Ticking/Chrysler minivan/??flexplate

[Gene]

Hi everyone,

 

This has nothing to do with anything jeep, sorry about that… Wondering if I could have the thoughts of the collective wisdom of this board about another vehicle. We also have a 2005 Chrysler Town & Country, 3.8 V6, automatic, 147,000 miles.

 

It has an irregular ticking noise. It is noticeable at idle, when engine speed is increased it stays about the same intensity, or perhaps get slightly softer.

 

What's puzzling me is that it is totally irregular. It will be tick tick… tick…… Tick tick tick… Tick and so forth. It seems too irregular and slow to be valvetrain. Certainly too slow to be a rod bearing.

 

Anyone have experience with cracked flex plates? Any easy way to diagnose these? Any other thoughts?

 

Thanks.

 

Gene

[HOrnbrod]

I'd check the balancer. That's about when the harmonic balancer starts to shred on these engines.

[Gene]

I'd check the balancer. That's about when the harmonic balancer starts to shred on these engines.

Hi Don,

 

Thanks for the thought.

 

The harmonic balancer is relatively new, probably no more than 20,000 miles on it.

 

I'll take a look at it anyway.

 

Thanks.

 

Gene

[HOrnbrod]

No need then if it's been changed already. I had a Wrangler briefly with the 3.6 - wasn't impressed. Only had it a few months and got rid of it, so didn't have much time with it. But the balancer went on it whilst I had it......

[Rockfrog]

Check the exhaust manifolds, the 3.8L had a history of cracking exhaust manifolds ... even more so than a 4.0

 

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