2002 Chevy Malibu 3.1L Engine tick

Tiny
PENNEY5631
  • 2002 CHEVROLET MALIBU
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 100,000 MILES

The engine has been ticking for over a year now. Was told that the lifters were bad so had all 12 replaced along with all new gaskets, bolts oil, filter and antifreeze. The noise is still there. The car runs great otherwise and burns no oil. It does not go away when engine is warm and tick increases with rpm increase. What can it be and what can |I do to correct it. Can any damage occur

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Wednesday, August 24th, 2011 AT 1:10 AM

14 Replies

Tiny
RASMATAZ
  • MEMBER

Best have your camshaft miked out

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Wednesday, August 24th, 2011 AT 1:25 AM
Tiny
PENNEY5631
  • MEMBER

What is this supposed to be

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Wednesday, August 24th, 2011 AT 11:49 PM
Tiny
RASMATAZ
  • MEMBER

That's where the lifters ride on, that opens the valves

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Thursday, August 25th, 2011 AT 2:35 AM
Tiny
PENNEY5631
  • MEMBER

What does milking the camshaft involve.

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Thursday, September 22nd, 2011 AT 12:16 AM
Tiny
DAN_K
  • EXPERT
  • 221 POSTS

The 3.1L is known for "piston slap". Here's a link to a video - see if it fits the description of your problem.

http://www.youtube.com/watch?v=C3KbJDMlZcc

The creator of the video calls this noise "normal". I'm not sure if I agree with that, but it is very common.

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Monday, September 26th, 2011 AT 6:08 PM
Tiny
PENNEY5631
  • MEMBER

The noise in the video is very similar. The tick is present all the time>How can the rpoblem be curred.

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Tuesday, September 27th, 2011 AT 12:52 AM
Tiny
DAN_K
  • EXPERT
  • 221 POSTS

If it is indeed piston slap, there are a couple of options that you could explore. One is replacing the engine. The second involved a lot of tear-down and machine work. However, I would only consider these options if you absolutely cannot live with the noise. Have a reputable mechanic check the car out - including a compression test - if he believes that the car is mechanically reliable, and you can live with the noise, try not to worry about it. There are many 3.1L engines that have been experiencing the same issue.

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Tuesday, September 27th, 2011 AT 10:36 AM
Tiny
PENNEY5631
  • MEMBER

I have another set of lifters that I getting put in. Is there anything that can be done while at this step of the teardown to see what the problem. If the second set of new lifters does not cure the problem, Can the tick cause any future problem

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Tuesday, September 27th, 2011 AT 2:22 PM
Tiny
DAN_K
  • EXPERT
  • 221 POSTS

If it is indeed piston slap, the lifters will not affect the noise. Piston slap will cause premature engine wear - specifically on both the cylinder bores and the pistons. This will eventually lead to oil consumption. With excessive piston ring to cylinder bore clearance, engine oil will enter the combustion chamber and be burned. Engine longetivity will be adversely affected.

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Tuesday, September 27th, 2011 AT 2:26 PM
Tiny
PENNEY5631
  • MEMBER

Tick has been there for about a year or more now. It still does not burn any oil and other than the tick runs great. If it was piston slap do you think that after a year or so of driving I would have noticed oil consumption or other problems.

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Tuesday, September 27th, 2011 AT 2:42 PM
Tiny
DAN_K
  • EXPERT
  • 221 POSTS

My neighbor owns a 1998 Buick Century with a very similar noise. Her's is not very loud and quiets down considerably when the engine reaches operating temperature. I've maintained the car for her for the past several years. It consumes less than a quart of oil every 3000 miles. She's learned to live with the noise and the car has over 100,000 miles. I wish I could give you a guarantee that your car won't suffer adverse effects from the noise, but I can't. All I can say is that this noise is a very common characteristic of this engine. Keep it maintained and listen for changes. If it gets worse, further investigation may be required.

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Tuesday, September 27th, 2011 AT 2:48 PM
Tiny
PENNEY5631
  • MEMBER

The noise quiets down a small bit when it heats up but not alot

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Tuesday, September 27th, 2011 AT 2:51 PM
Tiny
DAN_K
  • EXPERT
  • 221 POSTS

Keep driving it. If it's been happening for a year without adverse affects, I'd like to believe that it's just the piston slap noise that affects a great many of these engines. And like I said, keep an ear open to see if the noise changes or gets worse. Also be sure to check your oil regularly and pay attention to excessive oil consumption. Good luck - I hope you get many more miles of good service from the vehicle.

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Tuesday, September 27th, 2011 AT 2:55 PM
Tiny
WOLFENPIXELS
  • MEMBER

Its a common piston slap known in the engine. It doesnt hurt the motor its just annoying.

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Wednesday, September 28th, 2011 AT 11:15 PM

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