I've been reading conflicting information on how to install a new cam synchronizer in my 2004 Ranger 3.0.

Assuming I'm starting from scratch, how do I go about this?

Where does the notch in the crank pulley tone ring have to be in relation to the crank sensor for TDC? I've read notch at the crank sensor, and I've read notch 5 teeth before sensor.
How can I definitively tell that I am on the compression stroke?
Where does the arrow point on the synchronizer alignment tool when the synchronizer is in place? I've read exactly perpendicular to firewall, and I've read 15* give or take to perpendicular.

I know this has been covered, but I cannot find specific, definitive instruction.

Thanks.

 

Welcome to the forum

You might be making this more complicated than it is, if old cam synchro is still in the engine.

It is already "timed" so you just need to match it when you remove it and put the new one in

Take sensor off old unit(and new one), leave synchronizer bolted down
Inside there will be a tab that turns with the engine, turn engine until tab lines up with sensor bolt hole or ?? what ever you want on the housing
Take a picture or "remember" where it lines up

Remove old synchro and install new one and install it so tab lines up like the old one
The synchro gear is angled so tab will rotate as it slides down into place

But after removing old one if you line up the tab in the new one as the old one is when out then it should turn back into correct place when seated

If you want or need to time it then read here: Ford Ranger 3.0L Camshaft Position Sensor

TDC compression stroke can only be discovered by removing #1 spark plug and installing a compression gauge or "your finger"
Rotate engine in its normal direction of rotation, usually clockwise, until you start to get compression in #1, then look at crank pulley, keep turning crank until TDC mark is at 0deg, you are now at TDC compression stroke for #1
It is best to remove ALL spark plugs when doing this, much easier to turn the engine manually with no compression

 

Thank you for the response. At this point the synchronizer has been removed and I've made numerous attempts to set it correctly. I may already have it set correctly, but I am trying to verify conflicting information I've been reading regarding it. I have the alignment tool, and I understand the concept.

My questions regarding the notch in the tone ring and whether or not the arrow should be pointing directly toward the firewall are my most important concerns.

As far as finding TDC, I have tried a screwdriver in cylinder 1, stopping at its peak. When it is at it's peak, the 6th tooth from the notch on the tone ring is in line with the crank sensor. I have read that TDC is when the 5th tooth is in line with the sensor, and I have also read that TDC is when the notch is in line with the sensor. I have reinstalled the synchronizer with the crank in each of these locations and have not had a positive result. The truck runs, but stumbles, and when I rev it, it backfires out the intake.

I need to confirm definitively that I have it set properly before I move on to checking other possible causes. I have already found a faulty coil pack and replaced it, as well as new plugs, wires, and crank sensor. The synchronizer in it is also relatively new, but it was an aftermarket Autozone unit.

 

You are working on a 4-stroke engine, which means there are TWO top dead centers for #1
Compression TDC
Exhaust TDC

So piston(or tone wheel) at the top doesn't tell you which TDC you are on, only the Valves(cam) do

Only way to tell compression TDC is as said previously or to remove valve cover on #1 side and watch the valves for #1

The 4 strokes of the piston
1. Intake stroke, piston goes down sucks in air/fuel, intake valve open
2. Compression stroke, piston goes up compressing air/fuel, both valves closed
(one full turn of the crank has happened now, TDC to TDC)

3. Power stroke, spark plug fires and ignites air/fuel mix which pushes piston down, both valves still closed
4. Exhaust stroke, piston is going up and exhaust valve is open, exhaust is pushed out
(2nd full turn of crank has happened, TDC to TDC

Back to intake stroke

As far as the instructions go you FIRST need compression TDC
And use the marks on the crank pulley not tone wheel, on some years it was 0deg on others 10deg

The CAM sensor signal is adjusted by the computer so close counts, computer does balance test if it notices the Crank sensor(main timing sensor) and cam sensor are not perfectly aligned, it will advance and retard injector timing to see if power increases or decreases, and find the sweet spot for best power and economy.

 

Maybe this will help.

https://www.ranger-forums.com/engine...9-3-0v-114186/

And as Ron says, if you are using the tool, you have to find TDC on compression, that's number 1 piston, passengers side, front.
The piston nearest the air filter.

Don't let all those confusing instructions about degrees get to you, they make no sense at all.
I think they apply to older synchronizers, but not yours.
When I first did mine, I found it confusing too and the manual was of no help.

Make sure you have the right alignment tool. If you have the metal OTC tool, then it will be marked right on the tool. (3.0L 2V [2 Valve])
There is a plastic set too, use the Blue one, not the Black.

When correct, the tooth will land a bit off to the side in the big "cut out" in the link I gave you.
You want number one at TDC on compression when the tooth is in that position in the synchronizer.

You can use your tool to get it just right and simply move the synchronizer back and forth until the alignment tool fits in place.
The correct position is when the wires for the sensor are comfortable and not stretched.

You can put the synchronizer in any position you want as long as the tool lands the tooth in the proper position, but there is only one spot where the wires will comfortably plug into the sensor.

 

Hi, I'm looking for some guidance in properly setting up the cam syncronizer in my 2002 Ranger 3.0. A previous owner replaced it, but apparently didn't have it properly synced. This the error that shows up when I read the fault codes:

P1336 Misfire Monitor Hardware - CMP(Camshaft Position Sensor) Misaligned, CKP(Crankshaft Position Sensor)/CMP(Camshaft Position Sensor) Noisy

I've spent a day and a half trying to sort this, but can't get rid of the code. It always comes back as soon as the truck is driven. But it runs and drives fine. There is no hesitation or loss of power and it purrs like a kitten at idle.

The main problem, I believe, is that I can't find the true TDC on cylinder #1. The timing marks on the harmonic balancer are so faint that they might as well not even be there. I cleaned off as much of the surface corrosion as I could and coated it with oil, but still can't see anything. I have the blue plastic alignment tool for the cam syncronizer and have that part lined up, though. Today I tried using a small wooden dowel to feel for TDC while a helper turned the crank. I thought I had it (crank position sensor directly on top of the 5th tooth left of the notch), but it made no difference.

Am I barking up the wrong tree? I have not replaced the crank position sensor. Should I? Or would I just be throwing money at it?