4.0 OHC Engine swap sensor issues
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5th Gear
Joined: Apr 2025
Posts: 5
Likes: 2
4.0 OHC Engine swap sensor issues
Upfront:
- good engine from 1995 Ford ranger with 4.0 and manual tranny
- 1999 Ford ranger with 4.0 ohc and auto tranny with bad engine
Fleet Mechanic
Joined: Jun 2023
Posts: 1,360
Likes: 377
From: WA
Not clear what you mean by different. Looks like 1999 used either a two pin or a three pin sensor. 1995 used only the three pin. If your 99 uses a three pin then you might be able to just buy a 1995 three pin sensor and synchronizer. Might have to swap some wires if the connector is different. What happened to the one that was in the 95 engine?
If your 99 used a two pin you might have some problems. Looks like the design is very different.
When you're posting about it make sure you distinguish between the sensor, where the wires attach, and the synchronizer, which is the mechanical part. Good luck.
Browse Rockauto. https://www.rockauto.com/en/catalog/...hronizer,10722
If your 99 used a two pin you might have some problems. Looks like the design is very different.
When you're posting about it make sure you distinguish between the sensor, where the wires attach, and the synchronizer, which is the mechanical part. Good luck.
Browse Rockauto. https://www.rockauto.com/en/catalog/...hronizer,10722
Fleet Mechanic
Joined: Jun 2023
Posts: 1,360
Likes: 377
From: WA
If it was mine I'd check oil the gear engagement and the insertion of the drive quill. If those are good and it's only sitting up by a small amount it might be fine. A shim might work to get proper clamping force.
It would be best to have the old one to compare to though. You don't want to mess up the drive gear on the camshaft. It runs the oil pump too.
It would be best to have the old one to compare to though. You don't want to mess up the drive gear on the camshaft. It runs the oil pump too.
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5th Gear
Joined: Apr 2025
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Likes: 2
So
I figured out what was going on and want to get an opinion.
The issue is the end of the unit from the 1999 engine was an 1/8 of an inch longer than the 1995 one measured from the gear to the end where the oil pump drive shaft is inserted. I used a drimmel and cut an 1/8 inch off the end and it sits flush on the block as expected. The oil pump drive shaft still sits in the shaft fully completely engaging the gear.
Any thoughts? I believe I will try it and see how it works. If oil pressure is not as expected on my mechanical gauge I will have to come up with something else.
The issue is the end of the unit from the 1999 engine was an 1/8 of an inch longer than the 1995 one measured from the gear to the end where the oil pump drive shaft is inserted. I used a drimmel and cut an 1/8 inch off the end and it sits flush on the block as expected. The oil pump drive shaft still sits in the shaft fully completely engaging the gear.
Any thoughts? I believe I will try it and see how it works. If oil pressure is not as expected on my mechanical gauge I will have to come up with something else.
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wildstang
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