Engine noise
Thread Starter
Instructor
Joined: Sep 2008
Posts: 115
Likes: 0
From: Odenville Alabama
Engine noise
on a 2001 is it normal to hear the fuel injectors in the car. I can hear them clicking if the radio is off in the car.
Also I started the car yesterday morning and heard what sounded like a rattle when I started it. (kind of like the old Ford rattle on some trucks when they had a little wear on them) After idle for a couple of minutes I drove it all day with no sign of any other rattle. Any idea???? The rattle was only for about 3-4 seconds right after start. The oil has just been changed and is full.
Thanks in advance for the feed back.
Also I started the car yesterday morning and heard what sounded like a rattle when I started it. (kind of like the old Ford rattle on some trucks when they had a little wear on them) After idle for a couple of minutes I drove it all day with no sign of any other rattle. Any idea???? The rattle was only for about 3-4 seconds right after start. The oil has just been changed and is full.
Thanks in advance for the feed back.
Melting Slicks
Joined: Nov 2007
Posts: 2,336
Likes: 4
From: NW Arkansas
St. Jude Donor '08-'09
the rattle that soon went away is most likely piston slap. LS motors are infamous for this condition, corrected in later assemblies. nothing to worry about until it persists after the engine has reach operating temps.
Melting Slicks
Joined: Nov 2006
Posts: 2,431
Likes: 3
From: Iowa City Iowa
Don't worry about it!
Very common in the early LS engines. My 2000 clicks away when I first start it and after it warms up a bit quiets down to a acceptable level. It's done it since I bought it ( 38,000 miles) and hasn't changed in the past 30,000 miles.
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Drifting
Joined: Feb 2008
Posts: 1,617
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From: San Diego California
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
I've heard a lot of people talk about piston-slap when starting a cold engine and my concern for those is that they are mis-interpretting the sound. If its a tapping sound that goes away anywhere from a few seconds to a minute and the tapping sounds are up high, then its the lifters.
The lifters do wear out over time, usually over 200K miles. If its the lifters, it'll probably start out with a few seconds of tapping and slowly get worse, taking longer and longer for the tapping to go away.
The lifters do wear out over time, usually over 200K miles. If its the lifters, it'll probably start out with a few seconds of tapping and slowly get worse, taking longer and longer for the tapping to go away.
Race Director
Joined: Jan 2003
Posts: 19,802
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From: San Antonio Texas
St. Jude Donor '05-'06-'08
Burning Brakes
Joined: Sep 2007
Posts: 860
Likes: 3
there is a link here (http://pistonslap.com/) where you can compare the sound you're hearing with piston slap...