I have had to replace more than one at a time but usually only one will go out at a time unless you have a bunch of water or some other comtaminats in the fuel. and yes they will run on less than 7 cylinders. I have seen them come in running on 4 before because of bad or broken valve cover harnesses.99StrokerDude said:So it is impossible to have more than one bad injector at a time??
I also am curious as to why this is... Will the motor not run at all with more than one bad?
What if my IPR is constantly getting blown out ? My HPOP is chipping away ? Need new Hpop did injector that was bad only other problem is ICPRight, why did you take it in?
Generally injectors cannot cause low ICP issues, but can cause ICP leaks - specifically the injector o-rings. This shows as "black fuel". The o-ring kits are inexpensive and relatively easy to change.
A failing HPOP will cause hard starting when HOT and low power.
Excessively thick oil (too long between services) will cause "hunting", long crank times, and general driveability problems.
A bad IPR valve will cause long crank times HOT (rare situations cold too), low power, and hard/no start conditions. The sinister thing is a power problem to the IPR valve causes EXACTLY the same symptoms.