3 speed slipping in 1st gear now

[Ondonti]

196k mile transmission with burned fluid that has run 20k miles since purchase with just 2nd gear slipping on change when cold. Bands never adjusted.

Tonight it didn't want to move forward in 1st with small throttle inputs until it had warmed up for maybe 4 minutes of driving.
Not ready to do a full rebuild though I have spares.

[shackwrrr]

Sounds like the forward clutch piston seal is hardening up. Try some kind of seal conditioner like lucas trans fix for a temporary fix. If you catch it before the cluches are too gone you'll be fine for a while.

[bakes]

Have to agree sounds like the piston seals is gone hard try a seal softener got nothing to loose at this point

[thedon809]

We have a 99 grand cherokee that does that. Won't shift into third until it warms up.

[Ondonti]

Sounds like the forward clutch piston seal is hardening up. Try some kind of seal conditioner like lucas trans fix for a temporary fix. If you catch it before the cluches are too gone you'll be fine for a while.

Looks like I need to quick fix soon. Lucky I was the first one to notice it....I have been coaching her on going easy on the 2nd gear change slip. Listen/feel for it and back off. 20k miles okay so far.
What ratio of Lucas trans fix to old nasty stock fluid do I run?

[shackwrrr]

I just throw the whole quart in.

[Ondonti]

I just throw the whole quart in.

So do I pull a cooler line to get some of the fluid out? My extent of work on 3 speeds is pulling two at the yard in the same day.

[thedon809]

That would probably work fine.

[shackwrrr]

Last trans that I did it in was a rear wheel drive and I just overfilled it. The three speed is kinda small so yeah that would work to get some fluid out.

[Ondonti]

Last trans that I did it in was a rear wheel drive and I just overfilled it. The three speed is kinda small so yeah that would work to get some fluid out.

I put a half in and after it idled for 20 minutes (took forever to drain in) the fluid was still just over the hot cutout on the dipstick.

[crusty shadow]

take a turkey baster with a length of tube on it and suck some out, you definitely don't want to run it over-full, you can burn the trans the rest of the way up doing that.

[Vigo]

Sounds like time to learn some stuff.

It's normal for old seals to harden up to that point. Both my dad's old a500 and mom's old 604 started acting up around 200k due to seal hardening. I rebuilt both for less than $500 in parts (if they were my cars i would not have replaced some of the stuff i did and it would have been cheaper) and each went another 50k before cash for clunkers and low oil pressure finally took them off the road.

It's just a part of high mile life. The alternatives are: a. drive stick b. drive newer cars c. learn to fix it cheap yourself.

[black86glhs]

Sounds like time to learn some stuff.

It's normal for old seals to harden up to that point. Both my dad's old a500 and mom's old 604 started acting up around 200k due to seal hardening. I rebuilt both for less than $500 in parts (if they were my cars i would not have replaced some of the stuff i did and it would have been cheaper) and each went another 50k before cash for clunkers and low oil pressure finally took them off the road.

It's just a part of high mile life. The alternatives are: a. drive stick b. drive newer cars c. learn to fix it cheap yourself.

Your kidding right? If Brent can't rebuild it for $50, he won't.

I can't say I blame him, either.

[Vigo]

A seals-only kit for a 670 actually is less than $50 afaik. A seals and clutches kit is probably right under $100.

If brent wants to get brave and rebuild the 670 in his wife's car i will send him one of the nice reusable mopar pan gaskets i just won off ebay thus doubling the dollar value of the repair.

[Ondonti]

Your kidding right? If Brent can't rebuild it for $50, he won't.

I can't say I blame him, either.

So the 1997 transmission I have (newest) could have some donor seals. Filter fluid through some paper towels and good to go?

A seals-only kit for a 670 actually is less than $50 afaik. A seals and clutches kit is probably right under $100.

If brent wants to get brave and rebuild the 670 in his wife's car i will send him one of the nice reusable mopar pan gaskets i just won off ebay thus doubling the dollar value of the repair.

I would like to procrastinate any heroics for quite a few months. That and the good stuff should be put into something funner
I should only be doing car things that avoid catastrophe until my house is more livable.

[Vigo]

I should only be doing car things that avoid catastrophe until my house is more livable.

When you put it that way, i couldnt agree more.

My dad has been nursing a flaring mitsu 4spd in his diamante for 80+k miles now.. 264k and counting.

[Ondonti]

Your kidding right? If Brent can't rebuild it for $50, he won't.

I can't say I blame him, either.

When you put it that way, i couldnt agree more.

My dad has been nursing a flaring mitsu 4spd in his diamante for 80+k miles now.. 264k and counting.

Hopefully I get something accomplished before 60k more miles accrue. I am surprised it has even made it this far.

[Vigo]

If i had more than one 670 case i would have my students build one and then ship it to you for $200-250 total, but i only have one case right now and i'm hoarding it.

[Reaper1]

I keep telling him it's easy to build and he can do it in a weekend! I even have all my notes and such from when I built my 413.

Brent, seriously, get the parts a little at a time and when you have them all we will build the tranny and swap it. No biggie. I know it sounds easy and money is tight (believe me...I do understand), but I promise it can be done!

[RoadWarrior222]

Lucas Transmission fix is the closest to miracle in a bottle out there, I put it in everything that takes ATF now. For example, beat up old Tempo with ford ATX 3 speed that my stepdaughter got, slipping bad when she got it... I put the LTF in it, we got 3 years and 30,000 miles out of it, no slip, then it went in somewhere for a starter and was screwed up, no freaking idea what happened to it there.

Also, I don't think it's drastic to overfill an A413 or A670 by a bit, there's a couple of inches before moving parts foam it.

However, I'd at least set the band that has the nut outside if you're not pulling the pan yet.