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I need to know which transmission cooling line goes where

I have 2 lines side by side and need to know which way they go onto the radiator

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  • Cars & Trucks Master
  • 1,007 Answers

If you removed an old radiator and pipes, then fit according to those.

If the old rad and pipes are missing, then first fit the radiator to the vehicle, and then offer up each pipe to the vehicle and see which route is best suited to each pipe, depending on the length and angle of it.

Posted on Nov 04, 2012


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Posted on Jan 02, 2017

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SOURCE: cooling line fitting at transmissssion broke

Use the fitting as a sample, have someone at a garage, or parts place, flare a piece of tubing to it as long as you need to attach rubber line, or did you want to put back like original?

Posted on Jan 06, 2009

  • 9 Answers

SOURCE: Transmission cooling lines leakage

first check to see if they are loose then check to see if you have a hole in your lines if they are loose then just thighten them up not really tight just snug them up if you have a hole in your line you can replace it with a new one you can find them at any auto parts store also make sure not to cross thread the lines when you put them back on if you replace them or take them off

Posted on Jan 06, 2009

  • 196 Answers

SOURCE: 1988 ford taurus transmission lines leak at radiator

Well they should be a flared line and not leak make sure they are good and tight if they are try using some plumbers tape on the threads.

Posted on Jan 11, 2009

  • 6982 Answers

SOURCE: automatic transmission - radiator line leak

The cooling system is pretty much self explanatory hoses go from and to the most obvious places...(you wouldn't try to stretch the lower hose all the way across to the upper hose connection). The trans cooler in the radiator can actually be connected either way. It is non-directional, being a simple coil inside the radiator tank. If you want to install an external trans cooler, that's a bit needs to go on the outflow side of the radiator so it can further cool what the radiator has already cooled down. An easy way to find out which side is the return line, simply take one fitting off the radiator, remove the coil wire so engine dosen't start and "bump" the engine over till trans fluid comes out. if out of radiator nipple you are on the correct side, out of hose, install on other side. Leaking lines can be partially replaced using brass compression fittings made for this. Only use them on straight clean runs, not on heavy rust or bends.

Posted on Mar 13, 2009

  • 8197 Answers

SOURCE: 1999 chrysler 300M, Want to replace the radiator

The 2 metal lines are for the transmission. They take trans fluid from trans to trans cooler.

Posted on Nov 10, 2009

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Why is there engine oil in cooling system?

Check your transmission oil the trany cooler is located in the radiator itself so the transmission oil is mix with prestone 2 solution change the radiator or cheaper solution bye a transmission cooler that you gonna intall in front of the radiator remove the trany cooling line that goes to the radiator and intall them on the trany cooler you just bought it come with rubber line clamp everything you need to do the job

Mar 15, 2015 | Cars & Trucks

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It doesn't matter. But usually the left side of the cooler lines go with the left side of the radiator. Cooler lines run both ways, unless you deal with Dodge, stupid check valves. I take them out....

Apr 29, 2014 | 2002 Mitsubishi Lancer

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What is a transcoolent line?

A Transmission Coolant Line is 2 Lines running from your Transmission to the Radiator 1 line is where transmission fluid goes into the radiator and the #2 line is where it returns to the Transmission, A Automatic transmissions Fluid can Run 400 Degrees or More,The Lines are to Help keep the temperture of the Fluid in your Transmission at a temperture that does'nt exceed the specifications of your transmission operating temperture. Prevent Over Heating and that would result in a Excessive Tep that would cause damage to the Internal Componets and your Front and Rear Seals. NOTE: Some Vehicles Trucks that Tow a Heavy Trailer or something else have a ADD on or some come from the factory with a Truck or SUIV that has a TOW Package on it, if this has this option the Transmission Lines will not go through the Transmission they will go to the Optional Transmission cooler ,thats normally located in front of your Radiator for much better cooling ,it actually works like a Radiator it has Fins and tubes with a Inlet tube and a Outlet tube. This is a Much more effficent cooling Component for your Transmission. Hope i have answered your question. And given you the Help you needed. Thank You.

Feb 22, 2012 | 1998 Dodge Ram 1500 4WD

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What is copper line coming out of radiator

???Is it a metal line on driver's side of radiator? That would be a transmission cooler line. There should be two, one up high, and one down lower, near bottom of radiator. The radiator has a separate reservoir for the transmission fluid to circulate and be cooled.
If it's anything else, I don't know.

Nov 25, 2011 | Cars & Trucks

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We need to know if the radiator has an enigine oil cooler in it so we know which one to buy

if you get under the car on the driver side were the oil filter is and look were the filter screw onto the motor,if you see 2 large lines coming from the plate that the filter screws onto going to the front of the motor and attach to the lower rad then you have an engine oil cooler in the radiator.there will be lines that come from the transmission to the radiator that are considerably smaller.

Sep 16, 2011 | 1994 GMC Safari

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Creamy sludge found in radiator. When open the radiator expansion cap, creamy sludge found. Just do the top overhaul at workshop nearby. What may cause the problem? Thanks

Transmission fluid goes through the radiator to cool. The line could be leaking into the radiator as it goes through. Usually at the near the bottom is where the line goes in and comes out the other side.

Jun 20, 2011 | Mercedes-Benz E-Class Cars & Trucks

1 Answer

Removal and replace radiator on 1990 ford taurus V6 3.8L w/AC

  • Remove the pressure cap. Place it aside for the new radiator.

  • Drain the coolant into a drain pan. The drain valve is located at the bottom of the radiator. Twist it counterclockwise until the fluid starts to drain. Close the valve when the coolant stops draining.

  • Locate the transmission lines at the bottom of the radiator. Ensure you mark both of the lines so you will know which one goes where. Unscrew these with a line wrench. Plug the line with a towel to prevent the transmission fluid from leaking out.

  • Unscrew the radiator hoses at the top and bottom of the radiator. The hoses are held on by hose clamps that can be loosened with a flat head screwdriver. Slide the hoses off the radiator with your fingers after the hose clamp is loosened.

  • Pry the overflow hose off with your fingers. The hose slides over a tube at the neck of the radiator.

  • Unscrew the mounting bolts at the base of the radiator. There will be one bolt on each side which can be unbolted with a socket wrench.

  • Unsnap any sensors connected to the radiator. They will have quick connect fittings that can be undone by separating the tabs and pulling apart.

  • Unscrew the fan shroud with a socket wrench. The fan shroud will slide off the top of the radiator. You can also remove the cooling fan as it is held onto the fan clutch by four small bolts. You will need a socket wrench to remove.

  • Lift the radiator out from the hood. You may need assistance as the radiator can be heavy and awkward to lift.

  • Oct 08, 2010 | 1990 Ford Taurus

    2 Answers

    How to remove radiator from my 2000 chrysler 300

    Radiator Removal & Installation To Remove:
    1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
    2. Disconnect negative cable.
    3. Drain cooling system.
    4. Remove or disconnect the following:
      • Radiator upper crossmember
      • Upper and lower coolant hoses from the radiator
      • Transmission hoses from cooler
      • Engine oil cooler lines (if equipped)
      • Radiator fan electrical connector and fan assembly
      • Condenser mounting screws located at the front of the radiator
      • Transmission cooler line bracket from left side of radiator
    5. Lift condenser upward enough to disengage upper mounting clips. Allow condenser to rest on lower radiator crossmember.
    6. Lifted radiator from engine compartment.
    To Install:
    1. Seat the radiator assembly lower rubber isolators into the mounting holes in radiator lower support.
    2. Attach air conditioning condenser to radiator
      • Torque to 45 inch lbs. (5 Nm)
    3. Install or connect the following:
      • Radiator lower hose
      • Transmission cooler line bracket and transmission hoses
        1. Torque to 28 inch lbs. (3 Nm)
      • Radiator fan and electrical connector
      • Engine oil cooler lines (if equipped)
        1. Torque to 160 inch lbs. (18 Nm)
      • Radiator upper hose
      • Radiator upper support crossmember
      • Negative cable
    4. Fill cooling system with coolant.
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    Aug 03, 2010 | 1999 Chrysler 300M

    1 Answer

    My transmission line that connects to the radiator

    The easiest fix is to get a transmission fluid cooler & use it to replace the fan connection completely. Basically you'll just shorten your lines a bit to clamp a hose over them & connect both lines to the 2 lines on the cooler. the cooler installs onto the front of the radiator with push through connectors that makes it easy to install & it will provide you even better trans. cooling in the warm months.

    I have seen people use just a hose to connect the 2 lines & not have any problem in the cooler months but you really do need the trans fluid cooled during the warmer months to prevent trans damage.

    check you fluid & top it off properly after making the repair!

    Good Luck

    Jan 27, 2010 | 1996 Chevrolet Cavalier

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