High Transmission Temperature

[GrySql]

 

I have three questions in regards to second diagram in previous post:

 

1. Is the small radiator directly above the transmission cooler the inverter (electronics) cooler?

2. Do both the transmission and inverter coolers get their airflow from the lowest grill?

3. Does answers to 1 and 2 above apply to both FFH and C-Max?

 

Thanks.

First off, the illustrations in that prior post are for the PHEV. The HEV does not have the Aux transmission pump, see below.

Electronic Powertrain Cooling

 

The HEV Illustrations:

[Zathrus]

Thanks for the diagrams.

 

So second diagram above states the Transmission fluid pump (in HEV) is driven by ICE shaft (which means it does not run when in EV mode in HEV model).

 

First diagram shows Electric Powertrain cooling pump (item 6, P/N 18D474), but does not indicate what powers this pump. Anyone know what powers this pump?

 

Thanks.

[ptjones]

This morning I had the Trans Heater on for three hours and It was reading 148*F with garage temp of 57*F. My HVB was low so the ICE started up immediately and TFT dropped to 132*F quickly and back up to 136*F by the time I got to work in 2.4mi., an indication that the Trans pump is working some, OT was 41*F. :)

 

Paul

 

Thanks for the diagrams.

 

So second diagram above states the Transmission fluid pump (in HEV) is driven by ICE shaft (which means it does not run when in EV mode in HEV model).

 

First diagram shows Electric Powertrain cooling pump (item 6, P/N 18D474), but does not indicate what powers this pump. Anyone know what powers this pump?

 

Thanks.

It would have to be an electric motor powered by 12v battery I would guess. :)

 

Paul

[ptjones]

Here are the right numbers for the XGauge for Trans Fluid Temp for the ScanGaugeII:

 

TXD: 07E6221E1C

RXF: 0462051E061C

RXD: 3010

MTH: 000900500020

NAM: TFT

:)

Paul

Edited March 11, 2015 by ptjones

[billford]

I don't have a Scangauge yet, but I'm planning on buying one in the next few weeks...

 

Does anyone know if the grill shutters can be monitored with the Scangauge?

 

Also, what is the latest Scangauge version I should be looking for?

 

Thanks.

Edited February 25, 2015 by billford

[ptjones]

I don't have a Scangauge yet, but I'm planning on buying one in the next few weeks...

 

Does anyone know if the grill shutters can be monitored with the Scangauge?

 

Also, what is the latest Scangauge version I should be looking for?

 

Thanks.

ScanGaugeII looks like the best one to have. hybridbear said he could monitor shutter position, but I don't know if that was with a ScanGaugeII. Although my experience with a Web Cam and LapTop showed shutters were either open or closed, he saw with scanner different percentages of being open. :)

 

Paul

[ptjones]

I checked the Service Manual and they don't explain about changing the Transmission Fluid, just Back Flushing and Cleaning it. I wonder what the logic is behind that. I wonder if this is a EPA thing not wanting to dispose of it.

 

Paul

[acdii]

Its not a conventional transmission with clutch packs and such where the fluid is dual purpose, used for lubrication, and friction. Fluid wears out over time in that environment, especially when it gets overheated, but the eCVT is all gears and motors, so in theory, since its only used to lubricate, it should never wear out. In a perfect world that is. When assembled, if it was kept extremely clean, and all the parts fit perfectly and the seal on the unit was perfect, then it would last a lifetime, but we all know that only happens on the Space Shuttle.

[ptjones]

Looks like I got confused with cleaning Trans Cooler. There is a drain plug and filler plug for changing Trans Fluid. Changing Fluid isn't a trivial thing to do on a CMAX if you have to take the air cleaner off coming from experience with cut up hands replacing the Air Filter. Looks like FFH could be easier. I wonder if it is possible to do with out removing air cleaner?

 

Paul

[TonyHzNV]

When assembled, if it was kept extremely clean, and all the parts fit perfectly and the seal on the unit was perfect, then it would last a lifetime, but we all know that only happens on the Space Shuttle.

Even the Space Shuttle blew up! And Ford isn't NASA! If they were closer to being NASA, maybe MFT would work right. And maybe we would get free map updates! Ever read a TSB on the Space Shuttle? Now THAT'S a TSB! :)

Edited February 27, 2015 by TonyHzNV

[acdii]

Well the shuttle itself didnt blow up, the O-ring failed from being too cold prior to launch on the booster, that leaked a flame that burned into the main tanks, and that is what blew up. Shuttle was just a side effect of the big bang. The second shuttle disaster was another case of external causes, ice falling from the main tank damaged the heat tiles, and thats what caused the second failure.

 

 

Funny when you think about it though, our cars have ore computing power in the seats than the Apollo missions had.

[TonyHzNV]

Well the shuttle itself didnt blow up, the O-ring failed from being too cold prior to launch on the booster, that leaked a flame that burned into the main tanks, and that is what blew up. Shuttle was just a side effect of the big bang. The second shuttle disaster was another case of external causes, ice falling from the main tank damaged the heat tiles, and thats what caused the second failure.

OK, OK, I'll give you that. I know the story of the o-ring on the booster. And I have to agree that the Challenger was just a side effect of the big bang. I still remember the day it happened. January 28, 1986 I was at Ramstein Air Base, Germany picking up 6 brand new shiny Blackhawk helicopters for my unit. Offloaded them from the C-5A and put 'em in a hangar for the night. Saw the Challenger/booster exploding on the news that night when we got back to the BOQ. The TV in the lounge near the entrance was on and we walked in right in the middle of the news story. I remember thinking "what the heck is that?" when I saw the video on the TV and then they put up the caption "Challenger Tragedy" on the screen. That was sad.

 

I have to disagree with you however on the cause of the Columbia disaster. It wasn't ice, but a piece of foam insulation that broke off the Shuttle's external tank during launch and damaged the left wing. Upon re-entry, hot gases got into the damaged wing area and basically destroyed the internal wing structure making it unstable and caused the shuttle to gradually break apart. That, like the Challenger, was also very sad for me.

Edited February 27, 2015 by TonyHzNV

[lolder]

The sad thing was that the shuttle was truly always an accident waiting to happen and a lot of the technical people knew it. When it was first flown the odds of a complete loss were one in every 500 missions calculated by the techniques of the time. After the Challenger, they recalculated it to about one in 120. After Columbia, it was one in 9 so they grounded it. The shuttles sometimes launched with hundreds of open or continued maintenance items. It was the rare astronaut that wasn't fearful during a launch. It was designed to lower costs to orbit by a factor of 10 and instead raised it by 10. It was pretty much a failure which was determined by the original design with the solid boosters and fragile thermal protection. The Apollo Saturn 5 was safer. They could escape with the abort rocket at almost any time. A Russian crew did so with a similar system with a launch pad explosion that killed a lot of ground personnel. At least that's how I remember.

[corncobs]

The sad thing was that the shuttle was truly always an accident waiting to happen and a lot of the technical people knew it. When it was first flown the odds of a complete loss were one in every 500 missions calculated by the techniques of the time. After the Challenger, they recalculated it to about one in 120. After Columbia, it was one in 9 so they grounded it. The shuttles sometimes launched with hundreds of open or continued maintenance items. It was the rare astronaut that wasn't fearful during a launch. It was designed to lower costs to orbit by a factor of 10 and instead raised it by 10. It was pretty much a failure which was determined by the original design with the solid boosters and fragile thermal protection. The Apollo Saturn 5 was safer. They could escape with the abort rocket at almost any time. A Russian crew did so with a similar system with a launch pad explosion that killed a lot of ground personnel. At least that's how I remember.

That's why NASA is going back to the "old" system now called SLS.

Last year we went to the KSC and saw the transporter crawler being modified and also the launch pad being worked on. Pretty impressive I must say but nothing close to being there for an actual launch I'm sure.

 

How did we get that far off topic :)

[lolder]

That's why NASA is going back to the "old" system now called SLS.

Last year we went to the KSC and saw the transporter crawler being modified and also the launch pad being worked on. Pretty impressive I must say but nothing close to being there for an actual launch I'm sure.

 

How did we get that far off topic :)

Transmission temperature- post #1

Transmission reliability and shuttle sarcasm- post #33

Comments on shuttle reliability- several posts

 

Hey, do we have fun here or not?

[corncobs]

We sure do! I'm not complaining.

[TonyHzNV]

Do we need to start a Space Shuttle thread? Oh, corncobs, have a safe trip home this weekend!

[ptjones]

FORD has apparently changed their method of replacing Trans Fluid with putting Fluid thru the "Oil leveling plug hole" instead of the filler hole on top Trans for the CMAX, maybe FFH. :)

 

Paul

[acdii]

That's why NASA is going back to the "old" system now called SLS.

Last year we went to the KSC and saw the transporter crawler being modified and also the launch pad being worked on. Pretty impressive I must say but nothing close to being there for an actual launch I'm sure.

 

How did we get that far off topic :)

Because we are GEEKS! :) Also, correct, foam off the tank caused it, but I think ice did have something to do with it too, but yep, on the money about how it happened.

 

And, keep the trans cool and it will last a long time, has always been that way, and will always be that way.

[ptjones]

This morning I changed my Oil and Filter to Mobil 1 0-20W and K&N filter. I was going to check my Trans Fluid level, but first felt the Trans Cooler lines and they are cold, Transmission is hot. So I'm thinking the cooler is plugged up, 20 minutes of driving to AutoZone and back TFT hit 170*F, 56*FOT. Monday I'm going to make an appointment with Dealer to figure this out.

 

The scarey thing about this is MADMAX seems to be running fine, I'm getting good MPG's and the only reason I know I have a problem is I just got TFT figured out on the ScanGaugeII. I wonder how many other CMAXers could be having the same problem and not know it.

 

Paul

[ptjones]

Have an appointment for next Monday, they are busy. ;)

 

Paul

[ptjones]

My Trans seems to be working fine, but it is heating up little bit faster each time I use it. Today I went into town(5mi) then Shopping Center(5mi) and back to shop(5mi) and TFT was 199*F when I got back. I was going between 35-55mph, I was getting 150*F before. ;)

 

Paul

[FordService]

Have an appointment for next Monday, they are busy. ;)

 

Paul

Hi Paul,

 

Keep me in the loop with how your dealer trip goes; I'll check into some options. :)

 

Meagan

[ptjones]

Hi Paul,

 

Keep me in the loop with how your dealer trip goes; I'll check into some options. :)

 

Meagan

Thanks Meagan, will let you know. :)

 

Paul

[FordService]

Thanks Meagan, will let you know. :)

 

Paul

I'll keep an eye out. :read:

 

Meagan