Author Topic: Rough idle and clanking noise  (Read 2097 times)

HarrisonS

  • Newbie
  • *
  • Thank You
  • -Receive: 0
  • Posts: 20
    • View Profile
Rough idle and clanking noise
« on: December 14, 2007, 05:09:28 PM »
Hey guys,

A little background:
So a few months ago I was getting a intermittent check engine light, and the fault code reported that it was a faulty coolant temp sensor.  So I finally got around to replacing it.   I had to take off both the lower and upper intake manifolds to get to it.  After getting out a cross threaded cts, I was finally able to replace it and put the car back together.  I drove I around that night (probably about 10 miles), and then the next day as I was on the freeway, my car started running very rough, and was loosing power.  I was able to drive it so a safe spot.  I started it a few times, however, after about 2 or 3 starts it started making a very rough diesel noise.

Thinking it was a timing chain issue, I towed it back home and pulled the lower oil pan, however there was nothing in there. Today I pulled the manifolds off again, and one of the intake valve stems is extremely dirty (only one of them is dirty the other 7 look clean).

What does this mean?