engine knock/piston slap??HELP

Chevy Forum Chevy Classifieds Photo Gallery Chevrolet News Search Contact CF Sponsors
Member List Forum FAQ Chevy Timeslips Chevy Recalls TSBs Calendars Register Login

engine knock/piston slap??HELP

Printable Version

Chevrolet Forums >> Chevy Trucks, Vans & SUV's >> Silverado >> engine knock/piston slap??HELP

Page: [1]

Message

<< Older Topic Newer Topic >>

engine knock/piston slap??HELP - 9/23/2007 2:27:04 PM

scoyoc5

Posts: 2
Joined: 9/23/2007
Status: offline

Hello all Im new to CF. I am lucky enough to have one of the 01 2500hd silverado's with the famous " piston slap" noise. I have tried the easy fixes that I have heard from friends.....The questions I have are of course is there any fix for this? If not. What about replacing the engine? What would be the cost of an engine replacment? As im sure with anyone else that has this problem it is driving me nuts..
Thanks
John V.
Washington St

< Message edited by scoyoc5 -- 9/23/2007 6:46:12 PM >

Post #: 1

RE: engine knock/piston slap??HELP - 9/29/2007 9:07:23 PM

melat70

Posts: 28
Joined: 8/8/2007
Status: offline

Hi Scoyoc5
What engine do you have, and how many miles on it? What kind of driving do you do? Any towing of heavy loads? Have you found out yet what is causing the slap, and have you fixed the problem? I think changing the engine would be uncalled for, and a very expensive fix unless you have several thousand dollars to spend . I have an 02 2500HD with the 8.1 engine and tow a 5th wheel with max allowed weight. I have about 88K miles on it and absolutely no problems with anything.

_____________________________

Mel

(in reply to scoyoc5)

Post #: 2

RE: engine knock/piston slap??HELP - 10/1/2007 8:39:53 AM

MalibuMaxxSS

Posts: 629
Joined: 11/18/2006
Status: offline

you could swap engines but the new one would prolly do the same over time....this is inherent of big block GM engines from 454, to the 8.1 and even the old 5.7....get used to it...sorry and my cost on a 350 crate engine for my jeep was around $2500 NOT COMPLETE.....a complete bolt in one was about 4000 if I remember, a 502 goes for around 9G this is canadian.....dont know where u are...but figure somewhre in there....plus re and re

< Message edited by MalibuMaxxSS -- 10/1/2007 8:42:32 AM >

_____________________________

2006 Malibu Maxx SS, computer Flashed, undercar LED, Cold air intake, 18' Potenzas, Limo tint front to back

1990 YJ Lifted Locked and always muddy, posi loc, 33s TSLs, weber carb. drop tailgate...

(in reply to melat70)

Post #: 3

RE: engine knock/piston slap??HELP - 10/2/2007 4:43:00 PM

scoyoc5

Posts: 2
Joined: 9/23/2007
Status: offline

Hey guys,
To answer some of your questions. I have the 6.0L with only 70,000 miles. I started hearing the noise somewhere around 55,000 if I remember right. I hate this noise! I do tow a 27' travel trailer. I love my silverado and have enough money into it that I want to fix it. 6" rcd lift 35" toyo's stone crusher weld wheels. Im just hoping to find that one fix that will solve this issue. Thanks for you respones
John

P.S. I live in Washington St.

(in reply to scoyoc5)

Post #: 4