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Lower engine noise/ need assistance troubleshooting

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  #1  
Old 05-11-2013, 05:48 PM
wtfwhosmike wtfwhosmike is offline
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Default Lower engine noise/ need assistance troubleshooting

Ok, so I have used all the great info I have gotten on previous posts and have not fixed my problem yet. The noise used to be quieter and harder to track but now its been pinpointed to the lower engine. Ive added a video of the noise, ANY help at this point would be greatly appreciated this is my daily driver

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  #2  
Old 05-11-2013, 06:38 PM
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Not good. Remove pan and have a peek inside.

How is your oil pressure?
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Old 05-11-2013, 06:46 PM
wtfwhosmike wtfwhosmike is offline
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oil pressure runs a bit high til truck warms up then seems to run a bit low...
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Old 05-11-2013, 06:52 PM
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Remove plate from front of trans by Torque Converter. Check the bolts and make sure one of them is not backing out. Also could be rod, or crank hitting oil pump pick up.

Pretty definitive knock going on.
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Old 05-11-2013, 08:27 PM
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That sounds like a rod bearring. Or at least the rod hitting something.
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Old 05-11-2013, 08:29 PM
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I second a rod bearing. Or third? Either way.
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Old 05-11-2013, 08:34 PM
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So I pulled oil pan and checked flex plate bolts while I was under there. Nothing looks serious to me, then again im fairly new to this. One thing that did seem a little off was I found small pieces of gravel in my oil pan as well as on the oil pump pick up screen. Any ideas where i need to go from here. I took a few pics ill post as soon as i get them uploaded to my computer
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Old 05-11-2013, 08:52 PM
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http://s1362.photobucket.com/user/wt...4e2f6.jpg.html
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Old 05-11-2013, 09:01 PM
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Make sure that rotating pieces do not hit pump or pick up. Try to shake the rods around on crank by hand. Do you feel any movement? Now use a piece of wood to see if there is any slack on the rods. Do not use anything metal.....
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Old 05-11-2013, 09:40 PM
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I dont really see anywhere it was hitting the pick up at all. I tried shaking the rods by hand. There is as little movement side to side on all of them around the shaft but no movement or slack in the rod tself
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Old 05-11-2013, 10:48 PM
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I would pick on or two of them and plastigage them and see what they look like.

Can someone rotate the crank for you so you can listed for anything unusual (pull plugs first)?
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Old 05-11-2013, 11:03 PM
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yea my brother in law is going to come over in the morning and help me. What are the chances that the problems were due to the gravel in the pick up screen and possibly not enough oil pressure when at temp?
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Old 05-12-2013, 09:10 AM
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I am real curious how gravel got in there... that really isn't a good sign..... Got any pics of the gravel?

Video doesn't seem to work any more either.
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Old 05-12-2013, 10:03 AM
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http://s1362.photobucket.com/user/wt...138b4.jpg.html


you can kinda see the pieces of gravel in the pick up screen here. I am REAL curious as to how it got there as well.
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Old 05-12-2013, 11:36 AM
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Oh, that is sooooo not good. Replace the oil pump at the very least. I would be very tempted to take a look at a few bearings as well.
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Old 05-12-2013, 12:06 PM
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Gravel will get into the motor if the oil fill cap is left off and the truck is driven for some time, seen it before nothing new. Its a rod bearing or a wrist pin one or the other, as posted get a friend to help you.
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Old 05-12-2013, 03:13 PM
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yea just went and picked up new oil pump.. pick up screen and new rod bearings all around... time to get to work
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Old 05-12-2013, 06:04 PM
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Need to plasticgage to check bearings. And if you replace them need to PG them as well. But the visual will be helpful, and PG will tell you if it has excessive wear.
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Old 05-12-2013, 06:04 PM
 
 
 
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