PerformanceTrucks.net Forums

Notices
GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

Low compression in 3 holes!

Thread Tools
 
Search this Thread
 
Old 07-19-2017, 12:02 PM
  #11  
Custm2500's Rude Friend
iTrader: (17)
 
1FastBrick's Avatar
 
Join Date: Apr 2007
Location: JunkYard
Posts: 14,326
Received 761 Likes on 630 Posts
Default
Did you run any fuel injection cleaner through it?
1FastBrick is offline  
Reply Like
Old 07-19-2017, 12:15 PM
  #12  
Launching!
Thread Starter
 
Shtbox's Avatar
 
Join Date: Aug 2013
Posts: 211
Received 0 Likes on 0 Posts
Default
Originally Posted by 1FastBrick
Did you run any fuel injection cleaner through it?
no I didn't you think that will help?like sea foam or 44k?
Shtbox is offline  
Reply Like
Old 07-19-2017, 12:41 PM
  #13  
Custm2500's Rude Friend
iTrader: (17)
 
1FastBrick's Avatar
 
Join Date: Apr 2007
Location: JunkYard
Posts: 14,326
Received 761 Likes on 630 Posts
Default
wouldn't hurt... If it has alot of carbon deposits the valves might not be seating properly.

Over time it could clean it up and improve compression as you have seen.
1FastBrick is offline  
Reply Like
Old 07-20-2017, 09:03 AM
  #14  
Launching!
Thread Starter
 
Shtbox's Avatar
 
Join Date: Aug 2013
Posts: 211
Received 0 Likes on 0 Posts
Default
Originally Posted by 1FastBrick
wouldn't hurt... If it has alot of carbon deposits the valves might not be seating properly.

Over time it could clean it up and improve compression as you have seen.
ok I'll get a can of that 44k from work and sea foam thru the brake booster
Shtbox is offline  
Reply Like
Old 07-20-2017, 09:41 AM
  #15  
TECH Fanatic
iTrader: (1)
 
Mark Johnson's Avatar
 
Join Date: Mar 2007
Location: Santa Fe New Mexico
Posts: 1,723
Received 27 Likes on 25 Posts
Default
Take spark plugs out of all low holes, couple squirts of oil each low hole- reinstall plugs, retest compression. I'd say this should give ya a good idea where to go B4 tearing anything apart...............
Mark Johnson is offline  
Reply Like



Advanced Search

All times are GMT -5. The time now is 08:27 AM.