• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Locked 3.0


Justins87

New Member
Joined
Mar 4, 2021
Messages
26
Reaction score
4
Points
3
Location
Kingman,AZ.
Vehicle Year
2007
Make / Model
Ford ranger
Transmission
Automatic
Ok so it's an 07 3.0 2wd auto and the motor locked up. Well I got it out and found the the gear on shaft where the distributor would go has about 3 teeth missing and the rest are about 75% gone. What would cause that and is there a fix? Is it also possible a misfire would also cause that much damage?
 

Attachments



Uncle Gump

Token Old Guy
TRS Event Staff
TRS Forum Moderator
Supporting Member
VAGABOND
TRS Event Participant
TRS 25th Anniversary
Joined
Sep 17, 2018
Messages
14,064
Reaction score
13,634
Points
113
Location
Ottawa IL
Vehicle Year
2006/1986
Make / Model
Ranger/BroncoII
Engine Size
4.0L SOHC/2.9L
2WD / 4WD
4WD
My credo
Lead follow or get out of my way
The camshaft synchronizer seized up.

Fairly well documented here on the site...

Do a search and you should have lots to read about.
 

fastpakr

Forum Staff Member
TRS Event Staff
TRS Forum Moderator
Supporting Member
Article Contributor
U.S. Military - Veteran
V8 Engine Swap
TRS 20th Anniversary
TRS Event Participant
Joined
Aug 6, 2007
Messages
8,033
Reaction score
2,852
Points
113
Location
Roanoke, VA
Vehicle Year
1999
Make / Model
Ford
Engine Type
V8
Engine Size
5.0
Transmission
Automatic
2WD / 4WD
4WD
Tire Size
285/75-16
Sad but true.
 

ericbphoto

Overlander in development
TRS Event Staff
TRS Forum Moderator
Supporting Member
U.S. Military - Veteran
TRS 20th Anniversary
VAGABOND
TRS Event Participant
GMRS Radio License
TRS 25th Anniversary
Joined
Feb 7, 2016
Messages
15,429
Reaction score
16,809
Points
113
Age
59
Location
Wellford, SC
Vehicle Year
1993
Make / Model
Ford Ranger
Engine Type
3.0 V6
Engine Size
3.0L
Transmission
Manual
2WD / 4WD
4WD
Total Lift
6"
Tire Size
35"
My credo
In theory, theory and practice are the same. In practice, they are different.
Yup. What they said. That probably caused a misfire before it totally seized. Not the other way around.
 

Justins87

New Member
Joined
Mar 4, 2021
Messages
26
Reaction score
4
Points
3
Location
Kingman,AZ.
Vehicle Year
2007
Make / Model
Ford ranger
Transmission
Automatic
Ok here what is weird, I was rolling it died and I couldn't get it started. Sat for a couple days put a new battery in it and it was idling for about 10sec then lock up and no start.
 

Uncle Gump

Token Old Guy
TRS Event Staff
TRS Forum Moderator
Supporting Member
VAGABOND
TRS Event Participant
TRS 25th Anniversary
Joined
Sep 17, 2018
Messages
14,064
Reaction score
13,634
Points
113
Location
Ottawa IL
Vehicle Year
2006/1986
Make / Model
Ranger/BroncoII
Engine Size
4.0L SOHC/2.9L
2WD / 4WD
4WD
My credo
Lead follow or get out of my way
Not sure I can explain your particular scenario... but when it quit... that synchronizer said I'm done.

It's possible you have another issue also...
 

Dirtman

Former Middleweight Moss Fighting Champion
Joined
May 28, 2018
Messages
19,304
Reaction score
13,329
Points
113
Location
41N 75W
Vehicle Year
2009
Engine Type
2.3 (4 Cylinder)
Transmission
Automatic
2WD / 4WD
2WD
Total Lift
It's up there.
Total Drop
It's down there.
Tire Size
Round.
My credo
I poop in the furnace.
The synchro drives the oil pump. The synchro has oiling issues itself so the bushing seizes, then the synchro gear strips and stops spinning, then the oil pump stops running, and then engine seizes. Chain reaction of failures. Engine probably initially locked up and after cooling down and a fresh battery it was able to spin, but having zero oil pressure 10 seconds was what it took to finally lock it for good.
 

ericbphoto

Overlander in development
TRS Event Staff
TRS Forum Moderator
Supporting Member
U.S. Military - Veteran
TRS 20th Anniversary
VAGABOND
TRS Event Participant
GMRS Radio License
TRS 25th Anniversary
Joined
Feb 7, 2016
Messages
15,429
Reaction score
16,809
Points
113
Age
59
Location
Wellford, SC
Vehicle Year
1993
Make / Model
Ford Ranger
Engine Type
3.0 V6
Engine Size
3.0L
Transmission
Manual
2WD / 4WD
4WD
Total Lift
6"
Tire Size
35"
My credo
In theory, theory and practice are the same. In practice, they are different.
It is now "brokeded pretty bad".

That's a technical term. You can quote me on that.
 

85_Ranger4x4

Forum Staff Member
TRS Event Staff
TRS Forum Moderator
Article Contributor
V8 Engine Swap
OTOTM Winner
TRS Banner 2010-2011
TRS 20th Anniversary
VAGABOND
TRS Event Participant
Joined
Aug 7, 2007
Messages
32,406
Reaction score
18,011
Points
113
Location
SW Iowa
Vehicle Year
1985
Make / Model
Ford
Engine Type
V8
Engine Size
5.0
Transmission
Manual
The synchro drives the oil pump. The synchro has oiling issues itself so the bushing seizes, then the synchro gear strips and stops spinning, then the oil pump stops running, and then engine seizes. Chain reaction of failures. Engine probably initially locked up and after cooling down and a fresh battery it was able to spin, but having zero oil pressure 10 seconds was what it took to finally lock it for good.
We had a guy seize up a tractor three times. It would run awhile and stick then cool off and run awhile longer and stick. Then he drove it into town so we could figure out why it kept seizing up. :fie:
 

Justins87

New Member
Joined
Mar 4, 2021
Messages
26
Reaction score
4
Points
3
Location
Kingman,AZ.
Vehicle Year
2007
Make / Model
Ford ranger
Transmission
Automatic
Ok with all that going on what can you do or check to make sure oil is going everywhere it should be going? And if you have a misfire, will it always pretty much be the camshaft synchronizer if the plugs and wires and coil pack are good, depending on compression per cylinder?
 

Dirtman

Former Middleweight Moss Fighting Champion
Joined
May 28, 2018
Messages
19,304
Reaction score
13,329
Points
113
Location
41N 75W
Vehicle Year
2009
Engine Type
2.3 (4 Cylinder)
Transmission
Automatic
2WD / 4WD
2WD
Total Lift
It's up there.
Total Drop
It's down there.
Tire Size
Round.
My credo
I poop in the furnace.
Misfires can be caused by a multitude of issues so no, you cannot always assume it's a cam synchro issue. A bad or leaking fuel injector, bad plug, bad wire, bad coil pack, ECU issue, vacuum leak, bad head gasket, cracked head, bad valve, bad valve spring, carbon buildup, bad valve seal, and on and on and on...

The engine can actually run just fine without the cam sync, it's mearly there for improved feedback to the computer to help with emissions. The engine can run on the crank sensor alone. Not that you can just remove it because as previously stated, it drives the oil pump.

As for making sure the cam synchro is being oiled, they typically begin to squeak when the bushing is failing. Replacing it before it seizes is the key. There are some articles in the tech section about replacement, and how to prevent failures.
 
Last edited:

Bgunner

Well-Known Member
Supporting Member
Joined
May 14, 2018
Messages
1,804
Reaction score
1,111
Points
113
Location
Western Mass.
Vehicle Year
1994
Make / Model
Ford/Ranger XLT
Engine Type
3.0 V6
Transmission
Manual
2WD / 4WD
2WD
Tire Size
225/70/R15
My credo
If it's not broken Don't Fix It!
As Dirtman mentioned: they typically begin to squeak when the bushing is failing.

Most times as they start to squeak they sound like the serpentine belt is squeaking causing the owner to ignore it for a while but as it gets worse you will hear once in a while metal on metal squeak this is a sure sign you are on borrowed time.

It is common for the 3.0L distributors to do the same thing, squeak and go bad due to the same oil starvation issue. They removed the distributor in '95 and went to the synchronizer with the same fail point. I have the distributor and had a hell of a time finding the squeak due to the belt would squeak then the distributor would squeak at the back of the engine so I was bouncing front to rear trying to find a single squeak when there were 2 but they sounded the same. It wasn't till I heard metal on metal that I knew exactly what was squeaking. It wasn't till after I found my issue did I found all the write ups here about the failure point and the signs.

IF teeth are missing the cam gear is most likely damaged along with loose metal pieces in the the engine. These pieces will destroy the interior of the engine quickly and need to be removed by removing the engine and a tear down done. since you locked up the motor you are in for a used motor or a rebuilt.
 

bills4065

Member
Canada Military - Veteran
Joined
Apr 1, 2021
Messages
37
Reaction score
9
Points
8
Location
Dartmouth Nova Scotia Canada
Vehicle Year
2007
Make / Model
Ford Ranger
Engine Type
3.0 V6
Transmission
Manual
2WD / 4WD
2WD
Justins87 just curious how many miles on your engine when this happened?
 

pjtoledo

Well-Known Member
Supporting Member
U.S. Military - Veteran
Joined
Oct 5, 2007
Messages
5,434
Reaction score
3,039
Points
113
Location
Toledo Ohio
Vehicle Year
20002005199
Make / Model
Fords
Engine Size
3.0 2.3
Ok with all that going on what can you do or check to make sure oil is going everywhere it should be going? And if you have a misfire, will it always pretty much be the camshaft synchronizer if the plugs and wires and coil pack are good, depending on compression per cylinder?
the top bushing in the synchronizer is not lubricated by the engines oil system.
it's sort of a bronze like bushing.
 

Sponsored Ad


Sponsored Ad

Members online

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Truck of The Month


Mudtruggy
May Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top