2003 3.0 5 speed purchase
#1
2003 3.0 5 speed purchase
looking at this truck, it's the edge package, real clean. has 150K on it and barely any rust, very well taken care of it appears. anything particular to look for on these engines, I've always had the 4 cylinders but this is such a clean truck I figured why not try it. haven't bought it yet, just doin some research on what to look for on these engines as "common issues"...
#2
RF Veteran
iTrader: (1)
2004 to 2006 Ranger 3.0l engines did have a TSB for Recess Exhaust valve seat issue
2003 could also, no way to tell until it starts to give you problems
Have to replace both heads if it happens, so not a cheap fix
TSB didn't specify 2003, and it wasn't 100% of the 2004s to 2006s 3.0l Ranger that had the problem either, just some and no way to predict which ones
Other than that the 3.0l Vulcan engines were used from 1986 to 2008, so literally MILLIONS of them are out there still running strong, good reliable engine.
It is a high RPM engine, best torque at 3,500RPM
So if you drive it like a 4cly, best torque at 2,500RPM, then it will feel gutless
2003 could also, no way to tell until it starts to give you problems
Have to replace both heads if it happens, so not a cheap fix
TSB didn't specify 2003, and it wasn't 100% of the 2004s to 2006s 3.0l Ranger that had the problem either, just some and no way to predict which ones
Other than that the 3.0l Vulcan engines were used from 1986 to 2008, so literally MILLIONS of them are out there still running strong, good reliable engine.
It is a high RPM engine, best torque at 3,500RPM
So if you drive it like a 4cly, best torque at 2,500RPM, then it will feel gutless
#3
#5
RF Veteran
iTrader: (1)
Yes, the 3.0l Cam Synchronizer should be replaced every 80k miles or so, they will make a high pitch squealing noise if bushing starts to fail, which was the problem
No, never heard of synchronizer "breaking" and oil pump shutting down, yes it does drive the oil pump, same as distributors did on all vehicles that used them, can't even remember that happening with a distributor, I am sure it did just an extreme long shot.
More likely would be road debris punching a hole in oil pan or oil drain plug coming loose, as far as engine damage from loss of oil
No, never heard of synchronizer "breaking" and oil pump shutting down, yes it does drive the oil pump, same as distributors did on all vehicles that used them, can't even remember that happening with a distributor, I am sure it did just an extreme long shot.
More likely would be road debris punching a hole in oil pan or oil drain plug coming loose, as far as engine damage from loss of oil
#6
Yes, the 3.0l Cam Synchronizer should be replaced every 80k miles or so, they will make a high pitch squealing noise if bushing starts to fail, which was the problem
No, never heard of synchronizer "breaking" and oil pump shutting down, yes it does drive the oil pump, same as distributors did on all vehicles that used them, can't even remember that happening with a distributor, I am sure it did just an extreme long shot.
More likely would be road debris punching a hole in oil pan or oil drain plug coming loose, as far as engine damage from loss of oil
No, never heard of synchronizer "breaking" and oil pump shutting down, yes it does drive the oil pump, same as distributors did on all vehicles that used them, can't even remember that happening with a distributor, I am sure it did just an extreme long shot.
More likely would be road debris punching a hole in oil pan or oil drain plug coming loose, as far as engine damage from loss of oil
#7
RF Veteran
iTrader: (1)
#8
#9
In severe cases (sometimes no noise) the worn bushing allows the shaft to wobble where the "tooth" that passes in front of the sensor, comes in contact with it.
It's not that difficult to remove the sensor and inspect the shaft for wear.
Don't let this little problem stop you from buying the truck.
It's not that difficult to remove the sensor and inspect the shaft for wear.
Don't let this little problem stop you from buying the truck.
#11
RF Veteran
iTrader: (1)
Bushings, not bearings, soft metal sleeves between shaft and housing.
Funny thing is the whole assembly uses the exact same bushings, shaft and housing as the 3.0l's distributor did(1986 to 1994), and it was NEVER a problem
Even Ford was puzzled by this, and it was never "fixed" as far as I know, or new ones wouldn't wear out.
Could be the heavier upper spinning mass in a distributor made shaft more stable, less ability to wobble and wear out a bushing, but just a theory
Yes, owners choice.
If it worries you then change it, not that expensive or hard to do
Funny thing is the whole assembly uses the exact same bushings, shaft and housing as the 3.0l's distributor did(1986 to 1994), and it was NEVER a problem
Even Ford was puzzled by this, and it was never "fixed" as far as I know, or new ones wouldn't wear out.
Could be the heavier upper spinning mass in a distributor made shaft more stable, less ability to wobble and wear out a bushing, but just a theory
Yes, owners choice.
If it worries you then change it, not that expensive or hard to do
#13
When it comes to the synchronizer itself, get the Ford Motorcraft one.
Other after market brands only seem to last about a year.
Inspect your old one, take the sensor off (leave it connected, it's kind of difficult to unplug when it's still bolted to the synchronizer)
If there is no play (a little is normal) then leave it alone.
Mine is good shape, someone replaced it some time ago, but I don't know when.
I squirt some Tri-flow in there depending on how much I drive the truck.
I use a long (1 Foot) 3/8 extension with a 1/4 inch adapter and a UV joint with a small 1/4 socket to get at it.
Once you get the knack down, it's pretty easy to remove the sensor.
The screen shot shows the metal DPFE sensor, yours is a 2003, so it might not be the same as my 1999, but probably is.
If you still have the metal one, then consider replacing it with the solid state plastic one.
Other after market brands only seem to last about a year.
Inspect your old one, take the sensor off (leave it connected, it's kind of difficult to unplug when it's still bolted to the synchronizer)
If there is no play (a little is normal) then leave it alone.
Mine is good shape, someone replaced it some time ago, but I don't know when.
I squirt some Tri-flow in there depending on how much I drive the truck.
I use a long (1 Foot) 3/8 extension with a 1/4 inch adapter and a UV joint with a small 1/4 socket to get at it.
Once you get the knack down, it's pretty easy to remove the sensor.
The screen shot shows the metal DPFE sensor, yours is a 2003, so it might not be the same as my 1999, but probably is.
If you still have the metal one, then consider replacing it with the solid state plastic one.
Last edited by Jeff R 1; 05-31-2017 at 08:43 PM.
#14
When it comes to the synchronizer itself, get the Ford Motorcraft one.
Other after market brands only seem to last about a year.
Inspect your old one, take the sensor off (leave it connected, it's kind of difficult to unplug when it's still bolted to the synchronizer)
If there is no play (a little is normal) then leave it alone.
Mine is good shape, someone replaced it some time ago, but I don't know when.
I squirt some Tri-flow in there depending on how much I drive the truck.
I use a long (1 Foot) 3/8 extension with a 1/4 inch adapter and a UV joint with a small 1/4 socket to get at it.
Once you get the knack down, it's pretty easy to remove the sensor.
The screen shot shows the metal DPFE sensor, yours is a 2003, so it might not be the same as my 1999, but probably is.
If you still have the metal one, then consider replacing it with the solid state plastic one.
Other after market brands only seem to last about a year.
Inspect your old one, take the sensor off (leave it connected, it's kind of difficult to unplug when it's still bolted to the synchronizer)
If there is no play (a little is normal) then leave it alone.
Mine is good shape, someone replaced it some time ago, but I don't know when.
I squirt some Tri-flow in there depending on how much I drive the truck.
I use a long (1 Foot) 3/8 extension with a 1/4 inch adapter and a UV joint with a small 1/4 socket to get at it.
Once you get the knack down, it's pretty easy to remove the sensor.
The screen shot shows the metal DPFE sensor, yours is a 2003, so it might not be the same as my 1999, but probably is.
If you still have the metal one, then consider replacing it with the solid state plastic one.
#15
Yes, that's what is in the photo, when they go wrong, you will get a code for it, it's for the proper function of the EGR system.
If you don't get a CEL for it, don't worry about it now, but when it does happen, it's an easy fix.
The metal ones internally corrode with water and exhaust gasses and eventually the circuit board inside is subjected to the moisture and it fails, that's why the new one are plastic.
It's located just forward of the top intake manifold by the main air intake valve. There are two rubber lines running out of it that go into the EGR chimney that connects to the exhaust on the left manifold.
You need a 1 Foot extension to get the synchronizer out, not one inch.
And like I said, you may not need to replace the synchroniser if it's OK.
Remove the sensor on the top of it and inspect it for wear like I said earlier.
You will need the long extension to remove the tiny bolts that hold the sensor on.
If you don't get a CEL for it, don't worry about it now, but when it does happen, it's an easy fix.
The metal ones internally corrode with water and exhaust gasses and eventually the circuit board inside is subjected to the moisture and it fails, that's why the new one are plastic.
It's located just forward of the top intake manifold by the main air intake valve. There are two rubber lines running out of it that go into the EGR chimney that connects to the exhaust on the left manifold.
You need a 1 Foot extension to get the synchronizer out, not one inch.
And like I said, you may not need to replace the synchroniser if it's OK.
Remove the sensor on the top of it and inspect it for wear like I said earlier.
You will need the long extension to remove the tiny bolts that hold the sensor on.
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