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knocking,pinging sound???

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  #1  
Old 12-26-2010, 09:40 AM
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Didn't leave something in there did you?

How does it run? Fan isn't hitting the shroud is it?
 
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Old 12-26-2010, 09:41 AM
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Default knocking,pinging sound???

Ok,i just changed out my water pump..i flushed it before i changed it..i changed thermostat...i drained the water out of the radiator..started to rain,so i covered everything up with a blanket and shut the hood....It has been in the 20' up to the high 40's here..I came back about 3 weeks and finished the job..when i went to start my p/u. it didnt want to turn over. it turned over about 4 times and locked up,so i kept trying and trying until my starter started smoking..i let it rest for awhile and tried it again,finally got it started. but now i have a knocking sound under the hood. it sounded like it was coming from the pass. side. So i took off the valve cover on that side, everything looks fine. But now the knocking, sounds like it is coming from under the intake.Im lost i have no idea where to start looking now or where to go. Any ideas....
I have a 98 dodge ram 4wd, 318 mag..Thanks for any help and replies..
 
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Old 12-26-2010, 10:29 AM
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no,all bolts acounted for,except for 1 metal screw that holds the rad shroud on...Actually the engine runs smooth,no missing at all
 
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Old 12-26-2010, 10:39 AM
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did you change the timing chain while in there ?
 
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Old 12-26-2010, 10:50 AM
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No, i started too..but left it alone
 
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Old 12-26-2010, 11:38 AM
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remove the belt and spin all the pulleys - especially the water pump. anything feel like its not right.
 
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Old 12-26-2010, 11:45 AM
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checked that,thanks
 
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Old 12-26-2010, 01:44 PM
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what kind of sound would i have if a lifter was stuck...
 
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Old 12-26-2010, 06:25 PM
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the fact that you smoked the starter trying to get it to crank sounds bad it may be possible that you have a coolant leak into a cylinder or fuel leak into a cylinder that may have hydro locked the motor .cranking it to the point of smokin the starter may have damaged a bearing or rod .try using a long screwdriver held to your ear and touch it to diffrent areas on the motor to pinpoint the general area of the knock .also if you flushed the cooling system and did not drain the block you could possibly have cracked a cylinder if the temps have been in the 20s.a lot of water stays in the block even if you had the bottom hose off you still have more than a gal of fluid in the motor.pressure test your cooling system .check your plugs for coolant or excessive fuel/oil,check your oil for coolant .you can also connect your radiator pressure tester and run the motor briefly to see if it builds excessive pressure quickly ,this will tell you if your leaking compression gas into the cooling system
 

Last edited by rond97sport; 12-26-2010 at 06:29 PM.
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Old 12-26-2010, 09:40 PM
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lifter noise would be a tapping or ticking sound from under the intake.
it might cause low power on one cylinder and/or rough idle, or it might have no obvious effect at all other than a little noise.
 


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