how to test injectors?
Senior User
Joined: Aug 2005
Posts: 123
Likes: 0
Originally Posted by Geoff Brown
I tried this on my truck this weekend. All of the cylinders were within 1 or 2 degrees of each other except one, which was 10 degrees low. Is that enough to say its bad? It was the front passenger side port. Which cylinder is that? Does a bad injector tick like a lifter noise?
New User
Joined: Mar 2003
Posts: 12
Likes: 0
Recently, I had my truck in with a problem which was causing my engine to lose power monentarily. It ended up being the Cam sensor, but during thier diagnostics they encountered some performance issues with the #8 fuel injector. It was not enough of an issue to recommend replacing the injector, but they referenced a Ford bulletin which spoke of problems with the #8 injector. Not having any supporting reason to replace the injector I said no, but I am curious if anyone has heard of such a bulletin. If not, maybe I can find out where they got thier information.
Postmaster
Joined: Nov 2003
Posts: 3,595
Likes: 0
From: Utah County, UT
I believe #8 fires after #6 on the same oil rail, so it usually fires at a bit lower rail and fuel pressure. Getting a HPX line will help and eliminating the air from the fuel system will definately quiet the engine down. But I have heard of more problems with #8 than any other injector, this might be why
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Originally Posted by Bradley Rieke
Recently, I had my truck in with a problem which was causing my engine to lose power monentarily. It ended up being the Cam sensor, but during thier diagnostics they encountered some performance issues with the #8 fuel injector. It was not enough of an issue to recommend replacing the injector, but they referenced a Ford bulletin which spoke of problems with the #8 injector. Not having any supporting reason to replace the injector I said no, but I am curious if anyone has heard of such a bulletin. If not, maybe I can find out where they got thier information.
also it will be help to the forum if you file out the signature section with the vitals of your truck (ie the year, model, drivetrain, engine mileage and other doodads you may have added.
Thread
Thread Starter
Forum
Replies
Last Post
