Gain extra benefits by becoming a Supporting Member Click here find out how!
Silver
Gold ***Platinum***
Carl1962 (2)briski1971 dfwwingnut CowboyTrukr (3)sz0k30 (6)
Suburbazine (2)Gunk(7)markl350 (6)roseyintxCutlass442 (10)Rager
Chevyfan60 (10)JohnE (12)cnbell (11)Todd M (11)savina64
LRH (3)61ohboy66conv55_FEVER george88gta (10)BillOrton39
68 Bel-AirNitroholic (10)
warpwr (8)Lynn63 (5)
Jim.Biron (7)
1956chevy (2)
BMF-1955
Classic Performance Products
Ciadella Interiors American Auto Wire Art Morrison.com
Hellwig Products Inc Performance Rod & Custom
Exile® Battery Keeper™ 6/12 volt charger w/ LED battery monitor
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy

  >> Switch to Mobile Version <<

Recent Hot Topics
Current Quote
"I am amazed by how knowledgeable and helpful folks on this forum are, and I am grateful for any help you may send my way."
~ Supporting Member
Recent Topics
WIN / WIN

Use this to search for parts on Ebay
A portion of your purchase will come back to the site.
Username Post: 02 Silverado knocking noise when warm        (Topic#116265)
whazzup 
Member
Posts: 4

Loc: California
Reg: 11-07-05
11-07-05 10:49 AM - Post#811553    

I get a knocking noise like its lifters when the engine is warm. I've tried a thicker oil but that didnt help. Took it to the dealer when it was under warranty but they didnt hear any noise. Seems to be loudest under the front wheel well on the driver's side. Motor seems to run fine though, noise is just annoying.

 
CaptainK 
Senior Member
Posts: 8242
CaptainK
Loc: Maryland
Reg: 02-25-02
Re: 02 Silverado knocking noise when warm
11-07-05 01:57 PM - Post#811554    
    In response to whazzup

Does the noise go away after driving for a bit?
'99 Silverado (NBS)


 
nodakbassmaster 
Super Senior Member
Posts: 4397
nodakbassmaster
Loc: Poorhouse, SD
Reg: 03-14-04
Re: 02 Silverado knocking noise when warm
11-07-05 07:03 PM - Post#811555    
    In response to whazzup

don't know what you have for mileage but try some Techron feul system cleaner or a seafoam treatment and that might help. Maybe seafoam first
Richard

'09 Silverado 3500HD CC LB D/A LTZ Z71, Mods Annonymous Member #3


 
whazzup 
Member
Posts: 4

Loc: California
Reg: 11-07-05
Re: 02 Silverado knocking noise when warm
11-07-05 08:51 PM - Post#811556    
    In response to nodakbassmaster

I have about 45k miles and the noise can only be heard while idling. Not sure if the noise stops when driving, can't hear over the road and engine noise. Its more of a clacking noise then knocking. Almost like valve clatter but I cant hear it very well from the hood, only off to the left front wheel well.
I'll have to try some of that foam stuff. What is it suppose to do?

 
nodakbassmaster 
Super Senior Member
Posts: 4397
nodakbassmaster
Loc: Poorhouse, SD
Reg: 03-14-04
Re: 02 Silverado knocking noise when warm
11-08-05 05:17 AM - Post#811557    
    In response to whazzup

it's a cleaner- suck 1/2 to 3/4 of a can in through a vacuum line (i use the brake booster line) just slow enough the engine doesn't die. Shut the truck off for 20 to 30 minutes and then crank it back up. It will smoke like hell for a little while but it helps clean carbon and junk out of your engine. It has helped people with similar noise before, and it's cheap and easy!
Richard

'09 Silverado 3500HD CC LB D/A LTZ Z71, Mods Annonymous Member #3


 
HDANDY 
Senior Member
Posts: 128

Loc: Nooksack WA
Reg: 03-05-04
Re: 02 Silverado knocking noise when warm
11-09-05 11:52 AM - Post#811558    
    In response to nodakbassmaster

Got yer problem to a tee,let me know if anything helps. I've had it while warm for about 30k but only at idle, or i should say when idling it goes away after 900 rpm or so. Did see a tsb quite a while ago that stated my exact symptoms but havent given it a go yet...

Engine Knock or Lifter Noise (Replace O-Ring) #02-06-01-038 - (12/02/2002)
Engine Knock or Lifter Noise (Replace O-Ring)
2001-2002 Chevrolet Camaro

2001-2003 Chevrolet Corvette

2001-2002 Pontiac Firebird

2002-2003 Cadillac Escalade, Escalade EXT

2000-2003 Chevrolet Suburban, Tahoe

2001-2003 Chevrolet Silverado

2002-2003 Chevrolet Avalanche

2000-2003 GMC Yukon, Yukon XL

2001-2003 GMC Sierra

with 4.8L, 5.3L, 5.7L or 6.0L V8 Engine (VINs V, T, Z, G, S, N, U -- RPOs LR4, LM7, L59, LS1, LS6, LQ9, LQ4)

Condition
Some customers may comment on an engine tick noise. The distinguishing characteristic of this condition is that it likely will have been present since new, and is typically noticed within the first 161-322 km (100-200 mi). The noise may often be diagnosed as a collapsed lifter. Additionally, the noise may be present at cold start and appear to diminish and then return as the engine warms to operating temperature. This noise is different from other noises that may begin to occur at 3219-4828 km (2000-3000 mi).

Cause
The O-ring seal between the oil pump screen and the oil pump may be cut, causing aeration of the oil.

Correction
Inspect the O-ring seal and replace as necessary. Use the applicable part number listed below. Refer to the Engine Mechanical sub-section of the appropriate Service Manual.

Parts Information
Part Number
Description
Qty

12557752
Seal-O/Pmp (O-ring)

(F and Y Cars)
1

12563963
Seal-O/Pmp (O-ring)

(C/K Trucks)
1


Parts are currently available from GMSPO.

Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Usage
Labor Time

J1060
Pickup Tube and Screen - Replace
F Car
3.7 hrs

Y Car
4.3 hrs

C Truck
1.3 hrs

K Truck
2.1 hrs
'07 D/Max Ally Crew Cab White SB Hijacker 16k usdp '06 Cougar 314 5er Bunkhouse


 
butch02denali 
Senior Member
Posts: 569
butch02denali
Loc: Middleton, MA
Reg: 04-14-03
Re: 02 Silverado knocking noise when warm
11-10-05 05:18 AM - Post#811559    
    In response to HDANDY

Another possibility could be the injectors. Some get pretty noisy when hot. More of a clicking sound, higher pitched than a lifter sound. (sounds are very difficult to describe with words!!!)LOL
Butch 02 Sierra Denali Wester's 91/93 Hot tune/Outlaw intake Custom Exhaust/Aeroforce Interceptor gauge


 
whazzup 
Member
Posts: 4

Loc: California
Reg: 11-07-05
Re: 02 Silverado knocking noise when warm
11-14-05 07:33 AM - Post#811560    
    In response to HDANDY

Great info guys! Thanks alot for the replies.
So if there is a service bulletin will the dealer repair my truck under warranty since I am out of warranty now?
Do you have the exact TSB number so I can reference it when calling the dealer?

 
HDANDY 
Senior Member
Posts: 128

Loc: Nooksack WA
Reg: 03-05-04
Re: 02 Silverado knocking noise when warm
11-14-05 07:55 AM - Post#811561    
    In response to whazzup

Engine Knock #01-06-01-022
Engine Knock #01-06-01-028
Engine Knock #01-06-01-028A
Cold Engine Tick #01-06-01-005
Engine Oil Consumption #01-06-01-011
Engine Oil Consumption #01-06-01-011A

Not Related
Engine Knock or Lifter Noise #02-06-01-038

Hope this helps, to my knowledge tsb's are an awareness recognized by gm that the consumer absorbs as a cost to them......... I guess the info is free. The last number #02-06-01-038 is the one I posted
'07 D/Max Ally Crew Cab White SB Hijacker 16k usdp '06 Cougar 314 5er Bunkhouse


 
hauler 
Member
Posts: 49
hauler
Loc: Europe
Reg: 11-11-05
Re: 02 Silverado knocking noise when warm
11-19-05 10:41 AM - Post#811562    
    In response to HDANDY

My truck has 100 000 & the same noise you describe, but I just ignore it.
77 C 30 custom deluxe LPG powered 87 1/2 Ton GMC fully loaded Y2K Silverado 1500 Whipple Supercharger Bigfoot 9.5 slide-in camper


 
NC_Redneck 
Senior Member
Posts: 623
NC_Redneck
Loc: Northern California
Reg: 07-09-04
Re: 02 Silverado knocking noise when warm
11-20-05 06:27 PM - Post#811563    
    In response to hauler

SEAFOAM!
2002 1500 Z71 Ext.Cab S.B. Victory Red 33in. Mud Terrain Tires Flowmaster Exhaust TrueFlow Cold Air Intake Kit Wester's Hot Tune 1970 El Camino


 
nodakbassmaster 
Super Senior Member
Posts: 4397
nodakbassmaster
Loc: Poorhouse, SD
Reg: 03-14-04
Re: 02 Silverado knocking noise when warm
11-20-05 06:49 PM - Post#811564    
    In response to NC_Redneck

that has gotten rid of some peoples and made others quieter
Richard

'09 Silverado 3500HD CC LB D/A LTZ Z71, Mods Annonymous Member #3


 
NC_Redneck 
Senior Member
Posts: 623
NC_Redneck
Loc: Northern California
Reg: 07-09-04
Re: 02 Silverado knocking noise when warm
11-20-05 07:07 PM - Post#811565    
    In response to nodakbassmaster

I swear by that stuff.
2002 1500 Z71 Ext.Cab S.B. Victory Red 33in. Mud Terrain Tires Flowmaster Exhaust TrueFlow Cold Air Intake Kit Wester's Hot Tune 1970 El Camino


 
HDANDY 
Senior Member
Posts: 128

Loc: Nooksack WA
Reg: 03-05-04
Re: 02 Silverado knocking noise when warm
11-20-05 07:29 PM - Post#811566    
    In response to NC_Redneck

definately da bomb....gotta do it alot though.You'd think that once it was done it would quiet up....guess all those times I passed f*rd's and Do*ges built up a little carbon huh...That is it dont take much.
'07 D/Max Ally Crew Cab White SB Hijacker 16k usdp '06 Cougar 314 5er Bunkhouse


 
nodakbassmaster 
Super Senior Member
Posts: 4397
nodakbassmaster
Loc: Poorhouse, SD
Reg: 03-14-04
Re: 02 Silverado knocking noise when warm
11-20-05 07:37 PM - Post#811567    
    In response to HDANDY

Richard

'09 Silverado 3500HD CC LB D/A LTZ Z71, Mods Annonymous Member #3


 
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

1721 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.113 seconds.   Total Queries: 13   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 06:57 AM
Top