Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

compression drop

Thread Tools
 
Search this Thread
 
Old 06-21-2005, 06:41 PM
  #1  
TECH Addict
Thread Starter
iTrader: (77)
 
98RedBird's Avatar
 
Join Date: May 2005
Location: Peoria, IL
Posts: 2,772
Received 3 Likes on 3 Posts

Default compression drop

what are the typical signs of a loss of compression in a 98 T/A?? I know it's a pain to check, especially on the rear plugs. thanks
Old 06-21-2005, 08:13 PM
  #2  
TECH Resident
 
Adrenaline_Z's Avatar
 
Join Date: Dec 2004
Location: K-W, Ontario
Posts: 845
Likes: 0
Received 0 Likes on 0 Posts

Default

I read that wrong again:

Loss of power across the band

Rough idle/engine shake (if one or more cylinders are extremely low)

Oil breakdown (fuel in oil, blow-by), check under valve covers as well.

Lower than normal vacuum signal

Exhaust emitting blue, grayish smoke

Look for:

Ring wear

Cylinder taper

Weak/broken valve spring(s)

Head gasket leak

Valve sealing (seat wear, carbon build-up on back of valve)

Valve timing (cam selection)

Loose spark plug

Last edited by Adrenaline_Z; 06-21-2005 at 08:23 PM.




All times are GMT -5. The time now is 02:45 PM.