cold engine clatter
03-19-2006, 08:32 PM
#1
Teching In
Thread Starter
Join Date: Jul 2002
Location: texas
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
cold engine clatter in the mornings when i first start the car, i hear a light clatter when i accelerate. its loudest at about 2500 rpm. but after it warms up i dont really hear it. could it be something major or should i just turn the radio up a little louder?
03-19-2006, 08:59 PM
#2
Piston slap. Pretty common. Its the cold piston rocking around in its bore until the heat expands the aluminum piston and takes up the extra play. I try and keep the rpms as low as possible until its fully warm and any cold start noise goes away.
03-20-2006, 09:58 PM
#3
Teching In
Thread Starter
Join Date: Jul 2002
Location: texas
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
thanks for the info. i was gonna order some headers and gears for my T/A but i wanted to make sure i didnt need to spend the money on internal parts first. any advice? 
03-20-2006, 10:26 PM
#4
No piston slap is pretty normal for a cold LS1 (and from what I've read most other LSx engines), unless you have it when it's warm, then it may be a more serious problem, go ahead and spend the money on the headers and gears
FWIW my 02 sounds like a diesel when it first starts, but still runs pretty good, and (knock wood) I've had no problems at all
FWIW my 02 sounds like a diesel when it first starts, but still runs pretty good, and (knock wood) I've had no problems at all