I have a 2000 F-150 V8 4.6L that has around 150k. I want to replace the fuel injectors, and after much research I found the original motorcraft ones are discontinued. I read up on other motorcraft injectors and they seem to get iffy reviews. I would like to know what people are putting in their trucks, and whats a good injector to use. Thanks

 

First what is the basis of replacing yours?
There have been some changes over the years to improve the spray pattern and solve some internal issues..
Any 19 lb injector with the correct electrical socket and fitment will work fine.
My injectors are the originals from 2002 with 304k miles.
Good luck.

 

@Bluegrass- I was going to change them thinking it was part of the maintenance. The motor is running fine, I just want to do a full service on it to ensure it keeps running well.

 

In my opinion, in this case if it ain't broke don't try to fix it.
Unless you are having drivability issues there is no need to pull the fuel rail. The only thing you might want to do one of these decades if you have it off anyway is to change the O-rings. Otherwise leave it alone.

 

If there is no verifiable reason to change them (usually all 8 never develop an issue) leave them alone unless you have money and time to waist.
Plugs and coils will have much more likelihood of developing faults then injectors.
Plugs' erode the tips, coils get heat expansion and contraction in their windings that cause shorts, injectors just keep opening and closing.
Only thing you can do for them is run some cleaner in the fuel once in awhile. Even then you may not see any difference unless you were to take controlled power reading before the change and after and account for temperature and barometric differences during each test times under the same conditions.
You would be better off changing the Ox sensors than the injectors as it would have an effect on fuel mileage you might detect over several tanks of fuel running over the same route repeatedly on a before and after test..
You can't detect such small performance changes from a good running fault free engine by the seat of the pants detection.
It takes at least a large enough change in torque to produce a10 horse power increase to feel a difference.
Changing parts without cause is much like how one feels after washing the vehicle and polishing it. No real difference in how it runs but in the mind.
I only offer you a worthwhile perspective on this.
Do whatever makes you feel good. That's important also.
Good luck.