Doing a repair twice involves more time and expense than doing it once, and is generally avoided. In the transmission temperature chart below, you can see how long your transmission will live at various temperatures. Also, attach the pan bolts and gaskets to secure the new transmission cooler lines. Windshield Wiper Motor Replacement Cost Guide, Transmission Solenoid Replacement Cost Guide. I assume these are the rusted lines of which they are speaking. 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 only way to fix a bad transmission cooler or line is to replace it. 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. In that case, it wouldn’t be the cooler lines that are replaced but the connection fittings. If you have an external transmission cooler that needs to be replaced, this is less labor intensive and much cheaper than replacing the whole radiator. Metal transmission cooler lines are typically pre-bent with fittings that are held on by a flare at each end of the line. 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. Many newer vehicles, however, use non-replaceable clamps, which means replacing the entire line and hose assembly. When a line leaks, there will be transmission fluid on the ground near where the leak is coming from. When in good condition, transmission fluid is a very bright red, so it is very easy to notice on most surfaces. 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. 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. The two transmission cooler lines or hoses are almost always replaced together. There is no specified replacement interval for transmission cooler replacement lines. Remove the nut securing the cooler line bracket to the transmission. If you look between the radiator and the transmission, you will see two rubber hoses coming from the radiator connected to metal lines. Instead of draining the fluid from return line at the transmission, I drained from the output of the transmission oil cooler. More likely, the transmission cooler itself may fail, and the lines will be recommended as part of the repair. In most cities, there are places equipped to make or rebuild hydraulic lines, which would be able to replace the leaking rubber lines and remake a factory-style crimp. 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 … This makes the job about $320. It depends on the size of the leak. The main problem is leaks. 2. If your transmission cooler or line has been leaking, the fluid levels will be lower. Install the New Transmission Cooler Lines. Transmission cooler lines leaking at the radiator puts car owners in a distressing situation. Pull the bracket/lines out of the transmission and have a catch-pan ready as some fluid to come out. Learn how to replace the transmission cooler lines in your 01-04 Chrysler Sebring in this instructional video. There will be two lines connected to the cooler, an input and an output. 1. Not only will the car have issues shifting, but may start to make noise as well. Next, take out your new transmission cooler lines and place them carefully without bending or kinking. The only way to fix a bad transmission cooler or line is to replace it. 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. 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. In some cases, the transmission cooler is inside the radiator, or it can be a small radiator mounted in front of the engine radiator. This can be one of the most noticeable clogged transmission cooler symptoms. 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. The engine has the primary cooling system, with a pump circulating coolant through a large radiator. (5) Remove the bolts attaching the transmission 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. If the flexible hoses have a replaceable clamp to the fixed lines, then replacement is usually just the flexible hoses. If the transmission cooler lines are leaking, the leak will originate at the cooler, a connector, or a soft line. Terrain and it appears to be a push-in type of fitting? The hoses traveling from the transmission to the radiator are called transmission cooler lines. If this is the case, it is highly recommended to perform a full coolant flush to … Depending on where you live, steel transmission lines may rust out over time causing leaks, and … In some cases there are two transmission coolers; one inside the radiator as well as one mounted outside. 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. There is also an available factory auxiliary cooler which can be installed as a kit, costing about $500 in total parts and labor. 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. Once your transmission temperatures start to exceed 225, you will start to greatly reduce its lifespan. Without a cooler, the transmission runs hotter and can suffer more wear and early failure. The transmission has its own cooling system, which uses transmission fluid pumped through a smaller radiator, typically sitting in front of the engine radiator. 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 below chart shows the colors transmission fluid will be based on how good it is. The below transmission cooler installation diagram shows the transmission fluid flow direction and how the fluid will be routed through a new external cooler. Jump to Latest Follow 1 - 1 of 1 Posts. 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. Get the best pricing on the highest quality transmission lines! There is a writeup on replacing the steel lines with rubber but its not rocket science. The most obvious symptom of extreme transmission temperatures is the smell of something burning. Pic #1 shows the Connector with the grey plastic ring in the locked position and Pic #2 shows the plastic ring pulled out. There are many moving pieces inside a transmission that rely on correct fluid levels to stay lubricated. For some more specific examples on common vehicles, using $100 an hour as a labor rate: For a 2013 Jeep Wrangler, the labor time to replace the transmission oil cooler line assembly is 1.2 hours. It doesn't matter which one you disconnect first. If there is no auxiliary cooler, then the job is basically half the cost in parts and labor, or about $125. The transmission cooler kit you purchased will include the mountingtransmission oil cooler hardware needed to mount the cooler. The fluid flows from the transmission oil pan through rubber or metal lines to the transmission oil cooler, which is essentially like a radiator. 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. One option to replacing lines is having the lines rebuilt. This most likely is from the transmission itself. 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