My truck is pending surgery. All 8 injectors are going to be replaced. As soon as I come up with the money for the new injectors.
Cylinders 1,3,4 fail contribution test when cold. Truck is missing, surging, running rough, and some times stalls when engine is cold. Hard starting when cold even in the 60 degree weather I have been having this week.
When the truck does finally start up it blows big clouds of white smoke out the exhaust and you can smell the raw fuel in it.
So it is time for new injectors. I am not going to do the ones that are bad. I am doing them all. 215,000 miles on them.