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HELP! 93 Ranger Owner Here....


Seigar

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Hello! My 93 Ranger's engine went out, but I have found one from a 99 Ranger...will it be compatible?
 


rusty ol ranger

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Hello! My 93 Ranger's engine went out, but I have found one from a 99 Ranger...will it be compatible?
What engine is in your 93? And which one is in the 99?
 

Seigar

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The 93 is a v-6 and the 99 is a 4-cylinder!
 

rusty ol ranger

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Seigar

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Ugh! I just hate to see the Ranger go, I need to find an engine.
 

ericbphoto

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Wellford, SC
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1993
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3.0 V6
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3.0L
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The longer answer is;

To change from the 6 cylinder to the 4 cylinder, is a pretty huge undertaking. You will most likely need to swap the transmissions also since the bellhousing bolt patterns are different between many if them. Then there is wiring. Your 93 uses an older computer technology OBD1 and the 99 will use newer OBD2 technology. The 99 probably also has PATS, a security system requiring keys that are mated to the ECU. The instrument clusters are also very different. I'm pretty sure thev99 uses the newer microprocessor controlled gage cluster. So wiring and interfaces to sensors and the ecu are very different.

So, can it be done? Sure. But you are better off in hundreds of ways by finding an engine that is much more similar to what you have now, preferably the same size 6 cylinder (4.0liter or 3.0liter?) From a 93, 94, 95 or 96 model year. I might be wrong about 96. I'm not sure of the exact time the ecus changed to OBD2.
 

Bgunner

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The longer answer is;

To change from the 6 cylinder to the 4 cylinder, is a pretty huge undertaking. You will most likely need to swap the transmissions also since the bellhousing bolt patterns are different between many if them. Then there is wiring. Your 93 uses an older computer technology OBD1 and the 99 will use newer OBD2 technology. The 99 probably also has PATS, a security system requiring keys that are mated to the ECU. The instrument clusters are also very different. I'm pretty sure thev99 uses the newer microprocessor controlled gage cluster. So wiring and interfaces to sensors and the ecu are very different.

So, can it be done? Sure. But you are better off in hundreds of ways by finding an engine that is much more similar to what you have now, preferably the same size 6 cylinder (4.0liter or 3.0liter?) From a 93, 94, 95 or 96 model year. I might be wrong about 96. I'm not sure of the exact time the ecus changed to OBD2.
Actually the 93 and 94 3.0's use a distributor and the 95 and 96's use the DIS (Distributorless Ignition System) so you need swap some things around between the motors. The motors are not just a simple bolt in but the items are not hard to swap items. Just something to watch for if you have the 3.0L.

Some 95's 3.0's got the OBD2 system but am unsure if all got them or if it was a half year type of thing. Since the swap to DIS happened that year it is more likely that all got the OBD2 ECU's.
 
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rusty ol ranger

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Engine Size
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2WD
My credo
A legend to the old man, a hero to the child...

97RangerXLT

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for engine swap ease and reliability.... get the same size/ displacement/ type, and only go 2 or 3 years either side of the one it is replacing, ideally if you can get the same year do so. some catches to that statement: 95 and 96 is when the Ranger went to OBD2 diagnostic system, so you want an engine that matches your computer type (OBD2 vs EEC) so for your case you would want no newer than a 94 3.0 if possible. also Ford in their infinite wisdom made the bell housing pattern different for each size engine, with the exception of the 2.9 and 4.0 which share the same bell housing pattern. so a 4.0 will not bolt up to a 3.0 transmission. There are also 2 different 4.0's which share the same bell housing but are completely different. pre 2001 the 4.0 was the OHV version, and after 2001 it is a SOHC version.

as for crossing the OBD2/ EEC barrier, this can be done but you will need to swap out all of the intake and probably valve covers and oil pan and any sensors from your old engine. As mentioned the 3.0 went to DIS in 95 as well... so that is a consideration, I am not sure if the newer engines can be adapted to run a distributor.

Also as mentioned post 1999 PATS was introduced, and your truck again would need a non PATS engine which would involve all of the sensors/ intake etc to be reused from your vehicle, and if you have another 1999 you still need to use your existing PATS system instead of the donor truck...

Hope this all helps, but the TL;DR version, get a 91-94 3.0 and prepare to swap intakes to make it work.

AJ
 

Bgunner

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Tire Size
225/70/R15
My credo
If it's not broken Don't Fix It!
The 95 and newer 3.0 engine uses a sensor mounted to a lower half of a distributor so they can be easily swapped between DIS and distributor ignition. This Lower half is called a cam sensor that allows the OBD2 style ecu know where the cam is positioned along with there being a crank shaft sensor mounted to the timing cover.

These are the major sensor differences between 94 and 95 3.0 engines. The timing cover can stay and so can the valve covers. The single coil bracket needs to be swapped over from 93-94 to 95 and later motor. This uses an upper intake bolt with a threaded shaft to hold the older one down so you may have to swap these bolts only over. Torque intake bolts to 7 ft lbs. Oil pan is the same so no need to mess with that unless you are getting a 3.0 out of say a Ford Taurus/ Mercury Sable then intakes and oil pans need swapping.

For ease of install and keep down extra cost of gaskets and such stick to 94-96. In 94 the cam and lifters got changed to rollers so added H.P. although not a big jump. Info on this is located in the tech section if you want to do some light reading up on it.
 
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