step 1 : Removing the Air Intake Box Jump to 0:29 Loosen the air intake hose clamp with a flat blade screwdriver The transmission has its own cooling system, which uses transmission fluid pumped through a smaller radiator, typically sitting in front of the engine radiator. But how hard the assemblies are to replace depends on their routing through the tightly organized engine bay, which is the primary challenge. The only tool you's need is a 10mm socket wrench, and a … Yes, it can be done. Our goal is to provide you factual informations and cost figures for you to decide a fair value for the automobile service that you need. Some lines are more expensive than others, and sometimes there is a lot of fluid to be cleaned up, but this typically isn’t a … (5) Remove the bolts attaching the transmission 2. Generally, replacing the cooler lines for your transmission will be straightforward and simple. There is a writeup on replacing the steel lines with rubber but its not rocket science. Discharge the nut that associates the transmission line. Install the New Transmission Cooler Lines. That becomes your fitting the rubber line goes on. 1/2" transmission line can be obtained from napa. It doesn't matter which one you disconnect first. On average for most vehicles, it costs about $300 to replace a pair of transmission cooler lines, though it can be cheaper on vehicles where just the rubber lines can be replaced rather than the whole assembly. You will require a wrench to do this. They typically resemble brake lines and are made of metal. When I looked at the transmission cooler, it was marked with a pink and blue mark on the inlet and outlet tubes, so it looks like the transmission has been serviced before. Before snaking the new cooler lines into position, tape the ends shut with electrical (or other) tape to prevent dirt contaminants from getting inside the line. You'll get a rough estimate for your vehicle and we'll get your car repaired urgently. Also, attach the pan bolts and gaskets to secure the new transmission cooler lines. There is no specified replacement interval for transmission cooler replacement lines. Hi all,I was wondering if anyone has replaced their transmission cooler lines and how to release the radiator side. It can depend on how a vehicle is used, but heat is one of the main things that break down transmission fluid. 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 took it to the dealer and they wanted 236.00 to replace them both, but only one seeps a very little amount. Jump to Latest Follow 1 - 1 of 1 Posts. When in good condition, transmission fluid is a very bright red, so it is very easy to notice on most surfaces. In most applications where the external trans cooler is used in addition to the factory one, you will need to route the new transmission lines from the radiator to the external cooler. 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. If the transmission cooler lines are leaking, the leak will originate at the cooler, a connector, or a soft line. Without a cooler, the transmission runs hotter and can suffer more wear and early failure. The below chart shows the colors transmission fluid will be based on how good it is. (4) Unsnap the transmission cooler tubes from the radiator tank clips. Notify me of follow-up comments by email. If the flexible hoses have a replaceable clamp to the fixed lines, then replacement is usually just the flexible hoses. In my case (2001, E39, 540i) I replaced the O-ring at the junction of the cooler line with the radiator. Lift the front of the vehicle with a floor jack, then support the weight of the vehicle with two jack … Learn how to replace the transmission cooler lines in your 01-04 Chrysler Sebring in this instructional video. Just like a radiator, the cooler has tubes that absorb heat from the fluid, and fins that dissipate the heat into the air. I have a 2010 4 cyl. Lack of fluid will create more noise as things are moving around. Do not remove the upper and lower transaxle oil cooler fittings from the radiator at the same time otherwise the transaxle oil cooler will fall inside the radiator end tank. Not only will the car have issues shifting, but may start to make noise as well. There is no specified replacement interval for transmission cooler replacement lines. In the transmission temperature chart below, you can see how long your transmission will live at various temperatures. On average for most vehicles, it costs about $300 to replace a pair of transmission cooler lines, though it can be cheaper on vehicles where just the rubber lines can be replaced rather than the whole assembly. If left unattended, the transmission will run low on atf which will increase the fluid temperature and cause premature failure. Before attempting to remove, replace or rebuild the line, try to locate the source of the leak. This makes the job about $320. Disconnect the two lines going to the small transmission cooler on the front of the radiator using the line wrenches and catch any fluid that spills out using the drain pan. The most obvious symptom of extreme transmission temperatures is the smell of something burning. There will be two lines connected to the cooler, an input and an output. The engine has the primary cooling system, with a pump circulating coolant through a large radiator. On newer vehicles with non-replaceable hoses, cooler lines will usually leak at the crimp where the rubber line is clamped over the metal line. Once your transmission temperatures start to exceed 225, you will start to greatly reduce its lifespan. When a line leaks, there will be transmission fluid on the ground near where the leak is coming from. Depending on where you live, steel transmission lines may rust out over time causing leaks, and … The cooler should be mounted ½ to 1 inch in front of the radiator or A/C condenser for vehicles with air conditioning. Costs of Transmission Cooler Line Replacement. A “seep” is most common, where you can see wetness but no drips. In some cases, the transmission cooler is inside the radiator, or it can be a small radiator mounted in front of the engine radiator. The four hoses involved cost about $100 through dealer sources, making the job about $250 to replace the hoses. If this is the case, it is highly recommended to perform a full coolant flush to … 3. On vehicles with replaceable hoses, they usually leak first at the clamp, where a rubber hose that has become old and hard will no longer hold a seal. Pull the bracket/lines out of the transmission and have a catch-pan ready as some fluid to come out. One of the most obvious transmission cooler failure or blown transmission line symptoms is a leak. If there is no auxiliary cooler, then the job is basically half the cost in parts and labor, or about $125. One option to replacing lines is having the lines rebuilt. 8 Attach the new cooler lines to the radiator and the transmission as well as any hangers that they may have been suspended from. Re: Transmission Oil Cooler Line HOW TO: Replace the transmission oil cooler line Things you will need: 3/8" quick connect tool OR; a tool capable of extracting the quick connect retainer (I used a small Allen wrench with the short end sharpened to a point). A great deal of heat is generated in this process. But what if it fails? This most likely is from the transmission itself. Next, take out your new transmission cooler lines and place them carefully without bending or kinking. More likely, the transmission cooler itself may fail, and the lines will be recommended as part of the repair. The lines could also be sent out and rebuilt, but at about the cost of replacing with new most of the time. Windshield Wiper Motor Replacement Cost Guide, Transmission Solenoid Replacement Cost Guide. Depending on the transmission cooling system routing, it is not too uncommon to have the transmission cooler lines leaking at the radiator if the lines are starting to rust. (3) Disconnect the transmission oil cooler line quick-connect fitting at the cooler outlet using the quick connect release tool 6935. Chevrolet / GM transmission cooler line fittings leaking solved! Terrain and it appears to be a push-in type of fitting? Transmission cooler lines leaking at the radiator puts car owners in a distressing situation. Fixing a bad transmission cooler will not only save you a headache, but potentially thousands of dollars that are needed to replace your failed transmission. Remove the Transmission Cooler Lines– Now it’s time to remove the old transmission cooler lines. More likely, the transmission cooler itself may fail, and the lines will be recommended as part of the repair. Remove the nut securing the cooler line bracket to the transmission. These are small screw-in parts that carry the seals that bear against the cooler pipes, and which are pretty simple and cheap to replace in most cases. The hoses, in this case, are separable from the pipes, and factory pre-shaped hoses cost about $30. Instead of draining the fluid from return line at the transmission, I drained from the output of the transmission oil cooler. The cost is usually about the same as for new lines, so this is more of a last resort if new lines are unavailable for some reason. This can be one of the most noticeable clogged transmission cooler symptoms. Then, use the wrench to tighten them rightly. Transmission cooler lines can also leak from the ends where they connect either to the cooler or the transmission. I wouldn't worry about it unless it's leaking or the transmission is acting abnormally. It might take some power to do pull and evacuate the old line. The two transmission cooler lines or hoses are almost always replaced together. If this is the case, it is highly recommended to perform a full coolant flush to ensure no ATF got into the cars cooling system. Many newer vehicles, however, use non-replaceable clamps, which means replacing the entire line and hose assembly. Find the oil cooler lines. Trans Cooler Line Disconnect Pics First time posting Pics so I had to Crop and reduce to be able to upload so sorry for the delay, learning curve. They channel hot transmission fluid to the radiator, where it is cooled, then return it back to the transmission. For a 2011 Nissan Xterra with a 4.0 liter engine and factory-installed standard and auxiliary transmission coolers, the labor time to replace the hoses is 1.4 hours. Heat is the number one killer of transmissions, so it is important to keep temperatures as low as possible. 2. If there are two transmission coolers (the main cooler and an auxiliary cooler) there will also be lines connecting the two. However, high mileage vehicles may experience failure of these lines as their rubber parts will degrade over time due to age and heat from driving. The below transmission cooler installation diagram shows the transmission fluid flow direction and how the fluid will be routed through a new external cooler. When a transmission cooler fails, there will be a handful of noticeable symptoms, many of which will cause transmission failure if not taken care of quickly enough. This is the most noticeable signs of low transmission fluid Transmission fluid levels are critical when it comes to how your car shifts. Some other vehicles that don’t use pre-formed hoses (mostly older vehicles) can be much cheaper for parts, where the appropriate hose is sold by the foot as necessary at auto parts stores. Some types of clamps can be tightened, but if the hose has begun to degrade then replacement is the best long-term choice. In a conventional motor vehicle, the engine produces power, which runs through the gears and bearings or the transmission, and then drives the wheels. The fittings going into the tranny need to be saved. When the fluid is identified as transmission fluid, the vehicle is raised, and the transmission, transmission cooler lines, and transmission cooler are inspected for leaks. The line is usually made of steel, ranging in width from 5/16-inch to 3/8-inch with a flare nut on the end. 1. It depends on the size of the leak. This will cause your transmission to have very poor performance. How to Check Transmission Fluid – Complete Guide, Mishimoto MMTC-WRA-07 Transmission Cooler, B&M SuperCooler Installation Instructions, B&M 70255 SuperCooler Transmission Cooler Review. The fluid flows from the transmission oil pan through rubber or metal lines to the transmission oil cooler, which is essentially like a radiator. Metal transmission cooler lines are typically pre-bent with fittings that are held on by a flare at each end of the line. Since the cooler’s job is to flow trans fluid to lower temps, if there is a clog in the cooler, the fluid may not be able to flow properly, which would result in overheating the fluid. Since the factory transmission cooler is typically found within the radiator, this means the whole radiator will have to be replaced as well. The only way to fix a bad transmission cooler or line is to replace it. In some cases there are two transmission coolers; one inside the radiator as well as one mounted outside. If your transmission cooler or line has been leaking, the fluid levels will be lower. Daniel has worked for 33 years now in the automotive field, as an ASE Master Technician for independent shops and dealerships, as a Certified Chrysler Technician, as a warranty claims adjuster for General Motors. There is also an available factory auxiliary cooler which can be installed as a kit, costing about $500 in total parts and labor. The only way to fix a bad transmission cooler or line is to replace it. Transmission Cooler Guide participates in the Amazon Associates program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. The most obvious sign of a transmission cooling line leak is the presence of transmission fluid. 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