Engine drain plug location

Tiny
VLADSC50
  • MEMBER
  • 1992 TOYOTA CAMRY
  • 3.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
Hi everyone, I want to know is it necessary to find my engine drain plug to flush out the entire coolant system in my 3VZ-FE engine on my car listed above LE? If so, where is the location to the plug? I read in my service manual said that it’s located on the right side of the engine but I can’t see it. If it’s not necessary do I just use the radiator plug to drain everything?

Thank you.
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Sunday, December 13th, 2020 AT 7:02 AM

3 Replies

Tiny
KASEKENNY1
  • EXPERT
You are correct that this drain plug is on the right side of the engine block. It will be in the coolant passage as it is there to drain the coolant out of the block. However, this is not required in order to flush the system.

Basically this plug is there for when someone is just draining and filling the cooling system. It allows you to get the coolant out of the block. However, if you flush the system then that is not necessary. Here is a guide that helps with this:

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

If you can't flush it and just drain the radiator and then refill it with water only (no coolant) and then drain it a couple more times until the water comes out clear, then that will be the same effect. This drain plug is there to make this easier but as long as you get the old coolant out and new coolant in, the end result will be the same.

I attached the entire process below for your review.

Let us know if you have questions. Thanks
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Sunday, December 13th, 2020 AT 7:20 AM
Tiny
VLADSC50
  • MEMBER
Thank you so much for your help. I had a feeling it wasn t necessary to find the engine drain plug to flush out the system. I do have a question regarding to flushing. Is it best to use distill water to clean out my whole coolant system since tap water is not filtered?
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Tuesday, December 15th, 2020 AT 5:16 AM
Tiny
KASEKENNY1
  • EXPERT
It is not necessary only if you are going to leave the water in the system. Just to flush it, you can use a garden hose if you want to. The minerals in the tap water are what can be corrosive so distilled water does not have these minerals. However, if the water is only going to be in there for a short time then it will not do any damage. Then you are going to replace with coolant when you are all finished so it won't stay in there.

Let us know how you make out. Thanks
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Wednesday, December 16th, 2020 AT 4:34 PM

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