Today we will try to help you resolve a issue that can be frustrating, and if not handled in time become a financial drain. Surely, finding a leak on your vehicle is never reassuring, and it is even less calming when it’s a gearbox leak on your GMC Yukon . In this article, we’re going to help you ensure that it’s in actual fact a gearbox leak, then, how to repair a gearbox or transmission leak, then, give you some prevention tips, and, finally, give you an idea of the price of the gearbox of a GMC Yukon.


Gearbox leak on GMC Yukon, source and manifestation

If you have detected an oil stain on the ground, you will need to confirm that this leak is in actual fact originating from the gearbox of your GMC Yukon. To get this done, you will need to go under your vehicle and follow the oil leak. If it is transmission oil, it must be originating from your gearbox sump or an adjacent room. Once validated, here are the possible sources of this transmission leak:

  • A gearbox cap: If it’s wrongly screwed on…
  • Defective torque converter: Only equipped on automatic gearboxes.
  • From the transmission oil sump: In the event it is cracked or broken
  • One of your seals broken

How to fix a gearbox leak on GMC Yukon?

After discovering the different sources of a gearbox or transmission oil leak on your GMC Yukon, we will try to show you to you what are your options to repair this oil leak. Remember that whatever the case, after having founded a leak, you must go to a mechanic to identify the exact source of the leak, in any other case your gearbox might be irreparably broken. However, here is how the service of the mechanic and the solutions that will be offered to you:

  • Very often to identify the leak, the auto technician will have to take apart your gearbox, which will require a high labour cost.
  • If you’re lucky and it’s just a gasket, your auto technician will change it and reassemble the gearbox of your GMC Yukon, in any other case you’ll have to replace the whole gearbox
  • .

  • At last, for the do-it-yourselfers, it is possible to use a sealing kit which is only effective in the case of small leaks, this kit is worth around 40 euros


Prevention: How to avoid gearbox leaks on your GMC Yukon?

There aren’t many alternatives to avoid gearbox leaks on your GMC Yukon , however here are the three most effective:

  • Regular oil changes on your gearbox deck.
  • Drain your gearbox and put new oil in it. If you want to know everything about this action, please go through our content on this subject matter.
  • Use a particular additive for routine service of gearbox seals, these additives will restore flexibility and enable to plug slight leaks, you will discover some for a few dozen euros at Oscaro.


Price of a GMC Yukon gearbox

At last, we would like to give you an idea of how much it costs to replace the gearbox of a GMC Yukon. As you have understood, gearbox problems often lead to a whole replace of this part. It is hard to give you a precise price because depending on the mechanic the labour can vary a lot and depending on your engine the component will also have a different price, however, we estimate that the repair, labour included will cost you between 800 and 2000 euros , knowing that the component alone costs between 400 and 1000 euros.

If you have any additional questions about the GMC Yukon, do not hesitate to consult our GMC Yukon category.