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Has anyone ever tried changing the aluminum line to rubber hose crimps for the transmission and oil cooler lines out for AN fittings on and 07-13 Sierra 5.3L? I have a 2013 Sierra and the cold here in Canada isn’t kind to these crimps as I believe the rubber and aluminum have different shrink rates because of difference in material causing them to leak. Replacing them will not solve the problem as the will just do the same thing every year. So what I want to know is if anyone has successfully done this and what fittings did you use?
Tony629578 posted a topic in 2014-2018 Silverado & Sierra TroubleshootingJust recently bought a 2015 GMC Sierra 1500 SLE 4x4. I am the third owner. Shortly after buying the truck the transmission grenade’d itself. I’m at 97k miles so still under the 100k mike power train warranty, however I was 21 days outside of the 5 year part of the warranty. I reached out to GM after returning from deployment to try and get some help and hope that they would honor all or maybe partial warranty. Needless to say no help from GM! Shopped around for shops to rebuild and ended just buying a remand one for 2.7k. So here are my questions: 1. Flush the current cooler or buy an upgraded one? 2. If I should buy an upgraded one then how big? Also should I bypass the current one in the radiator to have a separate cooling system? 3. I’ve heard of people deleting the transmission oil thermometer to achieve a cooler temp. So say do this because heat is the enemy, others say the trans is built to operate at a certain temp. 3.What temperature is the best operating temperature? 4. Should I have the new transmission re flashed or swap the one from my grenade’d one into the remand one? 5. What’s the best way to flush the current cooler if I don’t change it? I’m afraid if I just try to flush it then it won’t get it clean enough and I’ll mess up the new transmission! That’s all I can think of right now! Thank you in advance for your time and expertise!
I currently have a 2017 Silverado LTZ with 8 speed transmission thats lifted 4" with 35" tires. The truck is currently at 39K mileage and I was looking into upgrading my transmission cooling to take the wear off my transmission by allowing it to run cooler. My thought was to run a mishimoto transmission cooler, B&M transmission pan along with running the Mobil 1 Synthetic LV ATF HP to avoid the possible shudder everyone is having with there transmission. Couple of concerns that I have is doing that will increase my fluid capacity which I have no way of checking the correct level since these transmissions have no dipstick. Any aftermarket dipstick like the one from B&M doesn't have an indicator mark, you have to mark it once you first install it. Any ideas around this to ensure I am getting the correct levels? Don't want to overfill or under fill my transmission. Or is this whole idea just a bad one all together?
Eddie 70 posted a gallery image in General/Off Topic
From the album: Truck StuffShowing the way the transmission cooler is attached to the AC condenser.
turbo oil line for power steering cooler
barry G posted a gallery image in General/Off Topic
Cooler hose leak
lovecars posted a topic in 2014-2018 Silverado & Sierra TroubleshootingWhenever I buy a new vehicle it's my habit to always check all around the truck, inside engine compartment, under seats, etc.... my first new car was a 1976 GMC JImmy... So I'm a veteran at new cars, trucks. I have also always worked on my cars, From Corvettes, 4x4's, etc I've owned. Over the years of inspecting my brand new cars/trucks/etc. I've found screws, plastic plugs, wire ties, sound deadener goop from a Cadillac, and over 50 frame clips for gas aluminum tubes on a 1975 Dodge Ramcharger 4x4 (jingling on bumps) ass wipe line guy decided to screw with someone.... Well enough war stories. On my 2105 Siverado y did the same I saw a hose pretty close (1") to the crankshaft pulley..... tried to move it away but it didn't, so I left it alone.... well my truck with 12000 plus miles decided to leak a bunch of oil one day as I was working on passing a wire from the engine compartment to the passenger compartment, i noticed about a pint of oil leaking from the front of the motor. Well, it turned out that the hose that was too close when i bought the truck it finally decided to fall in love with the crankshaft pulley and it got a hole rubbed by it.... I was glad it happened close to home and not 1000 miles away on a long 6 hr freeway trip. 2 hr fix... Dealer issues not counted... it took the 5 days to get to it... maybe they had better customers that me coming in as I was told by the service manager....
My issue is my fans wont turn on. I replaced the relays in the fuse box that did not work. I took the relay cap off the low fan relay and noticed it wasnt closing the connection all the way. Im read that this happens when there is not enough power to close the switch? So this means i might have an exposed wire somewhere grounding out? Does anyone have any insight to this? Or does anyone know what color the wire is from the fuse box so maybe i can try and trace this wire down and find the issue. So far i havent been able to find much. Thank you
RTIC SoftPak 40 Coolers
Smoothbassman posted a topic in Off-TopicJust got this cooler in from RTIC. Took it on the road with me for two days in my Silverado, and I already love it. Check out the quick video of it that I did in my hotel room. I also own and RTIC 20 cooler and a 20oz and 30oz tumblers. Like them all! Best of all this one was only $150 bucks versus the YETI at over $300! I already order a smaller unit to use as a lunchbox at work, or on my ATV or Motorcycle! https://www.rticcoolers.com/shop/coolers/softpak
power steering pump whine
llewop posted a question in Ask the GM TechnicianMy 2004 GMC Sierra 2500HD has been fitted with new Power Steering Pump, remanufactured /new power steering gear box, new remanufactured hydroboost and new hoses. The New GM pump is quiet for a few hundred miles then begins to whine and then gets to whinning all the time. The steering works just great and the brakes work great. it does not whine with pressure on the brake or when turning the wheel. I have been through 4 pumps now in a year to try and get it to quieten up. The pump never made a noise when the truck was new until i had a mechanic screw with the gear box and i had to replace it. Could it be a restriction in the fluid cooler? Does anyone have any experience with this maddening problem?