Takes a long time to get to operating Temp

[Colfaxent]

In any weather it seems to take a long time to get into the 190s. I can drive 15 to 20 miles to get it there. It doesn't appear to be the thermostat as the temp will finally go into the 200s then drop back and stay in the 190 range when the stat opens. My old 6.4l warmed up much quicker and also came with a grill cover to use in real cold weather to keep it at operating Temp. What are you guys seeing?

 

[RaptorTremor]

My truck takes a long time too, about 5 miles around town for the engine, probably closer to 10 for the trans, thats in 80-90° weather. I believe diesels take longer to get up to temp.

 

[Colfaxent]

My truck takes a long time too, about 5 miles around town for the engine, probably closer to 10 for the trans, thats in 80-90° weather. I believe diesels take longer to get up to temp.

Yes diesels do take longer but this one seems extremely long. Glad you mentioned the trans temp. These 10 spds seem to run quite high most of the time. Very often the trans temp is way above the engine temp just in normal unloaded driving.

 

[RaptorTremor]

Yes diesels do take longer but this one seems extremely long. Glad you mentioned the trans temp. These 10 spds seem to run quite high most of the time. Very often the trans temp is way above the engine temp just in normal unloaded driving.

Yeah the 10 speed gets pretty warm. Mine sits at 210 most of the time. The thermostat for the engine opens at 194°. I could beat on the truck and it never really gets past 196° to 198° while the trans hits upwards of 220°

 

[Chris21667]

Yeah the 10 speed gets pretty warm. Mine sits at 210 most of the time. The thermostat for the engine opens at 194°. I could beat on the truck and it never really gets past 196° to 198° while the trans hits upwards of 220°

yea it 30 degrees here and it will take 5 mins after 10 mins of remote starting but engine will be 120 degree after 10 mins and drive down the road for about 5 mins and its at 190 and the trans is 210 unloaded and when towing it would be 220

 

[Colfaxent]

yea it 30 degrees here and it will take 5 mins after 10 mins of remote starting but engine will be 120 degree after 10 mins and drive down the road for about 5 mins and its at 190 and the trans is 210 unloaded and when towing it would be 220

These trans temps are very high especially with the idea that it doesn't need to be changed until about 3xs the interval of most tranny's. My 6.4l would not get this got unless I was towing my 15k 5th wheel in the mountains. These temps make me think that the torque converter doesn't lock up at lower speeds like 45. Maybe @Fordseniormaster can chime in on this. These trans temps are extremely high and the engine warm up is very slow. Seems like the trans doesn't have a very good cooler when normal driving the trans is hotter than the engine.

 

[GaryDE]

These trans temps are very high especially with the idea that it doesn't need to be changed until about 3xs the interval of most tranny's. My 6.4l would not get this got unless I was towing my 15k 5th wheel in the mountains. These temps make me think that the torque converter doesn't lock up at lower speeds like 45. Maybe @Fordseniormaster can chime in on this. These trans temps are extremely high and the engine warm up is very slow. Seems like the trans doesn't have a very good cooler when normal driving the trans is hotter than the engine.

Are there any aftermarket trans coolers available that would make these numbers more comfortable or would that not be the appropriate thing to do? Sounds like it's normal to run with these temps?

 

[Chris21667]

These trans temps are very high especially with the idea that it doesn't need to be changed until about 3xs the interval of most tranny's. My 6.4l would not get this got unless I was towing my 15k 5th wheel in the mountains. These temps make me think that the torque converter doesn't lock up at lower speeds like 45. Maybe @Fordseniormaster can chime in on this. These trans temps are extremely high and the engine warm up is very slow. Seems like the trans doesn't have a very good cooler when normal driving the trans is hotter than the engine.

I would agree I was concerned but when I looked at the guage it's in the middle and didn't have any issues so figured for this truck it is normal ... My Jeep 4.0 operating temp was 210 was normal and over heating was 240 plus so 220 wasn't bad ... I don't know about my f150 it doesn't have sensors that tell me the trans temp but engine temp is always around 200 on the 5.0 so I wasn't concerned but was surprised ... But nothing was in the red and the truck did great so just coughed it up as I am learning the truck

 

[Red Forman]

I think a big part is fluid technology coming a long way. The thinner the fluid, the better efficiency and tighter tolerances you have. In turn it gets hot but this is just the new normal for operation.

 

[Colfaxent]

I would agree I was concerned but when I looked at the guage it's in the middle and didn't have any issues so figured for this truck it is normal ... My Jeep 4.0 operating temp was 210 was normal and over heating was 240 plus so 220 wasn't bad ... I don't know about my f150 it doesn't have sensors that tell me the trans temp but engine temp is always around 200 on the 5.0 so I wasn't concerned but was surprised ... But nothing was in the red and the truck did great so just coughed it up as I am learning the truck

That is why we used Forscan to show the temps on gauges. The temp gauge that is original is about as good as the old idiot lights. This is Ford's way to disguise the true temp and give a level of comfort. Trans temps in the 200s all the time lessen the longevity of the fluid. We better get ready to flush fluids on a regular interval. I will use 30k intervals.

 

[Chris21667]

Ye

That is why we used Forscan to show the temps on gauges. The temp gauge that is original is about as good as the old idiot lights. This is Ford's way to disguise the true temp and give a level of comfort. Trans temps in the 200s all the time lessen the longevity of the fluid. We better get ready to flush fluids on a regular interval. I will use 30k intervals.

Yea I did the same I love forscan ... But the truck is self will have to have more maintenance then a f150 anyways so ... I am fine with that .... Will just take to the dealer and have then fuck with the trans

 

[forcebwu19]

Are there any aftermarket trans coolers available that would make these numbers more comfortable or would that not be the appropriate thing to do? Sounds like it's normal to run with these temps?

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Pretty sure this works for our trucks also. Found a decent youtube video on it and it does seem to bring trans temps down.

 

[SVT4X4]

Trans Temp controlled by a thermostat now and they are designed to run much higher temps with full synthetic fluid.

 

[ScottK]

Are there any aftermarket trans coolers available that would make these numbers more comfortable or would that not be the appropriate thing to do? Sounds like it's normal to run with these t

 

[ScottK]

Why would you worry about it? Do you not trust that Ford knew what they were doing?

 

[rhines81]

I can leave any one of my cars idling in my driveway for 10-15 minutes and they don't really get a to warm temperature. I can get into the same cars, drive for less than 2 miles and they get warm by then (under 5 minutes), strange. I have sat in my cars in the driveway and put them in drive with foot on the brake, seems to help them warm up faster, but still, get in them and drive after a 30 second wait after starting and they warm up quickly, just fine. Idling to warm up is just a waste of time and fuel. Sometimes you want your car to warm up to get rid of the ice on the windshield ... faster to just scrape it off and go!

 

[Colfaxent]

Why would you worry about it? Do you not trust that Ford knew what they were doing?

I trust Ford or I wouldn't have bought their new and used vehicles since 1979. Most of this time having 4 vehicles between my wife and daughters. All of which have never had an internal trans issue because of good maintenance. What I have known is that trans fluid starts to break down at 200 and it's cooling, lubricating ability and longevity go down exponentially above that. The majority of transmission failures come from worn out contaminated fluid. The majority of transmissions fail due to lack of maintainence , changing of fluid regardless of brand. Our trucks are built to tow and towing causes very high trans fluid temps. Again high temps lead to fluid break down which leads to trans damage. That's why I care about it, I don't worry.

 

[PapaRaptor]

I'm not worried about the high trans temps it is engineered for it. I agree it takes a long time for the engine to warm up. That is pretty much the case with all turbo diesel trucks even the older ones. That is why Ford made the supplemental heater option, heated steering wheel and windshield de icer.

If the engine is under load and there is some turbo boost it will heat up faster than if it just runs in the driveway. You can always plug them in to add a small bit of heat to them ( may help). I am not one to let my truck sit and idle even with the high idle switch. I also avoid short trips with it. It requires some planning.