When to change the Timing Chain - 2003 9-5, 2.3T - SaabCentral Forums
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  #1  
Old 1st November 2009
tfrag tfrag is offline
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Default When to change the Timing Chain - 2003 9-5, 2.3T

I've heard 60,000 miles is when to change the timing chain... I don't know. What is the answer?

I'm at 60,000 now and wonder if it is time to do it.
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Old 1st November 2009
justin.graeff justin.graeff is offline
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I am pretty sure that unless you can hear the chain hit the side of the valve cover, then you don't have to change it. On my '90 9000, you can hear the chain pretty loudly when I first start the car, then dies down a little as it warms. That car as 200k miles. My 9-5 has 150k and I can't hear it at all.
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Old 1st November 2009
gbest gbest is online now
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Which engine does your car have?
The 6 cylinder has a timing belt which should be changed,(along with the tensioner) at 60k miles.
The 2.3L 4 cylinder has a timing chain, that should last a lot longer (200k+).
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  #4  
Old 1st November 2009
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SaabScott SaabScott is offline
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Timing chains do not have a projected life span the way a belt does.

Ask yourself this ... when do I replace the springs on my car?
When they aren't working properly and there is an indication of this.
A timing chain is the same.
Either it will stretch or the guides will wear ... if either does it too much, you will be able to hear chain noise as the tensioner will no longer be able to manage the tension.
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Old 1st November 2009
tfrag tfrag is offline
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That's great news - I'll monitor it and leave it alone.

You guys are alright!!!

Thank you.
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  #6  
Old 2nd November 2009
aemeeich aemeeich is offline
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The way to tell is to remove the chain tensioner and see how far it is extended.

My 2000 AERO with 150,000 miles had a stretched chain that I just replaced last month. The tensioner was at 17mm - the recommended max is 15mm. I didn't have any strange noises yet as there was still one more click on the tensioner to go, but if it would have gotten that far, there would have been problems.

Michael
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