LS2 Engine Squeal

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Feb 25, 2009 | 11:40 AM

Naeblis

Thread Starter

Racer

Joined: Jul 2008

Posts: 473

Likes: 0

From: Folsom CA

LS2 Engine Squeal

2005 60k miles

Last night my engine started to make a loud noise while I was driving down the highway. When i got home I was able confirm it was the belt. today it went away. So i have a couple of questions

1) what is the normal operating temp of the engine
2) what is the normal life span of the Belt
3) do the Non-gmpp, extended warranties that you get form the dealer cover belts, I don't think so. But I think it might have killed the water pump. Since the engine is operating at less than 200 degrees now.

Feb 25, 2009 | 12:24 PM

knkali

Melting Slicks

Joined: Jun 2006

Posts: 2,690

Likes: 1

From: Northern Calif

a bad water pump would caudr INCREASE in temps.

normal op temp is around 200-210

Feb 25, 2009 | 12:39 PM

Naeblis

Thread Starter

Racer

Joined: Jul 2008

Posts: 473

Likes: 0

From: Folsom CA

Quote:

Originally Posted by knkali

a bad water pump would caudr INCREASE in temps.

normal op temp is around 200-210

Ok thank you for that.

Thom

Feb 25, 2009 | 12:49 PM

dbradley

Pro

Joined: Nov 2005

Posts: 672

Likes: 1

From: Sapulpa Oklahoma

Don't know your mechanical skills so, either check or have checked. Remove belt and check ALL rotating assemblies for roughness or "loose" pulleys. While off look the belt over for cracks. At 60k miles it is possible that you need a belt, maybe idlers....

Feb 25, 2009 | 01:39 PM

c6 batmobile

Safety Car

Joined: Jan 2008

Posts: 4,711

Likes: 3

From: Middle of No where AK

Could be a tensioner or the pulley that routes the belt down.

Feb 25, 2009 | 06:30 PM

85Z514+3

Pro

Joined: Jun 2005

Posts: 597

Likes: 43

From: Massillon OH

You may want to confirm that you do not have a problem with your harmonic balancer that affected some 2005's. There is a TSB for this problem and plenty of posts on the forum.

Feb 26, 2009 | 06:09 PM

jam313

Instructor

Joined: May 2008

Posts: 130

Likes: 0

From: Austin TX

Quote:

Originally Posted by 85Z514+3

You may want to confirm that you do not have a problem with your harmonic balancer that affected some 2005's. There is a TSB for this problem and plenty of posts on the forum.

This.

I had the same type of noise, and when I got home, popped the hood, grabbed the crank pulley bolt (harmonic balancer) and it was less than hand tight.