k9sar Posted September 29, 2017 Share Posted September 29, 2017 This just started last night. Using a stethoscope, the noise is audible on the valve covers but is very loud on the bracket in the middle of the view. I don't know enough about these engines yet and would like some ideas before tearing into it. https://www.youtube.com/watch?v=c5rmMPOUFss Link to comment Share on other sites More sharing options...
k9sar Posted September 29, 2017 Author Share Posted September 29, 2017 the odd part is that the nosiest part is the stretch across the top of the timing cover between the two cams. I wonder if something broke loose (a cam guide or timing chain guide) and is up there rubbing on the chain. 1 Link to comment Share on other sites More sharing options...
onespiritbrain Posted September 30, 2017 Share Posted September 30, 2017 Definitely sounds like the chain rubbing against something. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Slartibartfast Posted September 30, 2017 Share Posted September 30, 2017 That doesn't sound good. I've read about timing chain tensioner issues on the 4.0s so that's my guess as well. Link to comment Share on other sites More sharing options...
k9sar Posted October 2, 2017 Author Share Posted October 2, 2017 Well, I'm up to my eyeballs in other projects and am trying to recover from a leg injury so I did the unthinkable.... I handed the keys over to the service manager at my local dealership and told him to give me a call when they pull it apart and let me know what they find. I told him my suspicions and he knows I've done the majority of my own work on my former '95 so I don't think they'll try to pull anything on me. I know there are some things that will most likely need to be repaired/replaced and some of them will be easier with the fan out and the front of the engine pulled apart so I asked him to put together a list with prices and I'll let him know what I'm comfortable just throwing money at so I don't have to do the work. If this were my old VG30E, I'd have had it torn down and halfway back together but I'm not yet fully familiar with the VQ40DE engine. Link to comment Share on other sites More sharing options...
mjotrainbrain Posted October 2, 2017 Share Posted October 2, 2017 but I'm not yet fully familiar with the VQ40DE engine. And how do you intend to become familiar? Just bein' cheeky, hopefully they don't ask for too much $$$. Link to comment Share on other sites More sharing options...
k9sar Posted October 2, 2017 Author Share Posted October 2, 2017 And how do you intend to become familiar? Just bein' cheeky, hopefully they don't ask for too much $$$. I'll become familiar the next time I have spare wheels around and I can take my time. Kinda pressed for transportation at the moment Figure I have another 10 to 15 years on this truck Link to comment Share on other sites More sharing options...
adamzan Posted October 4, 2017 Share Posted October 4, 2017 Are you expecting it to last as long as the 95 did? Sure they don't have the rust issues but the rest of it just doesn't seem to be built as well. Link to comment Share on other sites More sharing options...
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