.Dam near all LS1s tick
. 
ticking on cold start?
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Teching In
Joined: Sep 2009
Posts: 14
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From: maryland
ticking on cold start? so i just purchased a 00 ws6 m6, 116k on the clock, changed the oil to mobil1 syn. 5w-30 with wix filter, now noticing on start tick
about 100* warm up theres a slight tick, lifter mayb? bad tune? spark knock?....
about 100* warm up theres a slight tick, lifter mayb? bad tune? spark knock?.... 
How bad is it? Mine does a little but not too bad, when i removed the air tube from the manifold on my last spark plug change i found that the gasket had crumbled and gotten stuck in the tube, i cleaned it and got rid of my SES light that i was never able to figure out, however it makes a LOUD ticking now for the first 3 min or so (while the secondary air is working) on a cold start then goes away. I just ordered a new one, if i were you i would check that out.
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Mine ticks, but it's more of the sewing machine noise everyone talks about with cammed cars. 129k
I've got a 2000 Z71, 5.3, with 151k on it. It has the famous cold start knock / piston slap, but only does it for the first 20 seconds the truck is running and it does it worse in the winter. It won't hardly do it at all in the summer. This sounds more like the bottom end is about to come apart. I usually sit in the driveway till it stops and go about my business. Doesn't matter what oil or filter I run, same outcome.
Do a search, it's a very common problem and seems to not affect the life of the engine.
I've got a 2000 Z71, 5.3, with 151k on it. It has the famous cold start knock / piston slap, but only does it for the first 20 seconds the truck is running and it does it worse in the winter. It won't hardly do it at all in the summer. This sounds more like the bottom end is about to come apart. I usually sit in the driveway till it stops and go about my business. Doesn't matter what oil or filter I run, same outcome.
Do a search, it's a very common problem and seems to not affect the life of the engine.
Look, I know you guys are going to think this is a plug for a product, but in ALL SERIOUSNESS, since switching to Castrol Edge, my engine has quieted down SUBSTANTIALLY.
I first tried the stuff in my Escalade, refusing to believe anything was better than Mobil 1, but Wally World was out at the time, so I did the Escalade with it.
Night and day difference, seriously, no joke. I then did Edge with the 01 SS, and man guys, much quieter.
Give it a try. It won't disappoint.
I first tried the stuff in my Escalade, refusing to believe anything was better than Mobil 1, but Wally World was out at the time, so I did the Escalade with it.
Night and day difference, seriously, no joke. I then did Edge with the 01 SS, and man guys, much quieter.
Give it a try. It won't disappoint.
I know this is LS1tech but the following article on oil seems to make a lot of sense and applies to this subject even though it is from a turbo dsm 4g63 shop. It goes over how all of the modern oils are primarily concerned with gas mileage and emissions and that all of the oil you buy in the normal stores is GF-4 including Mobil 1 which is not an oil for racing engines. http://store.forcedperformance.net/m...otor%20Oil.pdf It also includes a list of good racing oils and how much they should cost.
I switched from a synthetic oil to conventional castrol 10w-40 and my car got alot quieter. Every so often it will tick a little and fade away. ls1's are known for this. I wouldn't worry to much about it though unless it is excessively loud. good luck.
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From: Euless Tx