2019 RAM 4wd overheated performance temporarily reduced

technicholas · Jan 17, 2020

We had a good snow fall in Iowa 5-6 inches. I was driving into someone’s driveway and the vehicle kept complaining of 4wd overheated performance temporarily reduced the vehicle was slipping and there was no performance. The truck was at operating temperature. I was able to reverse just fine just moving forward. I have never seen this before. We have had other similar snow falls and I’ve spun all 4 tires up a hill before.

4WD high

thoughts
2019 ram limited v8

C0ps · Jan 18, 2020

technicholas said:
We had a good snow fall in Iowa 5-6 inches. I was driving into someone’s driveway and the vehicle kept complaining of 4wd overheated performance temporarily reduced the vehicle was slipping and there was no performance. The truck was at operating temperature. I was able to reverse just fine just moving forward. I have never seen this before. We have had other similar snow falls and I’ve spun all 4 tires up a hill before.

thoughts
2019 ram limited v8

Possible you had it on 4 wheel low?

LincolnSixAlpha · Jan 18, 2020

There was another discussion in these forums regarding this issue where someone was utilizing their 4x4 system and climbing a steep offroad hill with same/similar results as what you experienced with the 4x4 system overheating. I suspect this is related to your transfer case in that you have the Limited model which is using the new Borg Warner EMOD, or electromechanical Transfer Case #48-11. This transfer case uses clutch packs to emulate 4WD on-demand (aka your "auto" button). The rebel uses the #48-12 case which is part-time 4WD, with no ability to use the 4WD system in Auto. This transfer case is a traditional transfer case with no clutch pack like yours, so overheating the situation like the other T-case.

Now why it simply overheated in driving in 5-6 inches of snow is another question altogether. I'd think the system would be a bit more robust than that.

iamtheav8r · Jan 18, 2020

technicholas said:
We had a good snow fall in Iowa 5-6 inches. I was driving into someone’s driveway and the vehicle kept complaining of 4wd overheated performance temporarily reduced the vehicle was slipping and there was no performance. The truck was at operating temperature. I was able to reverse just fine just moving forward. I have never seen this before. We have had other similar snow falls and I’ve spun all 4 tires up a hill before.

thoughts
2019 ram limited v8

You had it in 4WD Auto I assume? If so...use 4WD High next time.

technicholas · Jan 18, 2020

iamtheav8r said:
You had it in 4WD Auto I assume? If so...use 4WD High next time.

I was in 4WD high

iamtheav8r · Jan 18, 2020

technicholas said:
I was in 4WD high

very odd. It does sound like the viscous coupling clutches were overheating. If that's all it takes, I'd not be happy.

Jack Whitefield · Jan 18, 2020

I'm going to agree with Lincoln Six. I'd say it was probably your transfer case overheating. Have the dealer check the fluid level, and/or change the fluid.

Patsy1099 · Jan 18, 2020

lharrell799 said:
I'm going to agree with Lincoln Six. I'd say it was probably your transfer case overheating. Have the dealer check the fluid level, and/or change the fluid.

agreed. First thing I would check would be the fluids and then the clutches.

technicholas · Jan 18, 2020

Patsy1099 said:
agreed. First thing I would check would be the fluids and then the clutches.

Talking it in for service this morning

technicholas · Jan 18, 2020

iamtheav8r said:
very odd. It does sound like the viscous coupling clutches were overheating. If that's all it takes, I'd not be happy.

The code was clutch overheated

Patsy1099 · Jan 18, 2020

technicholas said:
The code was clutch overheated

thanks for the update. Now the question is why and what is the solution

technicholas · Jan 18, 2020

Patsy1099 said:
thanks for the update. Now the question is why and what is the solution

They have my vehicle. I’ll provide updates. I’ve had all kinds of issues with it. AC sucks, Wiper Motor been replaced, 3rd brake light replaced, headliner replaced.

Pribilof · Jan 18, 2020

Wow, I was thinking of buying the wife a new ram limited but if the four-wheel drive system can't deal with a half a foot of snow that's not going to work for us in Colorado mountains.

C0ps · Jan 18, 2020

Pribilof said:
Wow, I was thinking of buying the wife a new ram limited but if the four-wheel drive system can't deal with a half a foot of snow that's not going to work for us in Colorado mountains.

I'm in Canada with 3 feet of snow. Been driving in places you wouldn't take a snow plow to. It's been 100 percent stable in 4x4

iamtheav8r · Jan 18, 2020

Pribilof said:
Wow, I was thinking of buying the wife a new ram limited but if the four-wheel drive system can't deal with a half a foot of snow that's not going to work for us in Colorado mountains.

I think it's safe to say that this is a one-off situation. Common sense would tell you that.

technicholas · Jan 18, 2020

iamtheav8r said:
I think it's safe to say that this is a one-off situation. Common sense would tell you that.

The dealership called me the new service manager they are not sure what to do. No other star cases like this.

DesertRebel · Jan 18, 2020

LincolnSixAlpha said:
There was another discussion in these forums regarding this issue where someone was utilizing their 4x4 system and climbing a steep offroad hill with same/similar results as what you experienced with the 4x4 system overheating. I suspect this is related to your transfer case in that you have the Limited model which is using the new Borg Warner EMOD, or electromechanical Transfer Case #48-11. This transfer case uses clutch packs to emulate 4WD on-demand (aka your "auto" button). The rebel uses the #48-12 case which is part-time 4WD, with no ability to use the 4WD system in Auto. This transfer case is a traditional transfer case with no clutch pack like yours, so overheating the situation like the other T-case.

Now why it simply overheated in driving in 5-6 inches of snow is another question altogether. I'd think the system would be a bit more robust than that.

here's the other thread:

Overheating the 4x4 system

Went out today to do some more exploring with my son. Was wet and muddy. Ended up getting a message on my dash that the 4wd system had overheated and that 4wd performance is reduced. In the video you can see that the truck basically keeps switching back and forth to 2wd mode at around the 3:18...

5thgenrams.com

technicholas · Jan 18, 2020

DesertRebel said:
here's the other thread:

Overheating the 4x4 system

Went out today to do some more exploring with my son. Was wet and muddy. Ended up getting a message on my dash that the 4wd system had overheated and that 4wd performance is reduced. In the video you can see that the truck basically keeps switching back and forth to 2wd mode at around the 3:18...

5thgenrams.com

I agree I wasn’t like trying to drive out of a ditch or using the vehicle to snow plow.

airgas1998 · Jan 18, 2020

technicholas said:
They have my vehicle. I’ll provide updates. I’ve had all kinds of issues with it. AC sucks, Wiper Motor been replaced, 3rd brake light replaced, headliner replaced.

where at in iowa did you purchase it from? received mine from deery bros in waterloo...

technicholas · Jan 18, 2020

airgas1998 said:
where at in iowa did you purchase it from? received mine from deery bros in waterloo...

Same company just in central Iowa.

2019 RAM 4wd overheated performance temporarily reduced

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