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Turns out my 4.0 Ford engine will never work with aftermarket coils. Something to do with the aftermarket coils being too hot and causes the pcm to try to compensate and consequently the Check engine light give errors PO 351 and or additional PO 35__ errors. I put in three after market coils all...

Thanks for the diagram, a tremendous help. What book do you find these diagrams. I was trying to install a new radio when I found the amplifier is in front of the passenger side rear wheel well. Surprise, suprise.

Thanks for the suggestion, where on earth do I find a engine wiring diagram? There must be 100 pins on that connector.

I replaced the pcm still had the errors. This repair is becoming a full time hobby. Does there exist test procedure for your suggestion?

Don't think it is the coil, the one installed is the third coil installed since the check engine light started. So it must be the wiring between the coil and the cam position synchronizer. Is there a procedure for checking the circuits? Thanks for your input.

In a discussion with a shade tree mechanic of mine, he is of the opinion that the error codes suggest the problem is most likely electrical rather than the synchronizer, since the engine runs smooth and all components (plugs, wires, coil) are new, and there is no noise coming from the CPS. Is...

The ground wire is part of the wire bundle that goes to the computer and some other stuff, the clamp for the wire bundle attaches to the firewall then the ground wire attaches to the double ended bolt.

Seems to me that cussing always helps when nothing else will do the job.

I have a 96 with the three wire sensor. I had no idea there were two shaft lenghts. Not an issue , I am replacing the position sensor cap only.. This another trouble shooting step. I had PO 351 and PO 353. I have replaced plugs, wires, coil, all that is left is the cam positioner. If that...

I am in the process of replacing the synchronizer in my 1996 4.0. Thank you so much for the two illustrations, I had planned to take photos of disassembly, you made my year.

Thanks for the reply. I do have the 4.0 engine. I am getting error codes PO 351 and 353. I have replace plugs, wires, coil pack. I hope replacing the cam position sensor will cure the codes.

Thanks for showing the location. Looks like the intake manifold will have to come off to reach the synchronizer bolts. Is this correct? Is there printed instructions on how to do this?

I am trying to replace my cam position synchronizer and for the life of me I can't find it on the engine with the engine in the car. Seen a few Youtube how toos, one has the engine pulled and on a stand. The other has a clear view of the location. It looks like he pulled the intake manifold to...

I have not commented on the "Check Engine Light" in a few days. I tried all suggestions with no luck. I cleared error codes a number of times. "Check Engine Light" returned immediately or after a few miles and a couple of starts and stops. I finally felt defeated and took it to my local Ford...

Hooked up OBC tester as soon as stuff was installed. That was when I saw the error codes. replaced plug wires, numbered wires on both ends with marker before installing, so I'm sure of the order. Is there a procedure to check a coil pack while it is still in the box?

Got smart on that one years ago. Numbered the wires on both ends. So positive on that issue.

My 1996 Explorer just rolled over 200.000 miles, replaced plugs, wires and coil pack with DENSO parts. Before the new parts there was no check engine light, truck ran OK, quick start, not a lot of power, now it is showing PO 351 and PO 353. Bought Motorcraft wires, coil and plugs and replaced...

What did you do to win the fight. I have tried every thing I can think of to get a round peg into a round hole, should be a breeze.

I purchased Denso sparkplug wires and coil for my 1996 Ford Explorer 6 cylinder 4.0 liter. I cannot get the wires to stay in the coil. The holding clips on the plug wires will no latch onto the coil terminals. I cannot press the plug wires into the coil far enough to hold. This is not a...

I purchased Denso sparkplug wires and coil for my 1996 Ford Explorer 6 cylinder 4.0 liter. 199,950 miles. cannot get the wires to stay in the coil. The holding clips on the plug wires will no latch onto the coil terminals. I cannot press the plug wires into the coil far enough to hold. This is...

My 1996 Explorer 4.0 4WD has a problem with 4WD. When I back up it feels like the 4WD is engaged, it pulses like the truck is in 4WD on dry pavement and you try to make a sharp turn. This is when the dash switch is set to 2WD. If I switch to 4WD, nothing happens. 4WD does not engage. While...