explorer engine swap
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New User
Joined: Dec 2005
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explorer engine swap
I'm swapping the 4.0 engine out of a '92 explorer(bad engine)with a '96 4.0(good engine). I've already changed the upper intake and wiring harness so the everything mates up when I drop it in. I found that the 92 has a low oil sensor on the side of the oil pan and the 96 does not. Since I'm using the 92 wiring harness, will the engine run without that sensor? Any input will be a great help.
Posting Guru
Joined: Jul 2003
Posts: 1,978
Likes: 1
From: Alvin, Texas.
Well,
Some EFI engines have the oil sender tied into the fuel pump. No oil pressure = no fuel pump workie!
You really need to check a schematic to be sure things will be okay.
You may end up having to add a crimp and longer wire to make this work. Who knows.
Some EFI engines have the oil sender tied into the fuel pump. No oil pressure = no fuel pump workie!
You really need to check a schematic to be sure things will be okay.
You may end up having to add a crimp and longer wire to make this work. Who knows.
Lead Driver
Joined: Feb 2003
Posts: 8,140
Likes: 4
From: Oak Harbor, OH
That sensor has nothing to do with oil pressure. It's just a level sender. It detects when you're a quart low and turns the dash light on. It will not effect the running of the vehicle. If it did they wouldn't be able to use it as the engine would shut off at a quart low, this could possibly cause a serious accident.
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
Hello- Welcome to FTE! I have moved your post to the specialized forum we have here for your question. Check out the list of tech forums we have here. There is a wealth of information and expertise here to help you. There are a number of links in my sig below to help you also. Have fun! 
Posting Guru
Joined: May 2002
Posts: 1,574
Likes: 1
From: Phoenix
The early 4.0's oil level switch is right on the oil pan and only goes to teh oil light on the dash. There is no tie in to the PCM or the fuel pump circuit. There is a seperate oile pressure switch that also runs only to the gage on the dash - no PCM or fuel pump circuit tie in.
