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Replacing the timing belt and the crank?

Tiny
MULINIXMOMMA
  • MEMBER
  • 2007 HONDA ODYSSEY
  • 3.5L
  • V6
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
Replacing the timing belt, and the crank and front cam are at TDC, but rear cam is sitting about 20 to 30 degrees forward. What could cause this, and how to fix it?
Monday, October 24th, 2022 AT 3:28 PM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,527 POSTS
It sounds like the belt has jumped which is common. Here is how to align the timing belt marks and replace the belt. You will need to reset the timing belt tensioner; the instructions are in the images below. Check out the images (below). Please let us know what happens.
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Tuesday, October 25th, 2022 AT 10:33 AM
Tiny
MULINIXMOMMA
  • MEMBER
  • 7 POSTS
It's running, but really rough. The whole van is trembling at low RPMs, but runs fine at high RPMs. Stopped in park, it tries to die out. What would cause this? Hubby and I are not mechanics, but we manage most repairs ourselves. This is just been a nightmare to work on.
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Tuesday, October 25th, 2022 AT 1:49 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,527 POSTS
Do the timing belts line up? If not, the job needs to be redone, so they do. Can you upload a short video of the engine running so I can see what's going on please?
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Wednesday, October 26th, 2022 AT 10:25 AM
Tiny
MULINIXMOMMA
  • MEMBER
  • 7 POSTS
The timing is good, and it is very strange, but it was idling really rough yesterday. I went out to start it today, and now it's idling fine. I'm guessing that it might have been the ECM that was causing the problem. Ever heard of something like that before? I can't explain how, but it seems to have worked itself out.
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Wednesday, October 26th, 2022 AT 10:39 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,527 POSTS
Yes, the PCM learns and recalibrates continually so it is possible. Glad it is fixed for you. Use 2CarPros anytime, we are here to help. Please tell a friend.
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Thursday, October 27th, 2022 AT 10:04 AM

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