anyone ever had thier lifters to go bad on a ls1 i have mine took apart now to find the ticking noise that it is making it is not the usual valvetrain noise

 

You will have to let me know when you find out what the ticking noise is. I am having a loud ticking/clicking form my valves and it seems to be coming form the drivers side the most. And i can also hear a knocking sound along with the ticking/clicking sound. I have an 02 Z28 with 20,650 miles on it. Im going to take it to the dealer this week to see whats up. But the noise it most loud when its cold at first start it up in the morning. After it warms up its about 80% quieter. But still noticeable.


Joel

 

The knocking sound is most likely piston slap................welcome to the club. That constant, light "ticking" noise? I don't know what it is, but my car does it too.

 

i also have the light ticking..annoying sometimes..

 

my car didnt do it till i put a cam in it when i first got it in it had a very small tick and now it has got louder i think it is a pushrod my car only has 26k on it it shouldnt be a lifter

 

i also am experiencing this issue it would seem. i have good oil pressure, so i have ruled out lack of oil. it does remind me of rocker/valve lash tho... interesting that other have the same prob. it is quite noisy compared to other f bodies i have heard around my area. i doubt it is normal. it almost sounds like a diesel engine. uuugggg.

anyone found out possible common probs for this? i have heard that pushrods are weak in the ls1 motors, perhaps the previous owner was too heavy on the pedal...

 

I had lifter problems in my '98 Z28...dealer replaced them under my extended warranty around 60K miles. I then developed a VERY LOUD knock/tick at 73K miles, but my warranty had just run out (5 year/75K GMPP). I wanted more power anyway, so I just opted to replace my LS1 with and LS6, so my LS1 is sitting on a stand in my garage and I've had several people that listened to it before I pulled it say they thought it might just be a bad lifter again. I'll tear into it one of these days to find out...