Nasty metal on metal engine noise.

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M

MSLX

Joined
Jan 27, 2023
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MS
Good morning, all.

Full disclosure on a scale of 1-10, my mechanical inclination = 0. It's been abnormally cold, for MS the past few days. Drove my '11 LX (~92k miles) on some errands. Drove about 15 miles to my first stop, left truck running, when I got out it sounded god awful at idle. A rapid metal on metal knocking/ticking. Drove straight to the goodyear shop where I get tires/oil, etc. They immediately heard it, said it sounded internal to the engine and suggested I take it toyota (no Lexus ship in town). At the last second one of the guys hopped in gave it some gas and the noise quickly went away. I drive like an old lady and it's fairly rare for RPM's to exceed 3k.

Their guess: perhaps a lifter lost prime and still suggested a Toyota once over.

Just wanted to see if anyone has experienced this or has any thoughts? Thanks all!
 
Neglected to add: drove several more times and the issue did not repeat...I am revving the RPM's prior to putting it in gear.
 
Do some searching on the broader internet for 5.7 tundra timing chain slap and see if that noise is at all like what you had.

Usually it’s startup-only but worth looking into.
 
Watched a few videos on it, sounds an awful lot like that, will dig deeper. I'm much obliged, thank you!
 
Agree that's the common chain slap. Commonly due to the hydraulic chain tensioner. Doesn't necessarily mean it's worn or failed. Sometimes if left to sit long enough, oil pressure bleeds down and they need pressure to take a set again. It can be due to varnish from extended oil change intervals binding the tensioner. Can also be wear.

If it happens more regularly, there's some easy resolutions. Swap your oil to the next higher viscosity. I would recommend 0W-30 to keep the cold start protection in place. I use this oil solely, moreso for higher load towing protection. Just as many have swapped to 5W-30.

There's anecdotal evidence that if it's due to varnish, running sea foam additive to the oil for a few hundred miles before an oil change has helped.

Best thing that can be done for the engine is to avoid long oil change intervals.
 
MSLX said:
Good morning, all.

Full disclosure on a scale of 1-10, my mechanical inclination = 0. It's been abnormally cold, for MS the past few days. Drove my '11 LX (~92k miles) on some errands. Drove about 15 miles to my first stop, left truck running, when I got out it sounded god awful at idle. A rapid metal on metal knocking/ticking. Drove straight to the goodyear shop where I get tires/oil, etc. They immediately heard it, said it sounded internal to the engine and suggested I take it toyota (no Lexus ship in town). At the last second one of the guys hopped in gave it some gas and the noise quickly went away. I drive like an old lady and it's fairly rare for RPM's to exceed 3k.

Their guess: perhaps a lifter lost prime and still suggested a Toyota once over.

Just wanted to see if anyone has experienced this or has any thoughts? Thanks all!
Click to expand...

I suggest taking a short video clip of it and post it here to help diagnose, but it sounds like a timing chain tensioner issue like I experienced. Check this post for a video and the full list of parts replaced - perhaps a little overkill, but it's quieter than ever now.

forum.ih8mud.com

Build - mcgaskins' 2013 build thread - Palladium

Thank you! Wow that's funny, and yes that's us. It's a small world! I'll have to come checkout your setup someday! My truck has very little done to it, but hoping to start getting some more stuff done this year.
forum.ih8mud.com forum.ih8mud.com
 
04UZJ100 said:
Stay away from Goodyear for anything, please. For the sake of your 200.
Click to expand...
That depends on the Goodyear you are talking about. Most Goodyear’s are Indy owned franchises. Like any Indy, you need to know what they can and can’t do. Sure, a lot of them can’t do much more than tires and brakes. I often have a local Goodyear do work on my 200 but I also know the owner and he only has certain mechanics touch my truck plus I also have some clue as to what good and bad look like. To say all Goodyears are bad or can’t work on a 200 isn’t true. I would agree if you are not mechanically inclined and also don’t know the competency of the shop then be careful with chain franchises. Get recommendations form local cruiser heads.
 
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