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Showing results for tags 'transmission cooler'.
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I noticed my transmission temperature getting quite high when driving on trails or towing through traffic so I decided to add a secondary Derale 13900 transmission cooler in addition to the stock front mounted cooler. My truck is a 2020 Custom TB with the 5.3 and 6 speed 6l80e. This kit came with everything I needed except for a couple fittings, and the fan is wired to an ignition power source so it won't drain the battery. You can see that it is mounted to a winch mount that I had made, but without the winch there that would be a great spot to fit the cooler. Essentially I followed the return cooler line from the transmission forward until the hard lines split off into two rubber lines with the return going to the driver side of the truck. NOTE: The hard lines are 3/8" but the rubber line is 1/2" (learned that the hard way). I first held the cooler in place and measured what angle it needed to sit at and tacked together some mounts, then after a couple of iterations got it to where it fit and the skid plate did not interfere. I then finish welded, drilled, tapped, and painted the mounts. On the cooler itself, I mounted the 180 deg thermostat to the lower connection. With the cooler location determined, I then measured and cut the 3/8" rubber hose in the kit. I then clamped the return rubber line on the truck, cut the rubber hose, and connected the 3/8" cooler hoses to the pre-existing 1/2" hose on the truck. I used one 3/8-1/2 straight barbed connector and one 3/8-1/2 90 deg barbed connector. Some zip ties to tidy up the lines too. Wiring was simple as well, easiest way to get a for sure ignition power source was to get a fuse tap from autozone for a micro2 fuse and then you have a fused ignition source. Ran the power to the thermostat and then positive from motor to the other side of thermostat and the ground to the frame. The hole in the skid plate has an aluminum mesh behind it to keep small rocks out, and it's pretty high up so shouldn't see much abuse. Haven't given it a full test for cooling capability yet but the fan is nice and strong so I have no doubt it'll help. For about $200 total I'd say its a great upgrade for anyone who tows in the city or hits the trails on any steeper terrain.
2014 silverado 4.3 snow plow
foracle posted a topic in 2014-2018 Silverado & Sierra ModsI want to start by saying i understand i am working my truck a tad hard. And I AM going to continue. I just want to protect it as much as possible while doing that. I have a 2014 silverado with the 4.3 v6. 102,000 miles and never a problem. Owned since new. When i haul heavy up gravel roads my tranny gets hot like....220-240. I am a carpenter and pull materials and box trailers. I installed a snow plow this year which is snow moving so not a lot of air moving past radiator. I have hit 250 before. I had the transmission flushed at 50,000 and again at 100,000. But i would like to get my temps down. I am thinking an aftermarket fan? An additional tranny cooler? From what i read the tranny cooler is basically built into the radiator. And because the engine runs so hot you wont get too much cooling ability. Also it dosnt start actively cooling until 190? So i guess i need to adjust my thinking to the trucks 190 and up temperature range. But I am not happy with 230 for hours on end. I dont plow commercially just a few small drive ways. Any technical advice, not just opinions(lol) would help.
mnBison posted a topic in 2015-2020 Suburban/Tahoe & Yukon/Yukon DenaliI've currently got my 2015 Yukon XL (106k miles) in the shop to have the AC repaired...a different story... and the shop gave me the usual run down of issues that need to be addressed. 2 items that they mentioned where the transmission cooler lines and engine oil cooler lines were both leaking. They are not the first shop to tell me that these are both leaking (and make it sound like there is an immediate need for replacement). I recently replaced transmission fluid on this vehicle and inspected the lines myself and I agree that the oil cooler lines have residue around the couplers, I think leaking is a strong word for my what I am seeing. I don't agree that the transmission lines have any issues. My questions for everyone, is it really that uncommon to have some residue around couplers for these lines? When I haven't seen any evidence of oil/fluid on my garage floor and neither fluid is unexpectedly dropping, any reason you'd rush out to replace these? I certainly feel like a little residue on these lines is the reality of running a complex machine and until it is noticeably losing fluid, replacing them would be a waste of money. Thank you for any input!
I just purchased a new 2018 z71 LT, and was just wondering if it came with an auxiliary external transmission oil cooler? It has the trailering package, but not the Max package. Any help on this would be greatly appreciated. Thanks!
Hey Guys, I want to talk about transmission coolers for a minute...So, i drive a 2004 silverado crew cab with the 5.3 4x4 z71. I've got the cold air intake, the headers, exhaust and all. i'm eventually going to drop a cam in it and probably a slightly bigger stall. BUT my first priority is keeping that trans cool! So i'd like to talk with you guys about transmission temps and coolers. im wanting to get a bigger trans cooler than the factory one. (mostly for dyno purposes where theres not a lot of air moving besides the engine fan and the little fan they put down...) because i really dont need a bill for a new transmission... now i know theres a lot of them out there but i want your opinion. has anyone tried the inline aluminum fin ones? single pass? double pass? anybody doing a big one in front of the radiator and maybe and inline one somewhere else for extra cooling? Also, can you have TOO cool of fluid? from my understanding, besides keeping everything oiled, the fluid also acts as hydraulic fluid in your solenoids? would being too cool effect the performance of those? Thanks in advance for any input you guys have!
Transmission and engine temps
Swhite5.3 posted a topic in 1999-2013 Silverado & Sierra 1500My 1999 Silverado LT has 300+k miles and its got a temperature problem I'm worried about. Running down the highway at 75 the engine temp soars to about 235 but normal temp at 65 and below is 205-210. The temp comes down once I slow down but worried about it being a precursor to a larger problem. Also, the tranny runs at about 210°F when its warmed up and will start rising to 215 if left to idle. Everything I've read says it should be about 175°F. Any help would be appreciated
Another transmission cooler thread
Johnroger13 posted a topic in 2000-2014 Silverado & Sierra HDI currently own a 2013 Suburban LS 5.3. It has the code KNP transmission cooler. I want to add additional cooling for the transmission as I have see temps in the 240 deg range when towing my 4000 lb camping trailer over the various mountain passes in Colorado. I have read virtually all of the threads on here dealing with adding an additional cooler to my burb. I am certain I could add an additional cooler with ease. However I am a believer in the KISS principal and am looking for a larger replacement cooler that would connect to the existing factory oil lines with out having to modify them. If anyone has found a cooler like this I would appreciate hearing from you.
Overheating while towing
rcchemtech posted a topic in 1999-2013 Silverado & Sierra 1500I have an 08 Silverado 5.3 While towing the temp will rise to 230 or so when outside temp is above 75. When this happens I can turn the heat wide open and temp lowers to 210. I have replaced water pump, radiator, thermostat, and temp sending unit. I still see temp rising while towing, Does anybody have an suggestions?