started up then filled remaining I think about 3.5 to 4 gallons total; It's been a while....
But to answer your question I think you will be mixing fluid because I don't believe 100% of fluid is routed through the cooler each time; the trans moves fluid internally also.
ToddsSS
But to answer your question I think you will be mixing fluid because I don't believe 100% of fluid is routed through the cooler each time; the trans moves fluid internally also.
ToddsSS
Senior Member
Joined: Apr 2011
Posts: 176
Likes: 22
From: Arkansas
Draining the TQ Converter is the best way to do it.
You have a couple options:
- Enlist the help of a friend to bump over for you.
- get a remote starter switch - something like:
http://www.autozone.com/autozone/acc...ier=476887_0_0_
- use a ratchet and socket to turn the crank over....
You have a couple options:
- Enlist the help of a friend to bump over for you.
- get a remote starter switch - something like:
http://www.autozone.com/autozone/acc...ier=476887_0_0_
- use a ratchet and socket to turn the crank over....
Last edited by ToddsSS; Jul 9, 2014 at 11:44 AM. Reason: sp
Thread Starter
Senior Member
Joined: Jun 2014
Posts: 639
Likes: 54
Draining the TQ Converter is the best way to do it.
You have a couple options:
- Enlist the help of a friend to bump over for you.
- get a remote starter switch - something like:
http://www.autozone.com/autozone/acc...ier=476887_0_0_
- use a ratchet and socket to turn the crank over....
You have a couple options:
- Enlist the help of a friend to bump over for you.
- get a remote starter switch - something like:
http://www.autozone.com/autozone/acc...ier=476887_0_0_
- use a ratchet and socket to turn the crank over....