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clanking noise coming from the engine

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Old 04-03-2011, 07:46 PM   #1
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clanking noise coming from the engine

Just the like the title says, there's a clanking noise coming from the engine when going pretty fast (55+). It doesn't have a steady rythm to it, it's pretty speratic. Only happens when I'm on the highway pressing the gas pretty good or when I'm going 50 or so and going up a hill, so I guess it only happens when the engine is working pretty hard. Started happening a few days ago and it's pretty noticable. Any ideas what it could be? It's hard to pinpoint exactly where it's coming from since it only happens when the truck is moving.
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Old 04-03-2011, 09:20 PM   #2
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sounds like you might have a little rod knock to me
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Old 04-03-2011, 10:01 PM   #3
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Quote:
Originally Posted by DaytonLax14 View Post
Just the like the title says, there's a clanking noise coming from the engine when going pretty fast (55+). It doesn't have a steady rythm to it, it's pretty speratic. Only happens when I'm on the highway pressing the gas pretty good or when I'm going 50 or so and going up a hill, so I guess it only happens when the engine is working pretty hard. Started happening a few days ago and it's pretty noticable. Any ideas what it could be? It's hard to pinpoint exactly where it's coming from since it only happens when the truck is moving.
If you rev up in nuetral do you hear it?
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Old 04-04-2011, 03:57 AM   #4
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Quote:
Originally Posted by jblair View Post
sounds like you might have a little rod knock to me
sorry to be dumb but what does that mean?
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Old 04-04-2011, 05:19 AM   #5
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Knock sensor might have gone south so the timing isn't being properly adjusted under load. In my old van I used to drive with the engine cover open and adjust the timing to the point where it didn't knock under load in third gear, of course no easy way to do that in a new vehicle.
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Old 04-04-2011, 04:39 PM   #6
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Quote:
Originally Posted by DaytonLax14 View Post
sorry to be dumb but what does that mean?
it's where the push rod hits the head, but honestly it's pretty much impossible to know or even guess what the problem is with abnormal engine noises without being there and using a stethoscope. That's one of those things that you should take to a shop and have them look at it.
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Old 04-04-2011, 04:42 PM   #7
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No push rod in that motor
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