Broken intake valve spring
Thread Starter
Drifting
Joined: Jan 2008
Posts: 1,250
Likes: 0
From: Michigan
Broken intake valve spring
Well guys i received the news that i have a broken intake valve spring on my 03 zo6.Heres the scenerio i was driving home from my cousins house and everything is all good all of a sudden my car sounds like its misfiring and tuff to keep running at an idle.No spirited driving at all.My first thought is the maf so i searched the forum gathered as much info as i could and removed the maf and cleaned correctly ,started up same thing running ruff wont idle.I have the extended warranty on my car so in the dealership it goes ,received the call today that i have a broken valve spring.My question is ,isnt this odd for a stock zo6 im running a vararam cai and a catback,i have read that this usually happens to h/c vehicles ? is there any questions i should ask the dealer to look into, or should i have any other concerns Thanks 
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
Well guys i received the news that i have a broken intake valve spring on my 03 zo6.Heres the scenerio i was driving home from my cousins house and everything is all good all of a sudden my car sounds like its misfiring and tuff to keep running at an idle.No spirited driving at all.My first thought is the maf so i searched the forum gathered as much info as i could and removed the maf and cleaned correctly ,started up same thing running ruff wont idle.I have the extended warranty on my car so in the dealership it goes ,received the call today that i have a broken valve spring.My question is ,isnt this odd for a stock zo6 im running a vararam cai and a catback,i have read that this usually happens to h/c vehicles ? is there any questions i should ask the dealer to look into, or should i have any other concerns Thanks
Melting Slicks
Joined: Jan 2002
Posts: 2,754
Likes: 0
From: Nokomis FL
Same thing about 2 years ago. Chevy tech told me it was a common issue with the older C5's, pre 2002. When they pulled my covers off I had 2 broken and 2 cracked ready to go. They replaced the whole set with the "new" springs. This is (still) my DD albeit I have hit the rev limiter on occasion.
Thread Starter
Drifting
Joined: Jan 2008
Posts: 1,250
Likes: 0
From: Michigan
Same thing about 2 years ago. Chevy tech told me it was a common issue with the older C5's, pre 2002. When they pulled my covers off I had 2 broken and 2 cracked ready to go. They replaced the whole set with the "new" springs. This is (still) my DD albeit I have hit the rev limiter on occasion.
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Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Apparently LS1s have had occurrences also .... see post #8 (in 1998 there was no Z06/LS6 engine around) and #4 (Old Rotor Head's profile say he has a 1999 coupe, which is LS1).
Last edited by ZeeOSix; Oct 4, 2008 at 02:18 AM.
Drifting
Joined: Sep 2005
Posts: 1,258
Likes: 0
From: Home Southern Maine
St. Jude Donor '08
Mine Broke on my H/C setup...
Odd mine would drive and idle fine. only indicators I had was some KR under slight load and at WOT it would feel like it was misfiring (but not throw a code). They were dual springs, the inner and outter broke on #2
Odd mine would drive and idle fine. only indicators I had was some KR under slight load and at WOT it would feel like it was misfiring (but not throw a code). They were dual springs, the inner and outter broke on #2
