i cant figure it out, the tranny overheats when idling and at a stop light if it sits for like ten minutes the temp skyrockets, but when im moving shes runs around 100 degrees i thought the gauge was bad but its working fine some is wrong in the tranny none of the tranny shops will give me any suggestions and the one i had the work done at they wont return my phone calls i need some help i use it to haul coal for heat in the winter time

dodgeman129's Sig:

95 dodge cummins 2500,auto, 4x4 ,#100 fuel plate FF,215 injectors,191 dv's, AFC twerked,starwheel turned all the way,rack plug,fuel lines upgraded, 3 1/2" downpipe to 5" straight exhaust,glowshift gauges,BD torque converter,BD valve body,BHAF, homemade intake,silencer ring M.I.A.,4.10 gears , dynojet #'s 263hp 656ftlbs broke tranny

from my understanding... if its an auto.. they all do that... the trannys tryin to make the truck go foward and when you have your foot on the brake its not good for it.... think of it like on fan blowing air to another fan... the second fan is gonna spin to.. thats a really simplified version of an auto... n if ur holdin the brake in drive the first fan keeps tryin to turn the second fan... to help with this problem... if youre gonna sit for more then a minute... put it into neutral or park.... thats wut my "master" auto mechanic teacher told me... so dont shoot the messenger if im wrong hahah

wisconsin redneck's Sig:

1995 12valver... 5in stacks off a pete , straight pipe, star wheel ff, #100 plate ff, afc ff, silencer ring?, tranny, egt, and boost, fuel pressure gauges. cold air intake, brand new hx35, cobra citizen's band radio with a 9ft whip, 12k winch, on board air, off road lights (7in)..
wheeler- 2002 honda rancher... 25in XXL mudlights XT30 warn winch
maybe some day my truck can do this!!!

i think thats a good explanation torque converters for dumies style

12valvetater's Sig:

1997 2500 4x4, 260,000 mi, nv4500, EMS lockout hub conversion, EMS vacum/delete, fully rebuilt engine, o-ringed head and block, 12mm ARP headstuds, 60 lb valve springs, 4k gsk, 4in down pipe to 5in behind the wheel, air dog2 165gph, Valair organic single disk, updated 5th gear nut, pyro and boost, street/towing cam from East Coast Diesel, NO fuel plate

yeh i thought so myself

thanks for the info, and its a auto , but it does it in park and neutral the only way it dont do it is to shut the truck off and let it cool down, or when im moving once the temp reaches 180 degrees it dont move it just sits and revs but i have never let it over 200 degrees and the sensor is in the tranny pan its always had the bd converter in it but i installed the bd valve body after i was having problems and the tranny shop i had it to told me it would help and told me to take both tranny coolers out and put one big one in and a fan on it. but guess what it didnt help, and like i said they wont return my phone calls

your pump may be shot

i had figured it was that, but some of the ones i have seen go bad make whining noises ,but no noises. or my converter went bad, cause when i hit full boost it slips but other then that it shifts like a champ good and strong no laging overdrive works like its suppose to i got a lock up switch but i hardy use it

could also be a plug in the system but i dont know alot about what these trannies do when they go bad i know they go bang when they go bad in the worst ways though

yea i know a buddy of mine had a 96 1500 gasser go out on him with a bang and the fluid turned black as night. its hard to find good help theses days,im a mechanic i can work on gassers all day long,but diesels and transmission i have only basic knowledge.

Chances are pretty good its either a a pump or b you need to clean the tranny cooler out they get dirty and clog up like an air filter. Try pressure washing the cooler first its the small radiator right in the front of the intercoller if that doesn't work have the entire trans hot flushed its a bit pricy but worth it change the trans filter and see what it does if it still overheats then I'm almost 99% possitive its the trans pump they don't go bad that often but they do. Now if its overheating in park or any other gear I'm inclined to say it is the pump but try the afore mentioned first and see what happens

davo79's Sig:

95 ram 2500 4x4 12v #0 plate custom intake 4k gov 60 pound springs 191dvs new era 370s bd exhaust brake single 6 in stack custom modded 120 gallon fuel tank in the bed

well youre probally right about the pump cause i done did the tranny fluid and filter and its got a new tranny cooler on it and flushed the lines, the pump probally couldnt handle i guess the converter or the valvebody, ill just have to bear it and get another tranny

while talking with my trans guy when the parents truck went down for the rebuild he said that the pump bodies can warp and cause a leak/bypassing of the fluid... so what he does with every rebuild he rotates pumps... he has one or two that he has sent out and had them "trued up" at the local machine shop, keeps the old one and puts one of the ones he already had in it's place... said he's been doing this for years and since he started doing this hasnt had problem one with the pumps... btw we have a pump layin in our basement... the dodge garage stuck the wrong one in it, only had two detents; we required 3 and 4th gear was no longer there... no idea if this is the right one for you or not; if it is... let me know... i could save you alot of money and we could make some back

tower_ofpower's Sig:

One thing i learned in college: DON'T!!! stick your fingers where you wouldn't stick Mr. Happy 89' W250, full fuel 1 1/2 turns, smoke screw needs adjustment, M&H M3 fuel pin and timing spacer, 366 spring, air dog 150,3" DP to 4" DP back bully dog exhaust with the front baffle cut out. Soon to be:transmission upgade, turbo and manifold swap, and injectors.

thanks tower ill keep that in mind and you dont live to far from me . i took and rode up to the tranny place where i had my work done and they are closed out of bussiness no wonder no one would answer my phone calls