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Oil Cooler Hose Guides

Getting a Replacement Oil Cooler Hose

Oil leaks can ruin anyone's day. The tell-tale pool of fluid underneath your car means that you most likely have a damaged hose. Replacing these lines should be the first order of the day, that's why you're reading this in the first place right? Here's what you need to consider when buying new oil cooler hoses.

Types of oil cooler lines

Transmission oil cooler lines -These are laid out along the passenger side of most vehicles and are about five to six inches in length. The fluid they contain is red, a useful indicator in case a leak happens. Automatic transmission fluids usually operate at about 175 degrees Fahrenheit but the oil hoses themselves usually work at temperatures reaching up to 300 degrees Fahrenheit. These line also work under great pressure, measuring 75 to 150 psi and a lot more on occasion.

Engine oil cooler lines - These are placed along the driver's side of the car and contain black or brown fluid. They are about four to five inches in length.

Oil cooler hose fit

Your car's engine is packed with moving parts and other components so you'll be hard pressed to find the right hose that could fit perfectly in the engine. It's not just a question of size but also of length and angle. The best hoses are as long they are required to be and not an inch more unless you want them to snake around your engine. If they do snake around the engine, they will most likely be prone to damage and blockage which could cause your engine to fail.

Oil hose diameter

You should also consider the diameter of the oil hoses. Getting a hose with the wrong diameter might prevent you from attaching them. If the hose's diameter is too small, the pressure exerted by the oil might be too great and rupture the hose, and if it is too large, the pressure might not be great enough to deliver the oil where it is needed.

Reminder: The best oil cooler hoses are built to original equipment manufacturer (OEM) specifications and are usually identified by make, model, year, and engine size. Be sure to take note of this when you're looking for the right oil cooler hose. If you're old oil hose has an identification number on it, then your job just got a little easier. Be sure to double check the numbers in your old and new hose matchup so no problems come up during installation.

Replacing your Car's Busted Oil Cooler Hose

Overheating is the worst symptom of a busted oil cooler hose. When this problem occurs, your system has become too hot that it cannot operate smoothly anymore. If left unchecked, this can result to damaged components in your assembly. One of the causes of overheating is a leaking oil cooler hose. You see, if this component is broken, your car won't be able to transport hot oil through a cooling system and if the temperature of your system's oil isn't lowered, the oil can cause damage to your transmission. So, before the problem gets out of hand, address the glitch of your oil cooler hose immediately. Below are a few basic steps that you can follow to get started with your car repairs.

Difficulty Level: Moderate

What you'll need:

  • Jack and jack stands
  • Collection pan
  • Metric wrench set
  • Metric socket set
  • Flare nut wrench
  • Funnel
  • Rags
  • Transmission fluid
  • Replacement oil cooler hose

Step 1: Before you start, make sure you are parked on a flat surface and your engine is cooled down. It will usually take around 30 minutes before your engine becomes cools completely.

Step 2: Once the engine has cooled down, raise and support the front part of your car using a jack and jack stands. Raise it until you have enough working space below your car.

Step 3: Go underneath your vehicle and find the transmission drain pan?a large metal tank at the center of your engine. Once you've located it, get your collection pan and place it right beneath the drain pan.

Step 4: Using a socket wrench that fits, remove the bolt at the center of the transmission drain pan. After removing the bolt, fluid will flow out of your transmission. Allow it to drain into your collection pan for about 10 to 15 minutes. After draining, install a new bolt or reattach your old one.

Step 5: Look for your oil cooler hose by locating it from your transmission to the bottom end of your radiator. To uninstall your faulty hose, use the flare nut wrench to remove its connecting nuts. Once you've loosened all the nuts, pull the hose out from its attachment.

Step 6: Before you install a new hose, clean the attachment point using a rag. After that, install the new hose by attaching it and securing its connection with its mounting hardware. Tighten the bolts using your socket wrench. Make sure you weave it through the engine parts and line it up just like your old one.

Step 7: Lower your car from the jack stands and open your hood. Pull out your transmission dipstick and replace it with a funnel. Pour the amount of transmission fluid that your system needs. The amount of fluid will vary for every vehicle, so check yours in the owner manual before putting some in your system.

Step 8: Check your newly attached lines for any leaks before you take your car out for a spin.

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