missing under load, backfires, popping
#21
Notorious BIG
Thread Starter
iTrader: (6)
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 1,744
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.performancetrucks.net/forums/images/icons/icon1.gif)
Well, leak down test this weekend and i'll go from there i guess. To get to the injectors will probably need to pull the blower off as they're a real pain to get at on the passenger side with the j-tube in the way. I'll probably send them to FIC to be cleaned/tested. While the blower is off, i guess i might as well pull the heads and check on the lifters too? Assuming that when i pull the valve covers nothing jumps out at me as being damaged or worn.
#26
TECH Apprentice
Join Date: Dec 2010
Location: canada
Posts: 326
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.performancetrucks.net/forums/images/icons/icon1.gif)
if your pulling heads just change the lifter while you are there i have seen so many issues with the lifters on your truck and the denalis simliar years an newer trucks. just change them with ls7 lifters and ls2 trays your there it only takes a minute and cheep insurance. i have seen lifters fail on that engine but usually it make tikking noise or missfire. it may be sluged up. put a 1l of trans fluid in it runit take it for a quick ride drain oil put new oil in and drive for a week see if it happens. it goes away bingo and change lifters anyway. realy nice ss silverado man.
#30
Notorious BIG
Thread Starter
iTrader: (6)
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 1,744
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.performancetrucks.net/forums/images/icons/icon1.gif)
if your pulling heads just change the lifter while you are there i have seen so many issues with the lifters on your truck and the denalis simliar years an newer trucks. just change them with ls7 lifters and ls2 trays your there it only takes a minute and cheep insurance. i have seen lifters fail on that engine but usually it make tikking noise or missfire. it may be sluged up. put a 1l of trans fluid in it runit take it for a quick ride drain oil put new oil in and drive for a week see if it happens. it goes away bingo and change lifters anyway. realy nice ss silverado man.