Possible bad injector.
Thread Starter
|
New User
Joined: Feb 2014
Posts: 2
Likes: 0
Possible bad injector.
Hey everyone, new to this site, and I thought I would start off with a question. I have a 96 3/4 ton with a 7.3 and 200000 miles. I recently replaced the infamous injector wiring harness including the pigtails that plug into the valve cover gaskets. I also replaced the glow plug relay while I was at it. Now upon firing I am only running on what seems to be 7 cylinders, and there is oil in my fuel bowl and on my fuel filter. My guess is it could be a bad injector? I still want to pull the valve cover off and see if I may have missed a plug or something. Is there a way to pull the injector out and bench test it? Is there anyway an injector can get clogged? Any other ideas on why I don't have the cylinder firing? Oh I should also say it sat for 6 months prior to me trying to get it going. Ps. I know this has probably been covered but I'm mobile only right now and the search feature couldn't seem to find what I wanted.
Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
Welcome to FTE !
If you have oil in the fuel bowl then you have bad injector orings.
You can't diy bench test these injectors.
Pull the valve cover and unplug A injector then start the truck if it makes a difference in the way it runs shut it off plug it back in a do another.
Keep repeating till you find the one that makes no difference
If you have oil in the fuel bowl then you have bad injector orings.
You can't diy bench test these injectors.
Pull the valve cover and unplug A injector then start the truck if it makes a difference in the way it runs shut it off plug it back in a do another.
Keep repeating till you find the one that makes no difference
Thread Starter
|
New User
Joined: Feb 2014
Posts: 2
Likes: 0
Ok cool, thanks for the welcome! Yeah, I think I have it narrowed down to one of the two in the back on the passenger side. I have heard a few different locals say you can rebuild injectors, so does a bad oring constitute a possible rebuild? The wallet is a little thin right now, and the cost of a new injector doesn't sound so good.
Elder User
Joined: May 2010
Posts: 970
Likes: 0
From: Northeast Ohio
If you have a temp gun hit the ports on the exhaust manifolds the cold one is the one that's not firing. Or if the engine is cold use your hands and feel them on start up the cold one is the one that's not firing
Thread
Thread Starter
Forum
Replies
Last Post
Bubba Jones
1994.5 - 1997 7.3L Power Stroke Diesel
24
May 21, 2016 08:11 PM
fixitman1310
1994.5 - 1997 7.3L Power Stroke Diesel
4
Apr 15, 2010 07:43 PM
MarkSullivan
1994.5 - 1997 7.3L Power Stroke Diesel
4
Dec 4, 2009 09:02 PM
