Why do transmission cooler lines leak?

Ella Mosciski asked a question: Why do transmission cooler lines leak?
Asked By: Ella Mosciski
Date created: Tue, Feb 23, 2021 6:23 AM


Top best answers to the question «Why do transmission cooler lines leak»

Transmission cooling lines leaking means either low-level of fluid or interrupted flow in the transmission. In both cases, the result is an overheated transmission that may stop functioning if the condition persists. Sometimes, it is difficult to spot the leak at the initial stage.


Those who are looking for an answer to the question «Why do transmission cooler lines leak?» often ask the following questions:

❗ What causes transmission cooler lines to leak?

  • The most common transmission cooler failures are due to either a leak in the body of the cooler itself, or a clogged line caused by something flowing through the system. This most likely is from the transmission itself. If left unattended, the transmission will run low on atf which will increase the fluid temperature and cause premature failure.

❗ What causes oil cooler lines to leak?

Most of the time, a bad oil cooler line will leak oil from one of its connections. The seals can deteriorate and cause a leak. The cooler lines can become corroded over time, or they can crack. A low oil condition can result from a leak and trigger a warning light on the dash.

❗ Can you repair transmission cooler lines?

Like all parts of an engine, transmission cooling lines can wear out. If they break or develop a leak, you will lose transmission fluid, leaving your car vulnerable. Thankfully this is a fairly simple fix, and most transmission line repairs cost between $100 and $500 dollars.

Your Answer

We've handpicked 25 related questions for you, similar to «Why do transmission cooler lines leak?» so you can surely find the answer!

When should transmission cooler lines be replaced?

Once it starts releasing a lot of liquid, exudes burnt smell and approaches complete malfunction, it will have already brought substantial damage to the transmission. Thus, once you notice minor issues with the cooler lines, it is best to replace them right away.

Read more

How big are the transmission fluid cooler lines?

  • "Transmission fluid cooler lines: on the 700R4 the bottom fitting on the right side of the transmission is the "out" line to the cooler and the top fitting is for the return line from the cooler. These fittings are 1/4-inch pipe thread, and CAN include an adapter from the factory for threaded steel lines in an SAE size."

Read more

How do transmission cooler lines connect to radiator?

The hoses traveling from the transmission to the radiator are called transmission cooler lines. They channel hot transmission fluid to the radiator, where it is cooled, then return it back to the transmission. They typically resemble brake lines and are made of metal.

Read more

How much pressure is on transmission cooler lines?

the pressure in these lines can reach the high side of 200 psi during extreme use (such as high-rpm racing). Also, the tech sheets for coolers from B&M and others say they are pressure tested to 200 psi.

Read more

How replace 2000 jimmy 4x4 transmission cooler lines?

The transmission lines on a 2000 GMC Jimmy 4x4 are replaced by disconnecting the lines at the radiator and then the side of the transmission. They are then removed from the bottom of the vehicle and new lines put in place.

Read more

How tall are the automatic transmission cooler lines?

  • Automatic Transmission Cooler Lines, 7 Ft. Length, Flexible, Braided Stainless Steel, PTFE, 4L60, 700R4, TH350, TH400, Pair Automatic Transmission Cooler Lines, 5 Foot Length, Flexible, Braided Stainless Steel, PTFE, 4L60, 700R4, TH350, TH400, Pair

Read more

What can i use for transmission cooler lines?

Rubber transmission lines are readily available and are the cheapest option for transmission cooler lines. More often than not, your vehicle will have some rubber lines from the factory, but not nearly as much as it would metal.

Read more

What should i do about a transmission cooler leak?

  • Click to expand... Be aware that the Transmission Cooler and A/C Condenser are integrated, the OEM part (4677782AC) has an MSRP of $312…I'm wondering if the culprit is the male portion of the connector on the hose, or the female portion of the connector in the oil cooler...

Read more

Can i use compression fittings on transmission cooler lines?

P.S. Compression fittings on trans cooler lines should be fine, but then, adding a bit of hose and clamps would also work well, and be easier.

Read more

Can you use rubber hose for transmission cooler lines?

You can use rubber hose, but make sure it's transmission cooler line rated. The pressure is quite low (12-15 psi). Double clamp it or use FI type clamps instead of the worm-drive style.

Read more

Do you use teflon tape on transmission cooler lines?

The tape should be fine just make sure to wrap it the right way (threads facing you wrap clockwise, just like screwing a nut on a bolt). Don't put either on the ball and socket joint where the cooler line attaches, but from the pic it looks like you didn't.

Read more

Where are the transmission cooler lines for a neon?

The transmission cooler lines are located coming from the radiator on the bottom. One is for the sending and the other for return. The lines are high pressure, just as your radiator hoses are when the car is running. The lines go from the radiator to the top of the transmission.

Read more

How long does it take to replace transmission cooler lines?

Repairing the cooling line for your transmission can take quite a bit of time. You can expect to leave your vehicle at the repair shop for a day or two for this repair.

Read more

How much does it cost to replace transmission cooler lines?

You will pay somewhere between $100 and $450 for a transmission cooler line replacement. The labor should be between $60 and $300, while parts can cost you anywhere from $40-$160.

Read more

Where are the transmission cooler lines on a chevy truck?

  • On a Chevrolet truck or car running a V6 or V8 engine, a set of transmission cooler lines typically runs from the front of the vehicle by the radiator into the transmission. This small radiator helps to cool the transmission fluid in the same way the radiator drops the temperature of coolant for the engine.

Read more

Does it matter how the transmission lines are hooked up on a transmission cooler?

Oh yes.

Read more

Swamp cooler leak?

the best thing for a swamp cooler leak, is a copper pipe, or plumbing sealant, its similar to jb weld, only its waterproof, and made for leaks.

Read more

How do you change transmission cooler lines in a 2002 escort?

I would buy a set of flare nut wrenches. They have an open side to fit over the line so that you can get on the flare nut going into the transmission and radiator. Get a pan to catch the tranny fluid that is going to run out when you break the lines. There are 2 lines going into the tranny and 2 lines going into the radiator. Before you take the lines loose identify their position on the radiator and tranny with masking tape.

Read more

Is there a difference between 1969-1972 dodge transmission cooler lines?

Cooler lines should fit.Check and see if you have a 904 or 727 transmission. It should work fine, Good luck.

Read more

What are the size and threading of the transmission cooler lines?

  • So, in the end, what size and threading are the transmission cooler line fittings at the transmission. Also, if I pull the "adapter" off the case, can I get more flow out of the cooler? If so, what size and threading are the threads in the case of the side of the transmission.

Read more

What should you do if your transmission cooler lines are leaking?

  • Transmission cooler lines leaking at the radiator puts car owners in a distressing situation. So, as soon as the transmission cooler lines at the radiator of your car are starting to leak, you should immediately take necessary steps to prevent a further issue from arising.

Read more

Where are the transmission cooler lines located in a 2005 corolla?

  • Had my 2005 Corolla LE in for a free oil change at the stealership, and they indicated the transmission cooler lines are rusted / rotted. They recommended new cooler lines. Where are these transmission cooler lines located?

Read more

If your transmission cooler lines are backwards will that effect trans performance?

it will not affect your trans performance but it depends on what type of car you have a ford will blow up a Holden will stand stron

Read more

Where are the transmission cooler lines located on a 2003 acura tl?

The 1999 - 2006 acura tl's don't have a transmission oil cooler. no cooler lines to the standard radiator either. Phil

Read more

How do you remove the transmission cooler lines from the transmission on a 1992 jeep cherokee loredo?

The bottom fitting is a quick connect fitting. You usually use a special tool to release this fitting. Some auto parts stores will lend you the necessary tool for free. The top line will be a flare fitting, which will require the proper sized end wrench or line wrench to remove.

Read more