rattles sound when warming up

Reply Subscribe

Thread Tools

Search this Thread

Jul 8, 2010 | 01:02 AM

TUCKZ28SS

Thread Starter

TECH Regular

iTrader: (2)

Joined: Apr 2006

Posts: 462

Likes: 0

From: Lewiston, NY

rattles sound when warming up

i have a distinct rattle/vibration when the car first starts up and for about ten seconds after. Then when it settles into its idle it goes away. I was going to go nuts and take off the heat shields, but worried about the heat causing damage. Somebody at the local cruise suggested poly motor mounts to eliminate engine vibration. any ideas? sick of having a nice car sound like a hoopdy! i have a futral f14 cam, slp headers/y and dual dual

Jul 8, 2010 | 12:51 PM

conor.davis

TECH Apprentice

iTrader: (20)

Joined: Aug 2007

Posts: 381

Likes: 0

From: Des Moines, IA

hows clearance on headers and Y?

Jul 8, 2010 | 12:58 PM

99SSJarhead

TECH Enthusiast

iTrader: (2)

Joined: May 2010

Posts: 549

Likes: 1

From: Deloit IA

catted y or not?

Jul 8, 2010 | 10:24 PM

libertyforall1776

TECH Addict

iTrader: (2)

Joined: May 2007

Posts: 2,129

Likes: 5

From: IL

I have something similar -- I think it's the brakeline holders that no longer fit proper after adding Goodridge Stainless Steel braided soft lines... Will have to investigate it closer.

Also check belt tensioner bolts and alternator bolts...

Jul 9, 2010 | 01:35 AM

ls1whip

On The Tree

iTrader: (1)

Joined: Jun 2008

Posts: 100

Likes: 0

From: beaverton

i took off the pass heat shield and havnt had any problems with the floor getting to hot

Jul 9, 2010 | 10:41 AM

TUCKZ28SS

Thread Starter

TECH Regular

iTrader: (2)

Joined: Apr 2006

Posts: 462

Likes: 0

From: Lewiston, NY

would the motor mounts reduce the flexing of the exhaust pipes

Jul 9, 2010 | 11:13 AM

twitchtwice

12 Second Club

iTrader: (12)

Joined: May 2008

Posts: 2,612

Likes: 1

yes. poly mounts will reduce engine flexing which will in turn reduce your exhaust movement.

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Jul 9, 2010 | 06:30 PM

libertyforall1776

TECH Addict

iTrader: (2)

Joined: May 2007

Posts: 2,129

Likes: 5

From: IL

I noticed a lot more exhaust movement after having welded SFCs installed, and I think it bucks and hits the floorboard over bumps (unless its something else?) -- anyone else with the same experience?

Jul 9, 2010 | 06:37 PM

#10

confederatelt1

Teching In

Joined: Jul 2010

Posts: 48

Likes: 1

From: Ventura, Ca

i have a sort of similar problem too... but mine has been ever since a spinout on the freeway in the rain. when the car is cold no rattle noise. when its hot and in drive it ratles like a damn snake when im at a red light. it does the same thing when its in park too. BUT it doesnt rattle when im at the light in drive with my ebrake on. it kind of sounds like the driveshaft is out of balence from the wreck. anyone have an idea?