2009 Mitsubishi Endeavor Timing Belt

Tiny
WELDRIDGE
  • MEMBER
  • 2009 MITSUBISHI ENDEAVOR
  • 126,000 MILES
I recently changed the timing belt in my 2009 Mitsubishi Endeavor (3.8l V6 6G75). I followed all of the appropriate steps in a number of different manuals, but am finding that when the truck sits for an extended period, the timing belt ends up with "slack" in between the left and right camshaft sprokets and the autotensioner is depressed all the way in. It runs perfect when it is warm, but upon cold starts, there is a 2-5 second knocking sound.

Following the installation instructions, the tensioner was adjusted correctly, all timing marks were aligned and there was no play in the belt at all.
Tuesday, April 30th, 2013 AT 12:04 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Auto tensioners tend to be depressed when engine is off as the camshaft would be turned reversedly depending on where they stop. This is normal and nothing to worry about.

The 2-5 second of knocking ( I believe it is tapping/clicking type of noise) is most probably from the hydraulic valve lifters (HLA). This is a rather common occurrence with such engines and only way to get rid of them is to have the HLA and engine oil replaced. Not all the HLA need be replaced, only those making noises but you can try servicing them if you are a DIY person.
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Tuesday, April 30th, 2013 AT 5:08 PM

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