pinging/rattiling noise
Thread Starter
TECH Regular
Joined: Feb 2005
Posts: 433
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From: Elizabeth City, NC
pinging/rattiling noise yesterday i noticed a pinging noise coming from the what seems to be left side of my engine. at first i thought i dropped a push rod, but then i realized my engine was still running. second i thought i had broken a valve spring so i took off both valve covers and checked, both sides had all of their rods and all the springs were good.
this noise only seems to happen at low rpms 2500 and less. it sounds like someone threw ball bearings in my cylinders.
could this be detonation? or maybe a really really noisey pilot bearing?
please any help is appreciated
this noise only seems to happen at low rpms 2500 and less. it sounds like someone threw ball bearings in my cylinders.
could this be detonation? or maybe a really really noisey pilot bearing?
please any help is appreciated
Originally Posted by badtexasZ28
yesterday i noticed a pinging noise coming from the what seems to be left side of my engine. at first i thought i dropped a push rod, but then i realized my engine was still running. second i thought i had broken a valve spring so i took off both valve covers and checked, both sides had all of their rods and all the springs were good.
this noise only seems to happen at low rpms 2500 and less. it sounds like someone threw ball bearings in my cylinders.
could this be detonation? or maybe a really really noisey pilot bearing?
please any help is appreciated
this noise only seems to happen at low rpms 2500 and less. it sounds like someone threw ball bearings in my cylinders.
could this be detonation? or maybe a really really noisey pilot bearing?
please any help is appreciated
Originally Posted by badtexasZ28
no i didnt upgrade the lifters, is there a way i can check it out without pulling my heads back off?
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Originally Posted by badtexasZ28
well this is only sometimes that i get the noise, wouldnt i be getting the noise all the time if it were a lifter?
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Originally Posted by RGVWS6
I really dont know the noise, but i was hearing a weird noise, and i had an exhaust leak. The gasket was like half burnt. So i had to put the stock metal ones back on.
A flat spot on the roller of the lifter will eventually wipe out that cam lobe it is riding on if it hasn't already. I wouldn't run it much more until you find the problem.
If it is a lifter, you could replace them with either the Crane or Comp Cams stock replacements. I have had good luck with the Cranes. Be sure to check the cam if you find a bad lifter.
Let me know if we can help.
If it is a lifter, you could replace them with either the Crane or Comp Cams stock replacements. I have had good luck with the Cranes. Be sure to check the cam if you find a bad lifter.
Let me know if we can help.
Thread Starter
TECH Regular
Joined: Feb 2005
Posts: 433
Likes: 0
From: Elizabeth City, NC
ok now i am baffled. i pulled the car into the garage today to start tearing down my engine and it was making the sound pretty consistantly, so i got out my mechanics stethoscope... i checked just about everywhere you could on the engine and could not locate the noise. after doing some searches both here and a couple of other lsx.com's i was for sure thinking my timing chain was fucked, but the noise is coming from the back of the engine. also it drags *** when you first go to start it up (which is another reason i was thinking chain was bad causing it to load up) anyone have any other thoughts on what my problem could be? maybe something to do with the tranny? it usually only does the noise when i am in gear and moving, but every once in awhile it will rattle a little bit while idleing........i just dont know where to start......
Originally Posted by RGVWS6
I really dont know the noise, but i was hearing a weird noise, and i had an exhaust leak. The gasket was like half burnt. So i had to put the stock metal ones back on.
Thread Starter
TECH Regular
Joined: Feb 2005
Posts: 433
Likes: 0
From: Elizabeth City, NC
well i didnt get around to tearing my engine down yet. but i am not so sure it is even an engine problem....the sound comes from the rear most part of the engine and i pick up nothing with the stethoscope anywhere on the engine. ill try and get some audio