Need some help.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Correct. Basically checking for a broken wire. You might also want to check each wire to ground for a short/chafe.
Hotshot
Joined: Apr 2010
Posts: 19,055
Likes: 235
From: Saratoga Springs,UT
Well this Isnt Good
That Means OIL in the Coolant
Iv always Found on my gassers Coolant seeps into the Oil and does that, But your sounds the othere Way around
Hows was OIL Leval Today??
You may need a OIL Cooler IDK
Can you post a Pic
Thread Starter
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Junior User
Joined: Aug 2010
Posts: 53
Likes: 0
So if two of the pins going to the #1 injector are going to ground then that means the injector needs to be replaced or can the coils alone be replaced?
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Fleet Mechanic
Joined: Aug 2012
Posts: 1,760
Likes: 21
Can you get at #3 and compare?
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Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Are you checking the harness or the injector plug where it goes through the rocker box? There are one red and one blue wire that go to one coil and one black and one white wire that go to the other coil. None should be grounded.
Thread Starter
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Junior User
Joined: Aug 2010
Posts: 53
Likes: 0
I'm checking the injector plug going into the top of the motor just inboard of the valve cover. I didn't note the wire colors. There are 4 pins sticking up when the harness connector was removed. My thoughts were the back two pins were one coil and the front two were another coil. I have no connection from a back pin to a front pin.
Thread Starter
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Junior User
Joined: Aug 2010
Posts: 53
Likes: 0
Ok, just check the connector for #5 (#3 was under a bunch of stuff). No pins were connected to ground. The back pins read 0.7 ohm and the front pins 0.7 ohm. So if that is a believed to be good injector and coils, then I'm thinking #1 coil and/or injector is bad, grounded on the rear pins?
Agree/disagree??
Also, the last oil was 15/40. Doesn't show the brand. I just know it wasn't rotella.
Agree/disagree??
Also, the last oil was 15/40. Doesn't show the brand. I just know it wasn't rotella.
Fleet Mechanic
Joined: Aug 2012
Posts: 1,760
Likes: 21
The oil:
As long as it was CJ4 rated then it's ok. Most 15-w40 oils are diesel rated oils.
The Injector:
At this point I would pull the valve cover. I would be double checking that injector (ohm reading) every step of the way to see at what point it is not grounded.
The HPO rail can be tricky to remove on that side if you get that far. There are 2 bolts that are difficult to access due to the heater/AC box.
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As long as it was CJ4 rated then it's ok. Most 15-w40 oils are diesel rated oils.
The Injector:
At this point I would pull the valve cover. I would be double checking that injector (ohm reading) every step of the way to see at what point it is not grounded.
The HPO rail can be tricky to remove on that side if you get that far. There are 2 bolts that are difficult to access due to the heater/AC box.
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