Rattling noise at idle.....normal?
Thread Starter
Burning Brakes
Joined: Aug 2002
Posts: 976
Likes: 0
From: Celina TEXAS!!!
Rattling noise at idle.....normal?
OK I have built engines before, I may be a novice to the C5 but I a not a novice to hot rods, building them or drag racing.
That being said I have a noise that sounds like deflated lifters at idle especially when cold. Its not that bad but it is noticable, sounds like one maybe two from the driver side bank.
The car also seems to "shake" a bit when idling like it has a big cam in it.
I got this used but it only had 6500 miles on it and a service history query shows that it had the re-ring done at about 4500 miles.
This is my first LS1 and was wondering if this is normal behavior.
That being said I have a noise that sounds like deflated lifters at idle especially when cold. Its not that bad but it is noticable, sounds like one maybe two from the driver side bank.
The car also seems to "shake" a bit when idling like it has a big cam in it.
I got this used but it only had 6500 miles on it and a service history query shows that it had the re-ring done at about 4500 miles.
This is my first LS1 and was wondering if this is normal behavior.
Melting Slicks
Joined: Aug 2000
Posts: 2,248
Likes: 1
From: Newland US
Re: Rattling noise at idle.....normal? ()
**** Finger,
If it only makes the noise on a cold start, it may be the solenoid cycling...the one that scavanges the vapors from the charcoal cannister. The solenoid is located near the front of the left bank, so that fits the symptoms.
I guess you could unplug (for diagnostic purposes) it and try a cold start and see if it goes away.
Good luck.
Mark
[Modified by MDT, 3:02 PM 9/4/2002]
If it only makes the noise on a cold start, it may be the solenoid cycling...the one that scavanges the vapors from the charcoal cannister. The solenoid is located near the front of the left bank, so that fits the symptoms.
I guess you could unplug (for diagnostic purposes) it and try a cold start and see if it goes away.
Good luck.
Mark
[Modified by MDT, 3:02 PM 9/4/2002]
