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View Full Version : 02 Chevy 2500 HD Trans temp question...


turbo5560
05-24-2007, 09:55 PM
I just got my new truck, it's an 02 chevy 2500 HD. The owners manual says thats it is ok for the transmission to get into the 260 degree range. Well today it sat around 200 all day in 90 degree weather pulling a trialer. Which by all means may not be a problem. But my old 1995 Dodge Ram 2500 would barely get 125 degrees pulling a trailer. Just wondering if 200 degrees was normal or not and about 150 degrees just driving around town with no trailer.

PLM-1
05-24-2007, 09:57 PM
If it helps, mine is usually just about cold but below the midway line. Sorry for the simplicity, I don't remember off the top of my head what the indexing temps are. BTW, I'm talking about an Allison.

turbo5560
05-24-2007, 10:03 PM
Ya, mine is not a diesel

westcoh
05-25-2007, 01:44 AM
I used to have an 01 2500HD that I used for towing a bobcat around with. On hot days, pulling a heavy load the trans. temp would always stay steady around 200. Dont think it ever went higher than that though.

spazfam
05-25-2007, 02:40 AM
I just got my new truck, it's an 02 chevy 2500 HD. The owners manual says thats it is ok for the transmission to get into the 260 degree range. Well today it sat around 200 all day in 90 degree weather pulling a trialer. Which by all means may not be a problem. But my old 1995 Dodge Ram 2500 would barely get 125 degrees pulling a trailer. Just wondering if 200 degrees was normal or not and about 150 degrees just driving around town with no trailer.

Do you have a snowplow prep package on it? We have an 05 Sierra HD and there was an issue where if the truck came from the factory with the prep package they were supposed to change the clutch fan from a 5 bladed to a 7 bladed fan and adjust the computer to allow the fan to come on more often. We had issues when we carried the snowplow, airflow was restricted and the running under tough cond. My tranny temp would spike to 200+ followed by a dramatic rise in engine temp. Had the fan changed and have not had a issue since.

teamoneoutdoors
05-25-2007, 06:44 AM
Do you havethe Allison tranny?

turbo5560
05-25-2007, 09:03 PM
No, I do not have the allison.

HBLandscaping
05-29-2007, 03:36 PM
I have an 02 2500 HD (Gas and No Allison). I just got in after a day of cutting grass and pulling a 8x16 trailer pretty much loaded down. I dont remember of hand but while out tomorrow pulling my trailer I'll keep an eye out on mine and see what mine reads. It was 92 here today and is suppose to be about the same tomorrow so I'll see what mine reads.

turbo5560
05-29-2007, 04:17 PM
Ya, it's about 90 degrees here today as well. I just got back as well from pulling a 8 by 16 utility trailer with two z's on it and it ran about 190 or so. It's pretty consistant at 190. I have about 500 miles left on my bumper to bumper warranty so if something is wrong I want to get it fixed asap. :)

lawnmaniac883
05-29-2007, 08:05 PM
260 is cooking your tranny fluid but they can run 200 all day long, the 230 point is where I would get a little worried.

HBLandscaping
05-30-2007, 09:34 PM
Mine ran just about 170-180 all today.

hosejockey2002
06-01-2007, 10:53 AM
Mine runs around 190 towing 5500 lbs., stop and go traffic in 85 degree temps.

RedWingsDet
06-03-2007, 02:31 AM
Mine is a 06 and is usually a tad under 200degreese in the 90+ heat towing my 20ft enclosed trailer. Sometimes when plowing I'd hit 200degreese.

when plowing this past year I never hit 200, but in my 01 I hit it twice at 200 I pulled over because that is when the fluid starts to break down. Atleast that is what I told and I never had this problem with my 06, just my 01

spazfam
06-03-2007, 08:23 AM
Ya, it's about 90 degrees here today as well. I just got back as well from pulling a 8 by 16 utility trailer with two z's on it and it ran about 190 or so. It's pretty consistant at 190. I have about 500 miles left on my bumper to bumper warranty so if something is wrong I want to get it fixed asap. :)

Ran all day Thur in 90 deg puling 16ft enclosed trans never exceeded 170-190. Check with the dealer there was a service bulletin on the clutch fans not sure what years it covered but it is covered under warranty other wise might be a 300 dollar fix. Had mine changed this winter and have not had a problem since.

TLS
06-03-2007, 08:29 AM
But my old 1995 Dodge Ram 2500 would barely get 125 degrees pulling a trailer. Just wondering if 200 degrees was normal or not and about 150 degrees just driving around town with no trailer.

Your gauge on that Dodge was wrong.

150 or so is normal solo. Around 200 pulling the trailer. You are using Tow/Haul.....right?

vadeere
06-03-2007, 01:42 PM
The 4l80e got around 200 a couple times. No damage, I would not want it to set there all the time but intermittent temps up there should be ok(e.g. runnung heavy, hills, high ambient temp, pushing the truck hard).

Herrick
06-04-2007, 11:28 AM
My 98 dodge runs around 150 empty, 160-170 pulling the 18' trailer with my little z on it. It's hit 200 a couple times pulling a car in heavy stop-and-go traffic... just turned 100k. Only problem I've got with it is that it likes to hunt between 1-2 when it's cold. I know a rebuild is around the corner, but I'm curious to see just how long it will last like this.