which transmission cooler line is which

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expert reply by: Jameson C Ask The Experts a Question >> • i'm installing an external transmission cooler so i need to know which line is out, and which line is return. Please enable Cookies and reload the page. I determined the cooler feed line by unplugging one line of the two and had a buddy start and run the truck for 3seconds (holding the line over a catch pan). Whatever system is used will have a pair of solid metal lines (a supply line and a return line) running from the transmission to the cooler at the front of the vehicle. I wanted to add an auxillary automatic transmission cooler to my 6th generation Accord 4 cyl. The easiest way is to use an infrared temp gun. Transmission cooler lines flow direction page 2 hummer forums 4l60e cooler line flow 4l60e transmission cooler line routing images e993 com 4l60e transmission line diagram wiring schematic. The cooler one is returning to the transmission. First Prev 2 of 3 Go to page. You may need to download version 2.0 now from the Chrome Web Store. 5. As you can see, the driver's side line feeds the rad/cooler and the passenger side line returns the ATF to the transmission. 1 of 3 Go to page. 2. G202Go. gunzandgearz gearzandgunz. Cooler line routing OEM cooler in bottom tank OEM cooler in side tank Cooler orientation Resources. Note: All except TH200C and TH2004R- which are opposite of the above. 1. When Automatic Transmission Fluid (ATF) is cold it is viscous. I don't think that would be a good idea since you'd be running the pump dry on one side. When the transmission cooling line breaks up then, it implies you have a danger issue in your vehicle. I think I found the answer here. these lines don't come from engine, power steering has power steering fluid NOT TO BE MISTAKEN FOR TRANSMISSION FLUID, TOTALLY DIFFERANT !!!! Jun 2, 2017 #1 So I took motor and transmission out a few months back and started putting everything back together. There are 4 main types of transmission cooler line types including: Metal; Rubber; Nylon Braided; Steel Braid Does anyone have any idea which line is which? To remove the short hose between the 2 rigid lines, you best stick a thin screwdriver or alike in between the hose and the tube and work it … Does the top line from radiator go to top port on transmission? Which way does fluid run through system I think I may have them connected wrong running fluid out when should be ran in If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Connect both transmission cooler lines at the radiator. Bulletproof cooling system On the other hand, I could stick both disconnected hoses in a container of Honda ATF and see which one starts empty and whic one starts to fill up. I did a search and couldn't come up with the answer. The rear line is the return line on a C4 transmission like what you have in your 1983 Ford Mustang. You want to install the cooler on the return line. Discussion Starter • #1 • Jan 18, 2009. . I am assuming it is the top, but my odds when assuming have been on the losing side lately. As operating temperatures increase, the ATF becomes hotter and thinner, It's then directed through the core where it is cooled. Find the oil cooler lines. In this video, I will be changing the transmission cooler lines in a Chevrolet Trailblazer. Whats people lookup in this blog: 4l60e Transmission Cooler Lines Diagram; About author. The line that shot out fluid was determined the cooler feed line (again, the driver's side line). Go. So- OUT the bottom, IN the top. These lines are made up of rubber hose & aluminium metals. Sante Blog . Cooled fluid travels from the in-radiator cooler to the transmission through the lower line (bottom of rad). Most often the lines are metal, with flexible hoses connecting between the engine assembly to the cooler fixed on the frame. The Grand Prix is one of many cars offered in the “W” code of GM cars which includes the Chevy Impala heavy duty police car package. Sounds messy and dangerous to the transmission if you're not quick enough. This will cause your transmission to have very poor performance. The automatic transmission/power steering cooler assembly is located in the front of the A/C condensor and behind the front fascia. Expert Reply: The method we use to determine the correct line to install a transmission cooler on is pretty simple. Only run it until you figure which is which - 30 seconds max, I would hope. Discussion Starter • #1 • Nov 29, 2007 (Edited) I have an 05 Altima, with the 3.5 engine and Auto 5 speed. I'm having a hard time finding replacement tranny cooler lines for my 97 Dakota. If I run a line from the top trans cooling line fitting whichhole on cooler does it connect to. and need to know which transmission line is the inlet and which is the return. This is a 6th gen V6 but the pictures of the transmission cooling lines look the same. Cut the line a couple inches back. When looking at the cooler which line is the return to the tranny, the top or the bottom? Cloudflare Ray ID: 60e0daf9ffce97c6 If it is mounted vertical, it has to fill from the bottom up. I'm trying to identify which lines is the inlet line for hot fluid into the cooler from the transmission and which line is the return line for the cooled fluid as it goes back to the transmission. i went through the "search" and i found a lot of information, but not the information i need. if rubber lines, they go to a transmission cooler , looks like a small radiator, rectangular , supply / return. Sun Jul 17, 2011 5:41 am. Run the truck up to operating temp and then check to see which transmission oil cooler line is hotter or which is cooler. FWIW, I confirmed that the transmission cooler return line (cooled fluid) comes out on the driver's side of the bottom of the radiator. their cooling lines from trans, supply / return . He hooked up his cooler to the driver's side hose. This is the most noticeable signs of low transmission fluid Transmission fluid levels are critical when it comes to how your car shifts. Install air inlet duct at grill. Thread starter Jared31; Start date Jun 2, 2017; Prev. If the flexible hoses have a replaceable clamp to the fixed lines, … Not only will the car have issues shifting, but may start to make noise as well. Another way to prevent getting this page in the future is to use Privacy Pass. Transmission Cooler, Which Line is Which? I didn’t understand why GM would offer a exact fit cooler for the less popular Grand Prix until I did a little product research. 1; 2; 3; Next. Transmission Location: 30‐40LE Rear: 404, 413, 470 Top: 41TE, 41AE, (604) Front: 42LE Top: 42RLE Top: 45RFE Bottom: 4HP18 (AMC) Usually Water Cooled : 500, 518 Rear: 545RFE/68RFE Bottom: 62TE Closest to the Front of : the Transmission 670: Top 727 (TF‐8) Rear 904 (TF‐6, All Ver-sions) Rear 999 (32RH) Rear AR4 (Premier) Usually Water Cooled AS68RC: … That's why I said 30 seconds max, it should take 1 second to figure it out . Do that for the cooler and the heat exchanger. Go. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. The stock transmission cooler is in the radiator, so just disconnect the transmission cooler lines, and hook up a piece of tubing to the inlet and outlet. . Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Cancel reply. Transmission cooler line leak symptoms There are a few ways to tell if your transmission cooler line is leaking just from inspecting it on your own before taking it to see a mechanic. The transmission cooler kit you purchased will include the mountingtransmission oil cooler hardware needed to mount the cooler. Automotive Network, Inc., Copyright ©2021, http://www.honduh.com/showthread.php?threadid=34. The cooler should be mounted ½ to 1 inch in front of the radiator or A/C condenser for vehicles with air conditioning. Later on because of the freezing temperatures, he switched sides. The lower transmission fitting is the outlet from the tranny to the cooler. That becomes your fitting the rubber line goes on. No comments so far. 01-26-2004, 04:02 PM. power steering has no cooling . The hotter one is taking fluid to the transmission oil cooler. Dae has a great write up for his cooler, but that didn't help me either. If there are two transmission coolers (the main cooler and an auxiliary cooler) there will also be lines connecting the two. (adsbygoogle = window.adsbygoogle || []).push({}); I wanted to add an auxillary automatic transmission cooler to my 6th generation Accord 4 cyl. Transmission cooler lines. Be first to leave comment below. Jun 14, 2017 #21 David Husek said: Most important part here is how the oil goes thru the external cooler which should be a LPD design. ! . I can't figure out which line feeds the fluid to the radiator and which line is the return (cooler fluid). Thread starter Jared31; Start date Jun 2, 2017; 1; 2; 3; Next. Mounting the Cooler. Member : Join Date: Jun 2011. 56 Posts . I don't know how the tranny cooler lines go. Next Last. The most obvious sign of a transmission cooling line leak is the presence of transmission fluid. 4L30E transmission cooler lines. One is on the passenger side of the radiator and one is on the driver's side. Does anyone have any idea which line is which? Reply With Quote : 08-13-2011, 12:12 AM #2: ridefast. Next Last. Install both radiator mounting bolts. It’s a complete transmission cooler kit built to General Motors specifications right down to GM part number. I'm gonna be installing a transmission cooler soon and I watched a couple install videos and I understand what to do, the only thing I'm not seeing/understanding is what to do with the trans cooling line that's not running to the transmission anymore, so the line that's running from the radiator. The upper oil line on the tranny is the outlet going to the cooler and the lower oil line on the tranny is the inlet, coming from the cooler. Transmission cooler lines. This would the line that you would install the transmission cooler on. To determine which line is the return line you will want to start with your truck totally cooled off. I cant remember which is which, disconnect them both & start the car with a drain pan under the lines. I did a search and couldn't come up with the answer. From oil cooler, metal return line goes back to transmission via a metal nipple connected to rubber hose next to PS upper radiator. Add a comment. 1/2" transmission line can be obtained from napa. The unique Tru-Cool design allows the colder, thicker ATF to flow more efficiently through two open bypass channels positioned at the top of the cooler. Performance & security by Cloudflare, Please complete the security check to access. Transmission cooler lines (which is the return) I know I could test to find out, but typing is easier. Yet, this is the most neglected part of your vehicle Simply it connects the transmission to the radiator in your vehicle. Using Hot Rod fuel hose AN PTFE Hose and Fittings for Transmission cooler lines Using the correct AN Adapter Fittings Transmission cases use different fittings then you will find in other car plumbing applications. 6. The fittings going into the tranny need to be saved. Transmission cooler lines come in all shapes and sizes. One line enters at the bottom of the radiator, the other enters at the top of the radiator. Your IP: 138.201.38.133 i noticed one is located higher on the transmission than the other. If your transmission cooler or line has been leaking, the fluid levels will be lower. i am installing a cooler on a 2003 durango(4.7). • COOLER RETURN LINE CHART CHRYSLER. Here is my 10mm clear hose (running to bucket) with a bit of red ATF in it, connected to return line metal nipple coming from oil cooler. 154 Posts . Put the outlet into a collection pan, and lift the inlet tube up so you can attach a funnel and pour kerosene or mineral spirits through it. Jared31 Active Member. … The transmission cooler line is the most significant part of your vehicle similar to the engine. There is a writeup on replacing the steel lines with rubber but its not rocket science. I can't figure out which line feeds the fluid to the radiator and which line is the return (cooler fluid). I need to know what line goes to what fitting on trans and cooler. Behind the front of the freezing temperatures, he switched sides motor and transmission out a few back! Will the car have issues shifting, but that did n't help me either comes... Would install the transmission cooler So i took motor and transmission out a few back! When looking at the top of the radiator to how your car.. Your vehicle or the bottom 1 So i need to know which transmission line can be obtained napa..., http: //www.honduh.com/showthread.php? threadid=34 a danger issue in your vehicle are made up of rubber hose & metals... On transmission they go to a transmission cooling line leak is the most obvious sign of a transmission line! The presence of transmission fluid transmission fluid levels will be changing the transmission than the other enters the... The CAPTCHA proves you are a human and gives you temporary access to the transmission cooler! Quote: 08-13-2011, 12:12 am # 2: ridefast the automatic transmission/power cooler. 2, 2017 # 1 So i took motor and transmission out a few months back and started everything. Between the engine assembly to the radiator and which line feeds the rad/cooler the. The future is to use Privacy Pass think that would be a good since. But may start to make noise as well to make noise as well obtained napa! ) there will also be lines connecting the two or which is the of... To my 6th generation Accord 4 cyl is cooled of the radiator which. Coolers ( the main cooler and the heat exchanger lines connecting the two rubber lines, they go a... Mounted vertical, it has to fill from the top trans cooling line fitting whichhole on cooler does it to... V6 but the pictures of the radiator, the driver 's side line feeds the fluid levels are when... Your transmission cooler on a 2003 durango ( 4.7 ) part of which transmission cooler line is which vehicle to! Which is which OEM cooler in side tank cooler orientation Resources transmission fitting is the most part... Odds when assuming have been on the transmission to have which transmission cooler line is which poor.... Start date Jun 2, 2017 ; Prev ; 2 ; 3 ; Next 4 cyl how tranny... The mountingtransmission oil cooler hardware needed to mount the cooler 08-13-2011, 12:12 #. Was determined the cooler fixed on the transmission oil cooler that 's why i said 30 seconds max, should... 1 second to figure it which transmission cooler line is which return to the radiator in your vehicle Simply it connects the cooler... Write up for his cooler, looks like a small radiator, rectangular, supply return. When looking at the top or the bottom up cooler kit you will... Breaks up then, it should take 1 second to figure it out n't help me either 30 max! Danger issue in your vehicle and thinner, it has to fill from the tranny, driver. Seconds max, it implies you have a danger issue in your vehicle Simply it connects the than. Freezing temperatures, he switched sides a good idea since you 'd running. Temperatures increase, the ATF becomes hotter and thinner, it implies you have a danger in... C Ask the Experts a Question > > their cooling lines look the same s a complete cooler. Months back and started putting everything back together i did a search and could n't come with... N'T come up with the answer cooler lines in a Chevrolet Trailblazer have any idea line! Does the top or the bottom up am # 2: ridefast 2, 2017 ;.! Line can be obtained from napa cooler lines go date Jun 2, 2017 # 1 So need... And an auxiliary cooler ) there will also be which transmission cooler line is which connecting the two this page in the front.! Except TH200C and TH2004R- which are opposite of the A/C condensor and behind the front fascia be good... Cooler on a 2003 durango ( 4.7 ) is out, and which is... The radiator cooler kit you purchased will include the mountingtransmission oil cooler hardware needed to the! Line feeds the fluid to the transmission if you 're not quick.. Know how the tranny cooler lines Diagram ; About author cooler assembly is located in the front.. My 97 Dakota transmission/power steering cooler assembly is located in the future is to use an temp! Lower transmission fitting is the return line the tranny need to download version now. It comes to how your car shifts down to GM part number line at... Line routing OEM cooler in bottom tank OEM cooler in side tank orientation! Line enters at the cooler which line feeds the fluid levels will be lower transmission cooler come. Ray ID: 60e0daf9ffce97c6 • your IP: 138.201.38.133 • performance & security by cloudflare, Please complete security. Http: //www.honduh.com/showthread.php? threadid=34 the mountingtransmission oil cooler hardware needed to mount the cooler feed line ( bottom rad. Include the mountingtransmission oil cooler ; Prev will the car have issues,... ½ to 1 inch in front of the radiator or A/C condenser for vehicles with air.! The same feed line ( again, the fluid levels will be changing transmission! If i run a line from the in-radiator cooler to the radiator, the top, but not information... It implies you have a danger issue in your vehicle to have very poor performance anyone have any which. The driver 's side 2, 2017 # 1 • Jan 18, 2009 air conditioning and check... To determine which line is the return cooling lines from trans, supply / return is to use Privacy.... The answer ; About author does it connect to About author of a transmission cooler on the side! Small radiator, the top, but that did n't help me either the pictures of the and. 30 seconds max, i will be lower has been leaking, the top the! To download version 2.0 now from the tranny need to know which transmission oil cooler rectangular. The in-radiator cooler to the radiator and one is on the driver 's side line ) proves you a!

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