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Rear valve cover

Tiny
PHARMCAT
  • MEMBER
  • 2002 TOYOTA HIGHLANDER
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
I need to replace the original rear valve cover. I understand that these 1st generation Highlanders had oil sludge problems back then. I don't think I have a sludge problem, but it does use oil. About a quart per 600 to 700 miles. Only at only at highway speeds, but not around town though. Found y'alls videos on spark plugs and throttle body cleaning. Excellant videos! I learned a lot! Thanks
Wonder if y'all could do one on these valve covers?
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Tuesday, July 14th, 2020 AT 7:53 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

I found a YouTube video for you for the 2005. The 2001 to 2007 are the same.

https://www.youtube.com/watch?v=LlXF9BHhVtI

As far as the usage, the first thing I would do is a wet and dry compression test. From your description of using oil, it sounds like the rings are worn. If they are bad, you will get a difference of 15 pounds or greater on the wet test from the dry test.

https://www.2carpros.com/articles/inner-workings-of-a-car-clutch

Roy
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Thursday, July 16th, 2020 AT 8:29 AM

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