Do Not Sell My Personal Information Jump to content

Internal Coolant Leak


Recommended Posts

I have a 2000 GS300. The check engine light went on, and the engine began to run very rough, like one cylinder wasn't firing. The dealer said that the seal on a casting plug leaked coolant into one of the cylinders and shorted-out a spark plug. The dealer said that it was not a head gasket leak, but a plug used to fill one of the holes used to remove sand in the original casting process. He also said that he had never seen this happen before. Anyone out there heard of this one?

Link to comment
Share on other sites

Casting plugs typically don't fail, but when they do they will do two things; dump your coolant fluid out from or into the valve head and or main block.

It's not a major repair if the coolant did not cause other internal damage!!. If the plug is accesible, typically not, a competent machine shop should be able to evaluate it properly.

When replacing these (plus) use only what Toyota recommends. I only use bronze, but then again my application is marine...

A1SUPERNOVA

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...

Forums


News


Membership