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2004 Chevy Impala Timing Belt Replacement

Tiny
O&W
  • MEMBER
  • 2004 CHEVROLET IMPALA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 90,600 MILES
I'm the original owner of this vehicle and have carefully maintained it since new. With a little more than 90,000 mostly freeway mileage on it, I'd like to know the recommended mileage for replacement of the timing belt.
Thanks for your help.
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Tuesday, January 6th, 2009 AT 11:28 AM

8 Replies

Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
This vehicle does not have a timing belt, it has a timing chain. The timing chain should last the life of the vehicle, just keep the oil changed and you should have no problems.
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Tuesday, January 6th, 2009 AT 12:02 PM
Tiny
JOHNTM
  • MEMBER
  • 4 POSTS
  • 2004 CHEVROLET IMPALA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 161,000 MILES
At 161,000 miles, I have had absolutely no mechanical problems with my V6 Supercharged 2004 Impala SS (knock on wood). I am wondering if I should replace the timing belt as a precaution. If so, can I find instructions on-line as to how to do it? I am a competent weekend mechanic. On pre-emission vehicles.
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Tuesday, July 9th, 2019 AT 5:14 PM (Merged)
Tiny
JDUBUYA
  • MEMBER
  • 10 POSTS
Yes, at 161,000 you should def chAnge your timing belt. You can go onto autozone. Com and look up your vehicle and there you will find step by step instructions and diagrams. I wont lie to you though, changing the timing belt is very tricky and time consuming
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Tuesday, July 9th, 2019 AT 5:14 PM (Merged)
Tiny
JERRWDY
  • MEMBER
  • 12 POSTS
I believe it has a timing chain
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Tuesday, July 9th, 2019 AT 5:14 PM (Merged)
Tiny
JERRWDY
  • MEMBER
  • 12 POSTS
Last I heard the 6 has a timing chain
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Tuesday, July 9th, 2019 AT 5:14 PM (Merged)
Tiny
JDUBUYA
  • MEMBER
  • 10 POSTS
It does
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Tuesday, July 9th, 2019 AT 5:14 PM (Merged)
Tiny
JOHNTM
  • MEMBER
  • 4 POSTS
Thanks for the info folks.

My experience with timing chains is that over time, they stretch and alter the timing/performance of the engine.

Since it is a chain and not a belt, do you still think it needs to be changed now or possible to wait until a change in performance is noticed?
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Tuesday, July 9th, 2019 AT 5:14 PM (Merged)
Tiny
JERRWDY
  • MEMBER
  • 12 POSTS
If your engine is running fine, I would do nothing. A timing chain normally will not break, it will loosen some but if performance is ok, leave it alone
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Tuesday, July 9th, 2019 AT 5:15 PM (Merged)

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