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We had some pretty warm weather in the last few weeks and when i am in the city not towing anything and driving normal with my edge juice W/A set on 3 my trans would go over 200 deg(207 was the highest). Is this normal or excessively hot??? I have an 16" electric fan kicking around should i look at putting that in??? everything seems to be shifting normal, the truck has 140,000 kms on it. Any sugestions????
while driving around town in stop and go traffic your converter is generating a ton of heat since its not locked up. If you're in tow haul mode your converter usually locks up at around 30MPH and non tow haul around 50MPH. Once that occurs your trans temp should be coming down to normal. As long as the converter is slipping, heat is being generated, not much you can do about that except pay attention to it. If I'm parked in traffic or at a long light I throw my trans into neutral until I'm permitted to move. While in neutral your converter isn't engaged but your pump is still moving the fluid thru the cooler. It's a little extra work but I don't mind, rather keep the heat out of my trans, that sucker was a lot of cash and several new invented words later so I watch it like a hawk. Where is your probe taking that reading from? I recommend to everyone that it needs to come right off the front line on the trans, that's the hot line with fluid right out of the converter heading up to the first cooler. You get the no bull reading of what's up from that vantage point. The pan is a joke, the fluid has been thru 2 coolers by that point so accuracy is probably like within 20+ degrees. In a nut shell it sounds like your trans is acting normal to me so long as when you pick up speed things level out to the 150-160 range.
__________________ 2006 Big Horn 3500 4X4 5.9 Dually. Carli Pin-Top Kit, Upper and Lowers Carli Ball Joints. AFE CAI, Magnaflow 4" CAT Back, ISSPRO Gauges, DTT Billet Flex Plate, TCS Triple Disc Converter, SONNAX Input Shaft and ATS Tow Edition VB. Smarty S06 PoD.
while driving around town in stop and go traffic your converter is generating a ton of heat since its not locked up. If you're in tow haul mode your converter usually locks up at around 30MPH and non tow haul around 50MPH. Once that occurs your trans temp should be coming down to normal. As long as the converter is slipping, heat is being generated, not much you can do about that except pay attention to it. If I'm parked in traffic or at a long light I throw my trans into neutral until I'm permitted to move. While in neutral your converter isn't engaged but your pump is still moving the fluid thru the cooler. It's a little extra work but I don't mind, rather keep the heat out of my trans, that sucker was a lot of cash and several new invented words later so I watch it like a hawk. Where is your probe taking that reading from? I recommend to everyone that it needs to come right off the front line on the trans, that's the hot line with fluid right out of the converter heading up to the first cooler. You get the no bull reading of what's up from that vantage point. The pan is a joke, the fluid has been thru 2 coolers by that point so accuracy is probably like within 20+ degrees. In a nut shell it sounds like your trans is acting normal to me so long as when you pick up speed things level out to the 150-160 range.
What is the "BEST" way to tap into that "HOT" line to the cooler? Is there a coupler to use?
I know one cooler is in the front with the radiator and the other is on the drivers side top of the tranny that is cooled / heated by the engine coolant.
So if the temp of the engine coolant is in the 200* range wouldn't the transmission fluid be close to the same temp?
Probably a dumb question but they seem to cancel each other out
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06 CTD SLT Long bed air bags, ISSPRO EV guages trans, boost, EGT all stock for now
you are correct about placement of those heat exchangers and would be correct if that temp reading was taken as it exited the first liquid exchanger. from that cooler its on a journey forward of the engine to the second air cooled exchanger that is exposed to ambiant air temps so it will drop significantly more. That liquid exchanger is pretty small and fluid pumps by those fins pretty quick. I think the bulk of the heat loss on the fluid is up front where it's exposed to much cooler air. Mine has been known to get 200+ at times, always in traffic when the converter is slipping. Soon as the converter locks up it will drop back down to 160, even on a hot day so long as I'm cruising with air moving over the coolers.
__________________ 2006 Big Horn 3500 4X4 5.9 Dually. Carli Pin-Top Kit, Upper and Lowers Carli Ball Joints. AFE CAI, Magnaflow 4" CAT Back, ISSPRO Gauges, DTT Billet Flex Plate, TCS Triple Disc Converter, SONNAX Input Shaft and ATS Tow Edition VB. Smarty S06 PoD.
Yeah, on my 98.5 (no exchanger on the tranny) I put an electric fan on the front with a manual switch that kept me in the 140* range while pulling or in traffic....also helped the A/C a bit
I can not find one slim enough for my 06 that wont hit the back of the grill
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06 CTD SLT Long bed air bags, ISSPRO EV guages trans, boost, EGT all stock for now
Yeah, on my 98.5 (no exchanger on the tranny) I put an electric fan on the front with a manual switch that kept me in the 140* range while pulling or in traffic....also helped the A/C a bit
I can not find one slim enough for my 06 that wont hit the back of the grill
Poke around on the AC modification posts and you'll see several guys have fit 16" slim line fans on their 06's. I'm about to do the same thing for my AC sitting in traffic.
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06 Megacab 4WD,Transgo kit, 2" TopGunz kit,4.11, H-2 wheels,315/70/17 BFG's, Flashpaq, K&N, B&W goose, dual shocks at each corner up front, steering box brace, and a bigass dent in the tailgate because my wife just had to back the trailer...
never thought about putting an electric fan on it but went to look yesterday. So upfront closest to the Grill is the AC Condensor next you have your Intercooler. Then there is a space where a fan could go for sure, and you Trans cooler is next and sits' right on top of your Radiator. I'm not sure what temp the engines fan locks up and starts to cool down but it should serve this purpose while in traffic? I know my tranny getting warm is a concern of mine too since my gauge is starring right at me. For some reason I want to say I spaced out one time and say my trans go to 220 while sitting in traffic and then it just started getting cooler. This must have been the engine fan locking up and pulling air thru the coolers bringing the temps down. Maybe I'll let it get hot and see what the deal is. Once wont kill it, and that sucker is pretty new so now is a good time.
__________________ 2006 Big Horn 3500 4X4 5.9 Dually. Carli Pin-Top Kit, Upper and Lowers Carli Ball Joints. AFE CAI, Magnaflow 4" CAT Back, ISSPRO Gauges, DTT Billet Flex Plate, TCS Triple Disc Converter, SONNAX Input Shaft and ATS Tow Edition VB. Smarty S06 PoD.
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