4.8 cam swap wont start
#5
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Hold the pedal to the floor to clean it out. When the computer detects 100% throttle position during starting it cuts fuel to attempt to clear a flooded engine. See if it shows any signs of life then.
Ive done a ton of cam swaps and built a "few" ls motors and never had one not start.
Did it have any kind of tune put on it? Did you swap injectors?
Ive done a ton of cam swaps and built a "few" ls motors and never had one not start.
Did it have any kind of tune put on it? Did you swap injectors?
#6
12 Second Club
iTrader: (3)
Join Date: Aug 2003
Location: Palmview, Tx
Posts: 591
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I did a cam swap on my 4.8L using a 216/220 and it did the same. Once it started I had to just hold the throttle a bit so it would idle for a bit. After doing that a few times it idled fine on its own.