Help My LS-1 is ticking/ knocking
01-06-2011, 08:39 PM
#1
Help My LS-1 is ticking/ knocking Well I have noticed a ticking coming from my 01' LS-1 that at first a few days ago I was thinking that I must need new header gaskets.
However today it has started to get allot louder and is sounding more and more like a rod knock from a spun bearing.
Maybe I sprayed the car too much last summer? The motor and car only have 45K miles but I drive it hard everyday with the cam and all the other mods in my sig.
Is there any way to tell if it is a rod bearing? I assume a compression check wouldn't hurt, but it won't tell much. If it is a rod bearing is there a chance I can just change bearings and rods and not have to do anything to the crank and pistons etc... ?
Where should I go from here? I guess I could pull the lifters and make sure I didn't collapse a lifter?
it was low enough to turn the amber add oil light on the other day (it was only a qt. low though)
Anyway what would you do now if you were me
Is it time to pull it?
However today it has started to get allot louder and is sounding more and more like a rod knock from a spun bearing.
Maybe I sprayed the car too much last summer? The motor and car only have 45K miles but I drive it hard everyday with the cam and all the other mods in my sig.
Is there any way to tell if it is a rod bearing? I assume a compression check wouldn't hurt, but it won't tell much. If it is a rod bearing is there a chance I can just change bearings and rods and not have to do anything to the crank and pistons etc... ?
Where should I go from here? I guess I could pull the lifters and make sure I didn't collapse a lifter?
it was low enough to turn the amber add oil light on the other day (it was only a qt. low though)
Anyway what would you do now if you were me
Is it time to pull it? 
01-06-2011, 09:24 PM
#3
Actually I just changed the oil and drove it about 30 miles with only a gallon in it. The low oil amber light wa on but it was only a qt low, ie.. the bottom of the xxx's on the dip stick and the add mark.
I am going go and get another QT. right now and see if that makes a difference. I am using Shell Rotella T6 Fully synthetic 5W-40.
I will go add the Qt it was low and take it for a easy drive and see if the knock goes away. If not how do I check for a collapsed lifter?
A leakdown test or actually a simple compression test should tell, huh?
I am going go and get another QT. right now and see if that makes a difference. I am using Shell Rotella T6 Fully synthetic 5W-40.
I will go add the Qt it was low and take it for a easy drive and see if the knock goes away. If not how do I check for a collapsed lifter?
A leakdown test or actually a simple compression test should tell, huh?
01-06-2011, 09:36 PM
#4
On The Tree
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easy way to isolate a cylinder is to pull off coil wires, id pull off the low side voltage wires(the weatherpack connectors) from each coil one at a time. if it is a rod knock the knock should quieten down when you reach the cylinder with the problem, it will throw a check engine light but thats prob your easiest way to tell. a quart low of oil i cant see being a problem, ive seen em with half a litre left in the pan and still running. does it seem to misfire?
