I am going to attempt to perform the valley leak repair myself. I am having to add coolant at least once or twice a month currently. I do see the signs of a valley plate leak. I have read this post -
And have also watch Car Care Nut do the repair on YouTube. One thing he said is that he always replaces the heat exchanger when he does this repair due to the possibility of it having a very small crack that you might not be able to see. Looking through the posts here, I didn’t see anyone saying they replaced the exchanger when doing this fix. Do you all think it’s necessary to replace the exchanger? Also are there any tools that are a must have that make this job easier? My LC is a 2013 with 154k miles on it. I am mechanically inclined but have not taken on a repair like this. I have done thermostat replacement and temp sensor replacement before so not completely green I suppose.
And have also watch Car Care Nut do the repair on YouTube. One thing he said is that he always replaces the heat exchanger when he does this repair due to the possibility of it having a very small crack that you might not be able to see. Looking through the posts here, I didn’t see anyone saying they replaced the exchanger when doing this fix. Do you all think it’s necessary to replace the exchanger? Also are there any tools that are a must have that make this job easier? My LC is a 2013 with 154k miles on it. I am mechanically inclined but have not taken on a repair like this. I have done thermostat replacement and temp sensor replacement before so not completely green I suppose.