Transmission service question

[MarshRam]

All of that's exactly what I don't want to deal with. + I'm on a 6 inch lift. I'll pay the $230 for the shop to do it.

 

[Wild one]

Thanks for that reminder and attachment. Printed! It's hilarious that it comes with the truck that has a so-called lifetime transmission. Love the 8 speed transmission, but what a PITA. LOL

They get an emissions credit for saying it's sealed for life,that they then can use somewhere else that doesn't quite meet the emission standards.Everything always goes back to meeting US emission laws

 

[MarshRam]

They get an emissions credit for saying it's sealed for life,that they then can use somewhere else that doesn't quite meet the emission standards.Everything always goes back to meeting US emission laws

Whatever they have to do I guess. But at least use their attorney's for some fancy legalesing to put some sort of language in there that implies you should change the fluid/pan/filter and provide an interval. I'll give it to them, I'm at 137K doing it for the first time, although I felt I have pushed it, that's amazing.

 

[Wild one]

Whatever they have to do I guess. But at least use their attorney's for some fancy legalesing to put some sort of language in there that implies you should change the fluid/pan/filter and provide an interval. I'll give it to them, I'm at 137K doing it for the first time, although I felt I have pushed it, that's amazing.

If they did that,they couldn't say it's sealed for life and get the emission credit.
Use ZF's service intervals instead,as they're not hindered by the US emission laws.
ZF says to change the fluid between 50,000 and 80,000 miles or every 8 years if you haven't met those milege numbers.
If you tow or beat on the truck fairly often,change it at 50,000 miles,if it's basically a pavement princess change it every 80,000 miles

 

[Burla]

The zf 8 speed is probably the best transmission going at this time, which I guess isn't saying much, but at least it isn't a rope cvt. But it is very serviceable and if someone tells you it's lifetime fluid, give them directions to the closest yellow bus stop.

 

[EdGs]

I eliminated the coolant lines to the TMU/heat exchanger. Now, I can go a fair bit before my 8 speed gets to the 180 range.

I will install my PPE pan and Jesse's bypass soon, maybe over this long weekend. Then, my temps should stay lower even longer.

 

[Wild one]

I eliminated the coolant lines to the TMU/heat exchanger. Now, I can go a fair bit before my 8 speed gets to the 180 range.

I will install my PPE pan and Jesse's bypass soon, maybe over this long weekend. Then, my temps should stay lower even longer.

Ed this is asking alot,but i've been curious on what temps the transmission will run at ,with out the coolant lines feeding hot coolant to the TMU and just the PPE pan installed,with-out Jesse's bypass. That's if you're up for trying that experiment. If it still runs hotter then you like it's easy to install Jesse's bypass down the road

 

[EdGs]

Ed this is asking alot,but i've been curious on what temps the transmission will run at ,with out the coolant lines feeding hot coolant to the TMU and just the PPE pan installed,with-out Jesse's bypass. That's if you're up for trying that experiment. If it still runs hotter then you like it's easy to install Jesse's bypass down the road

Here's my temps right now, idling in the parking lot of Texas Roadhouse waiting on a takeout order after running for a bit.

I have seen 190° as well. When I left work today, I got about 15 miles away, and my trans temps were only ~150° ish.

Still on the stock pan, without Jesse's bypass.

 

[EdGs]

I probably should install Jesse's bypass first, and see how it does.

 

[Wild one]

I probably should install Jesse's bypass first, and see how it does.

I'd do the pan first Ed,as it might pull enough heat out,that you don't need the bypass.The bypass is easily added after the fact if you feel it's still needed. You can over cool the ZF, it's not really happy at temps under 150

 

[EdGs]

I'd do the pan first Ed,as it might pull enough heat out,that you don't need the bypass.The bypass is easily added after the fact if you feel it's still needed. You can over cool the ZF, it's not really happy at temps under 150

Well, sh*t.

Ed luck, I might not need it.

I have 7 qts. of Mopar fluid, I'm really debating getting some MaxLife and doing a couple drain and fills on the stock pan first, then installing the PPE pan with the OE fluid I have.

Question:

Won't the exhaust crossover pipe radiate heat into the aluminum pan?

 

[Wild one]

Well, sh*t.

Ed luck, I might not need it.

I have 7 qts. of Mopar fluid, I'm really debating getting some MaxLife and doing a couple drain and fills on the stock pan first, then installing the PPE pan with the OE fluid I have.

Question:

Won't the exhaust crossover pipe radiate heat into the aluminum pan?

About the only time you'd have any heat hitting the pan,is if you're stopped or stuck in really slow moving rush hour traffic,any other time there'll be enough airflow under the truck to keep the exhaust heat off the pan,but you could throw some header wrap on the cross over to miniumize any heat making it to the pan.
A couple drain and fills prior to doing the PPE pan and new filter isn't a bad idea.

 

[mdc1990zr1]

Well, sh*t.

Ed luck, I might not need it.

I have 7 qts. of Mopar fluid, I'm really debating getting some MaxLife and doing a couple drain and fills on the stock pan first, then installing the PPE pan with the OE fluid I have.

Question:

Won't the exhaust crossover pipe radiate heat into the aluminum pan?

Isn’t it better to get the OEM thermostat out of the housing and replace it with Jesse’ bypass to eliminate the original going bad and causing an overheating condition?

 

[mdc1990zr1]

I eliminated the coolant lines to the TMU/heat exchanger. Now, I can go a fair bit before my 8 speed gets to the 180 range.

I will install my PPE pan and Jesse's bypass soon, maybe over this long weekend. Then, my temps should stay lower even longer.

If you eliminated the coolant flow through the TMU exchanger, do you need Jesse’ bypass?

 

[caulk04]

I'd do the pan first Ed,as it might pull enough heat out,that you don't need the bypass.The bypass is easily added after the fact if you feel it's still needed. You can over cool the ZF, it's not really happy at temps under 150

Mine rarely gets over 150 and is living it's best life.

With the thermostat still in there, it's going to run at 180 anyway. Removing the coolant lines and or adding an aluminum pan will simply slow the climb.

 

[Wild one]

Mine rarely gets over 150 and is living it's best life.

With the thermostat still in there, it's going to run at 180 anyway. Removing the coolant lines and or adding an aluminum pan will simply slow the climb.

Actually it's been proven the ZF is happiest right around 160,temps under that screw up it's shift points in higher powered vehicles Jesse. It's actually pretty common knowledge now on the hi-po pages,that they can be over cooled. I was like you and thought you couldn't get them to cool,but after a few tests at the dragstrip i started to believe the hi-po shops like Satera / Sipple etc,who were saying you wanted the transmissions right in the 160 range for their best shifting and life expectancy,as the wifes 1320 always ran it's best numbers with the transmission between 160 and 165,under 160 it didn't shift quite right and was very inconsistent.
Ideally a Improved Racing high flow thermostat would probably be the way to go and delete the factory thermostat,as you can get them where they generally stabilize around 165F and hit full flow right around 180F

High-Flow Engine & Transmission Oil Cooler Thermostat

Improved Racing's Flow Series Motor Sport (FSM) oil thermostat is a universal solution that can be used with any oil cooler on any vehicle or industrial application flowing up to 20 GPM (75.71 LPM). Trusted by professional race teams, OEM's, and military contractors. Accelerates fluid warmup...

www.improvedracing.com

FSM-165

165ºF (74ºC)

160ºF (71ºC)

181ºF (83ºC)

Trans, Diff, PS Fluid

 

[pacofortacos]

I have a silly question, while I would like to do a pan and filter change, with the lifetime maxcare warranty I can't.
So, I was thinking of doing just a drain and fill a couple of times to do a pretty decent fluid flush.
Question. Will the drain plug reseal and not leak if that is all that is removed?

I realize that maybe no one has done this and won't know, but it is what it is.

Maxcare says lifetime means lifetime and to change the fluid according to the manual - which is never, towing or not.

I currently get a intermittent weird shudder when backing up a slight hill at light throttle. Not everytime.
Currently at 80k miles with probaby 1/3 of that towing.

 

[Wild one]

I have a silly question, while I would like to do a pan and filter change, with the lifetime maxcare warranty I can't.
So, I was thinking of doing just a drain and fill a couple of times to do a pretty decent fluid flush.
Question. Will the drain plug reseal and not leak if that is all that is removed?

I realize that maybe no one has done this and won't know, but it is what it is.

Maxcare says lifetime means lifetime and to change the fluid according to the manual - which is never, towing or not.

I currently get a intermittent weird shudder when backing up a slight hill at light throttle. Not everytime.
Currently at 80k miles with probaby 1/3 of that towing.

Buy a OEM pan and do a service on it yourself using OEM fluid,and nobody will be able to tell it's been serviced.

 

[RamDiver]

I have a silly question, while I would like to do a pan and filter change, with the lifetime maxcare warranty I can't.
So, I was thinking of doing just a drain and fill a couple of times to do a pretty decent fluid flush.
Question. Will the drain plug reseal and not leak if that is all that is removed?

I realize that maybe no one has done this and won't know, but it is what it is.

Maxcare says lifetime means lifetime and to change the fluid according to the manual - which is never, towing or not.

I currently get a intermittent weird shudder when backing up a slight hill at light throttle. Not everytime.
Currently at 80k miles with probaby 1/3 of that towing.

Why not add Jesse's thermal bypass combo kit and keep the OE assembly in case you have any tranny issues.

Even if the warranty group learned about it, they would be hard pressed to prove it caused a failure, whereas lifetime fluid?

As soon as the tranny fails and they decide it exceeds the value of the truck, they will only offer a buyout amount, as far as I know.

I've read posts to this effect, you might be able to find them with the search utility.

Did your extended warranty pay off?

Yes. Paid for itself 3 times over.

www.ramforum.com

.

 

[pacofortacos]

I've thought about doing those things, but the dealer said that maxcare has been cracking down on things.
I will be towing the boat in another month about 3-4k miles, I can't see a new pan looking old that quickly if something would fail - and you know it would hahaha.

It'll be a few years until the repair can exceed the cost of the truck as it's a 16.
The buyout should be the cost of the repair or value of the truck whichever is higher - which I'm ok with.
At that point then i take the truck and just fix it and do whatever I want to it.