ENGINE INDENTIFICATION - Ranger-Forums - The Ultimate Ford Ranger Resource

4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

LinkBack Thread Tools Search this Thread
Old 03-15-2015
Thread Starter
Join Date: Mar 2015
Posts: 1

My grandson has a 1993 Ford Ranger 4X4 with a 4.0 V6 but the motor has been changed , the motor that is in it has a decal on the left valve cover with these numbers on it WK949AA. We are trying to determine what year it is as the cam sensor is not plugged in because it has a different type of pronged plug, any help would be appreciated on what year of motor we have.
Reply With Quote
Old 03-16-2015
RF Veteran
iTrader: (1)
Join Date: Jan 2014
Location: Vancouver, BC
Posts: 7,601
Ranger 4.0l OHV engine changed from a 3 wire Cam Sensor to a 2 wire Cam Sensor in '99.
The 4.0l OHV engine was used in Rangers from 1990 to 2000.
In 2001 Ranger got the 4.0l SOHC engine, SOHC engine is not related in anyway to the 4.0l OHV.

So your OHV engine could be a '99 or '00.

The 3 wire sensor and 2 wire sensor are different types of sensors so it is not just a matter of rewiring, you will need to get a 3 wire sensor so your '93 computer will understand the signal.
I think the Cam synchronizer(what the cam sensor sits on) is the same for either 2 or 3 wire so just the sensor can be changed.
But the Cam synchronizer's are known for bad bushings, so you may what to swap out both.

The cam sensor is used to fine tune the fuel injector timing and for advanced spark timing, engine will run without it but MPG and performance will improve with it working.

4.0l OHV engine looks like this: The Ford Ranger 4.0L Engine - The Ranger Station

4.0l SOHC looks like this: How To Replace the Upper and Lower Thermostat Housing on a Ford 4.0L V6 SOHC Engine

This may be helpful down the road if you need parts: http://www.therangerstation.com/tech...0rebuild.shtml
It gives the differences in the 1990 to 2000 4.0l OHV engines

Last edited by RonD; 03-16-2015 at 12:42 PM.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
1994 ranger/mazda differential indentification nantestom General Ford Ranger Discussion 1 05-18-2011 08:45 AM
The difference between a 2005 4.0L Mustang engine and a 2005 4.0L Ranger engine. BlackRanger04 4.0L OHV & SOHC V6 Tech 15 11-21-2010 05:56 AM
Engine Oil Problem Knocking *ENGINE GURU'S READ* Roach2004 2.9L & 3.0L V6 Tech 17 08-28-2010 11:20 AM
problem with engine and check engine light warner.325 SOHC - 2.3L & 2.5L Lima Engines 5 12-09-2009 04:48 AM
'95 2wd 4.0 5-speed engine and trans harness -vs- '97 4wd 4.0 engine and trans harnes lifted97ranger General Technical & Electrical 3 01-23-2008 12:48 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -6. The time now is 07:21 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.