Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

Recommended Posts

Had dreaded lifter tick. Replaced all lifters. New head gaskets, intake gaskets , coils, wires, plugs. Adjusted rockers to 22 ft. Lbs. By the manual. Torqued heads by the book. Using torque angle gauge.  Got it together. Runs rough. Any ideas?

Link to comment
Share on other sites

are you throwing any codes?  Have you drove it at all?  A few suggestions is check your plugs for fouling.  Doing the front easy to get to ones will be good enough to check.  Also make sure all of your injectors are seated straight and plugged in. 

Link to comment
Share on other sites

Does it idle ok then run rough under throttle? Cuz that what mine has started doing after a very similar rebuild, except mine was driving for around 1000 miles before it started this and also i fitted a new stg 1 cam at the rebuild.

Link to comment
Share on other sites

Have pulled valve covers since.It runs good for a second at start up then starts running bad. With valve covers off. #1, 4, and 6 rockers aren't moving. They move when I'm turning over by hand. It's a new vlom.?????

Link to comment
Share on other sites

It ran good before. Just had the lifter noise. It was only one lifter on #1 cylinder that failed. I've done mechanic work for 25 years until my health failed. But haven't worked on this particular problem. Have worked mostly on 60's-90's cars and trucks.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.