Timing Chain Question

The Gas and Diesel Engines - VQ40De, VK56DE, YD25DDTi, V9X, Transmission, Transfer Case, Oil, Differentials, Axles, Exhaust...

Moderator: volvite

User avatar
NWPathfinder
Posts: 84
Joined: Sun Feb 24, 2019 8:10 am
Location: Vancouver Island

Timing Chain Question

Postby NWPathfinder » Tue Jun 11, 2019 2:32 pm

Hey All,

Been reading in here for quite a bit since I bought my 2009 Pathfinder and I'm wondering if I should replace my Timing Chains, preemptively? It has 116000 miles on it and Runs like a top but, I'm just wondering if it's something I should do before something breaks, along with the tensioners, and guides inside, etc.

Thoughts??

Thanks all.


User avatar
smj999smj
Site Admin
Posts: 6054
Joined: Sun Jan 22, 2012 11:13 pm
Location: Prospect, VA

Postby smj999smj » Tue Jun 11, 2019 4:34 pm

If it's not making noise, leave it alone. The problem occurred because of poorly stamped upper chain links caused by worn tooling. So, not all 05-10 VQ40DE's will encounter an issue with the upper chains cutting into the plastic tensioner faces and, if they do, the amount of wear on the tooling will dictate when it will create an issue. Some people have had the issue occur as low as 30,000 miles while others have had it occur well over 100,000 miles. It happened on both of my Pathfinders; it occurred at around 80,000 miles on my 06 and at 140,000 on my 08. The infamous chain "whine" will let you know if you need to take action!

User avatar
NWPathfinder
Posts: 84
Joined: Sun Feb 24, 2019 8:10 am
Location: Vancouver Island

Postby NWPathfinder » Tue Jun 11, 2019 4:38 pm

Super, I heard the whine in a video today and will listen for it!!!
Thanks for the clarification!

TooTallMike
Posts: 68
Joined: Wed Oct 28, 2015 11:32 am
Location: Jblm, Washington

Postby TooTallMike » Sat Jun 15, 2019 12:11 am

Ohh trust me when you have it you'll know.

I replaced mine and at first it seemed daunting and nearly impossible but once I got into it and got it done it's easily a weekend job if you take your time and nap occasionally. ðŸ‘

docwatson
Posts: 151
Joined: Fri Jan 23, 2015 5:33 pm
Location: United States

Postby docwatson » Sun Jun 16, 2019 6:19 pm

After I replaced mine I realized that I have an electric cooling fan. Hadn't heard it in a year!

User avatar
NWPathfinder
Posts: 84
Joined: Sun Feb 24, 2019 8:10 am
Location: Vancouver Island

Postby NWPathfinder » Mon Jun 17, 2019 10:28 am

Thanks All!

I figure when it starts to whine I'll get my hands dirty and get after it! I've got a second vehicle, so I can take my time, when it comes to it!!!

I was actually shocked that I have an Electric fan and Clutch fan. Talk about cooling!!!


Return to “R51 Engine, Driveline and Powertrain”