How do I get to the timing chain?

Tiny
HALEIGH MARIE
  • MEMBER
  • 2007 PONTIAC G6
  • 3.5L
  • 6 CYL
  • AUTOMATIC
  • 146,000 MILES
I need to see if my timing chain jumped timed and need to know what to take apart.
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Friday, April 1st, 2022 AT 6:21 AM

4 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

To access the timing chain, the timing chain cover needs to be removed. It's also referred to as the engine front cover.

This will require the removal of several things, including the draining of the engine coolant, water pump, harmonic balancer, and many other components.

I attached the directions below for replacing the timing chain front cover. You aren't replacing the part, but it provides directions for the removal and replacement.

Take a look through them, the beginning explains what needs to be removed first. If you see anything in that list that you need help with, let me know.

Let me know if this helps you or if there is anything I can do to help.

One last thing. If you record the engine cranking and upload it for me to hear, I can oftentimes tell if there is a timing issue based on sound. If you want to do that, let me know. Additionally, the last pic below shows the timing mark positions.

Take care,

Joe

See pics below.
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Friday, April 1st, 2022 AT 9:17 PM
Tiny
HALEIGH MARIE
  • MEMBER
https://youtu.be/EkZN-ToxnwM

This is not my vehicle, but it sounds like this only quite a bit louder.
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Friday, April 1st, 2022 AT 11:21 PM
Tiny
HALEIGH MARIE
  • MEMBER
Some of my current issues I’m seeing:
Ticking sound under hood
A misfire code was thrown (not sure the exact code)
P0011 code thrown
low to no acceleration
if drove at higher speeds it feels like the front ends about to fall apart, sputtering, shaking, and loses power
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Friday, April 1st, 2022 AT 11:23 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Haleigh,

That doesn't sound like a timing chain at all. At first, I was thinking of a lifter. Tell me this. When it is in gear and you gently press the throttle, does the sound change in volume? Also, it could be a belt-driven accessory that is making noise. Have you tried removing the belt and starting it to see if the sound is gone? Note: If you remove the belt, only run it for a few seconds. Just long enough to see if the sound is gone.

I attached a pic below of the belt/belt tensioner. Take a 1/2" drive ratchet and place it where I highlighted it. Turn the tensioner in the counterclockwise direction to loosen and remove the belt.

If that doesn't change the sound, then we need to determine which side of the engine it is coming from and if it is toward the top of the engine or the bottom.

Take care and let me know what you find.

Joe

See pic below.
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Saturday, April 2nd, 2022 AT 8:02 PM

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