I hit one heck of a sleet storm driving to work this evening. About 2 inches of really slick hard sleety-ice on the road. I was driving about 45 miles an hour, EGT's were at 1000*, tranny temps went to 180*, ambient air temp was 40*. Truck seemed dogish. It was raining like crazy. Once I hit clear pavement, tranny temps dropped to 110* and everything seemed normal. Was the truck actually working that hard pushing through the sleet? I wouldn't think so. Something electrical get wet? There was tons of water coming down. Tranny going @ 8000 miles? Pulled the tranny dipstick and nothing smelled burnt and it was nice light red. Was the back wheels breaking loose? I did get sideways a few times. I pulled the air cleaner and its bone dry as well. Since its fine now, I don't understand. I drove it 6 miles like that and as soon as the pavement cleared it was fine. Someone please put my mind to ease about this tranny.

 

spinning tiers probaly.

 

Driving through heavy rain/snow takes a lot power. You EGT's appear normal to me. I know my truck needs a lot more "throttle" when going through deep snow.

 

You see a 1000* at 45mph? That's far from right. I see 800* or so at 65mph, that a huge difference. You will generally be able to tell if your rears are spinning, it's pretty darn hard not to.

I can trudge through a foot of snow at 45mph and never get near 1000*, that's in 4hi of course but still. If everything is running back to normal now I have no idea what to tell ya, it's weird.

Was your Superchip programmer turned way up?

 

if your TC wasnt locked, that would account for the higher tranny temps too. what rpms where you turning at 1000*?

brett

 

The torque converter not being locked up sounds interesting. Thats why I think something was wet, I couldn't feel tires slipping. The torque converter is electronically locked in and out? I was in 2 wheel drive. I cannot remember the RPMs. Theres no way I smokin the tranny without that fluid stincking really bad is there. Sorry for the questions, but I drive 80 miles one way to work and don't want to end up walking. Houses are few and far between around here. Oh, and yes the Superchips was set on Performance if that helps diagnos the problem. Thanks guys and gals!

 

Megafast;

I am a new member, just joined and like the forum. My guess about your high temps is that the face of the radiator plugged with Ice not allowing any airflow. Theis could cause the high temps as the aftercooler was not doing any work.

Steve

2007 Gray Laramie quad cab 4x4

 

mega. my guess would be that you were in 4th gear, but the TC wasnt locked because you wernt going fast enough. 180* isnt hot enough to do any damage for the lenght of time you said you were driving. i wouldnt sweat it. your truck was having to work, and thats probably why your egts were high. if i were a betting man id say everything is going to be ok

brett

 

Thanks guys, I idled it around the location at the oil rig today and it seems fine. I was sweating the expense of tranny work, as now is not a good time. Thanks to everyone for putting my mind at ease.

 

Okay, today I finally got to take it down the highway (100 mile trip) for the first time since this incident. Tranny temps ran 130* A few quick accelerations, and they would climb 10 more degrees. Pull into town, idle at the post office for a couple minutes, drive 5 blocks home, still @ 130. Shift into park and walk away for 3 or 4 minutes (still idling) check guage and it says 150. I'm about to throw these guages away, they are really messing with my head. Truck seems a little doggish in the low end. doesn't really come alive until 35 pounds of boost. EGT's seem about 100 degrees higher @ highway speeds as well. Still worried.

 

I think the temp rising in park is valid. I do not think the fluid flows when in park or neutral? Someone chime in on this.. I think that is one of the things changing the stock valve body helps with... Your tranny temps sound very similat to my truck. I think you are doing fine.

On another note regarding your original post. Do you have a posi(limited slip option) rearend? Maybe you were spinning one tire and would not notice it as much as if you had a posi where the rear end would slip left/right? I think the ice on the radiator could have limited air also..

 

Tranny fluid does flow in "neutral" and does not flow in "park". When stopped after towing heavy, It is recommended to allow cool down for the turbo for 5 minutes or more. To add to this, your tranny will cool much better during this time in neutral. Additionally, if your truck has sitting a few days or more, put the tranny in neutral during warmup to get fluid to all the places it needs to be.