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Sport Trac is the pickup truck bed version.

There are a bunch of SOHC swaps going on using newer mustang 4.0 sohc motors. This is way less expensive than the tensioner fix, and is a permanent fix as the new mustang motors are a redesign without the tensioner issues.

Ok, opening up again with my own pain. P0303 codes, traced to compression of 90 in Cyl 3. I checked vacuum, and its a steady 19. No coolant loss. Im guessing I have a exhaust valve not closing all the way, or burnt valve. Sure hope its head. Even gasket is ok, as its coming apart...

Ok, New gaskets and head on the way. Clearwater Cylinder heads is excellent to deal with. They are sending me another head with a pre-paid return label. I just want to make sure I have covered all bases when I get my motor apart. I dont want to get stuck needing another part. Now, as long...

Have you done a compression check on the cylinders? A mismatch in compression will definately cause a motor to shake.

Which motor? v8? Lots of posts on the cam sync sensor. Do you have a stethescope? They are cheap, and with the motor running, you can poke around under the hood till you set the probe on the offending part. The noise will get very loud when you do. It could be as simple as your...

Well, we both seem to be in pretty much the same boat. My #3 cylinder compression is quite low also (80 to a max of 120). I'm going to see about having someone with a leak down tester see if they can give me more info. Your compression numbers are way higher than mine, interestingly enough...

Did a compression test: 1st Bank Cyl 1: 90, 115, 130 Mult cranks max 140 Cyl 2: 100, 120, 140 Mult cranks max 140 Cyl 3: 80, 100, 120 Multiple cranks max at 120 2nd bank Cyl 4: 95, 120, 145 didnt take max's Cyl 5: 100, 125, 145 Cyl 6: 100, 125, 150 Cyl 3 doesnt look good. On to...

Why not start by checking/replacing you brake light bulbs? If the bulbs are good, check where the bulb plugs in to for corrosion/poor connection.

Bank 3 seems to be where it all happens. At the back lower intake usually blows out. The factory cylinder heads are weak on Cyl 3 on one bank(Back of motor) and Cyl 4 on the other bank. Its interesting that my #3 is whats misfiring also. It seems that some of these issues are almost...

Ya, your pulling some coolant in to your motor, either thru your head gasket, or a hairline crack in a head. Maybe lower intake gasket again? But which is it? Whick bank?? Im still no further ahead on my misfire issue either. No spark plug issues?

Ok, so the dead sensor was the DPFE. It just so happened that the exhaust gas line came off (The nipple was pretty short from a previous hose going bad) and burnt a hole thru it. The mechanic looking at it has ran out of time for now. In a week or so, he is going to set it up on the scope...

This thread rates up there with worst nightmares.

So, I took my exploder in to a licensed mechanic. He's a friend of a friend, and is doing the work on the side, He has been struggling with it. This morning he called me and says I have a dead sensor, and is picking one up. The sensor is about $100.00. I sure hope it fixes the issue...

So, this sounds like the drive shafts might just be a bolt on? No mounting issues? Wow, would that ever be amazing.

Sorry I didn't strike a cord anywhere in my post. Do you have any idea what colour wire would be a pulse wire to the coil off the pcm? I'm GUESSING that there is no pulse right at the PCM either. That would mean that something is either not telling the pcm its supposed to sent spark pulse...

At the coil, can you find a wire that is the input pulse the coil of a certain cylinder and see if you can see that pulse? Im not even sure what you could use. A volt meter probably isn't fast enough. Here's a link http://wiki.answers.com/Q/How_do_you_check_ignition_coil_operation You...

Thanks BigPip. Somehow, I think it would be more work (And down time, as this is my Daily Driver) than its worth for me to switch to SOHC. This whole thread sounds fantastic though.

I fought with mine, it won. I bought the ford tool. $100.00 Too bad shipping is so expensive, id be happy to lend it around.

Yup, without having the codes read at this point you are going to be guessing with some expensive parts. Odds are, the issue is one of the wheel bearings (abs sensors in the front are part of the wheel bearing). Which one? Get the code read and you won't be guessing.

I feel like this is a hyjack, sorry. BigPip, what was involved in changing from the OHV to SOHC? I love the idea of a 2005 mustang motor. I would think there would be serious electronic mods to do though. I see you have done this. Can you clarify? Do you have a build thread somewhere I...

What he said Need that engine code to even start thinking about what the comon causes might be.

hahaha, yup, been there, done that. Both heads sucking coolant. Everytime I stepped hard on the gas for more than a few seconds I knew I was going to have to change at least 1 spark plug. The difference this time is that when I changed the spark plug, my truck still would not idle well when...

So, reading this, why would anyone bother pulling their older Overhead Cam motor to do the tensioners when you can just drop in a frech motor? Here I was all smug about having the ohv, and not tho sohc for reliability's sake. Now I'm just plain jealous of you guys. I'd love to drop a almost...

could just be the lifters pumping up. My 4.0 OHV tends to do this also.

ok, Fixed. I just wanted to update. I took it in to well known shop. The mechanic felt that once the brake rotor warmed up the passenger inner brake pad was shifting, clattering and banging. Fix? Resurface rotors, new anti-squeal metal, and disk brake quiet. He said even though there...

It becomes tough to know what the issue is. I don't seem to be seeing te 0304 anymore. No more codes at all. It does sound like we both have exactly the same issue. The fuel in the old filter was murky. I do need to check fuel pressure and vac pressure. It looks like a fuel pressur guage...

I'd bet that your hearing worn rocker arms and push rods. Those can be replaced without pulling the heads, and should be replaced together.

Maybe I'll see if I can match wire colours on the injector against a wire on the pcm and check for continuity. I doubt I'd be able to see any kind of a electrical pulse with a digital meter (Im guessing a scope would be required) at the connector if the injector. If I could see a electrical...

Yup, next step................Pick up compression tester. It really never pays to rush. Vaccum leaks now. P1132, and 1152.

ok, so I think the P0301 was me pulling plug wires, confirming my issue. Now, I just changed all injectors and guess what? P0303. Im thinking a lot of not very nice words here. Is it possible that fuel preasure could cause just 1 cylinder to read misfires at low idle? I have a very bad...

I was wrong, the clunks back. It sure sounds like a drive shaft, or cv joint. When I apply the brakes lightly at slow speeds, its a rythmic ca clunk, ca clunk, ca clunk...... I think I might pull the front drive shaft tonight. I have a feeling it could easily be a cv joint. I'll have to...

I have to ask...........What mods are planned? If your not sure yet, Im certain there will be ideas here.

And up comes another code. P0301. So add that to P0303. 2 cylinders misfiring Fuel pressure? Vaccum leak??Finally changed the fuel filter lying in the garage. also dumped fuel system cleaner in to the tank. I guess I'll need a vaccum guage and a fuel preasure guage. Anyone know the...

Yup, looking at this, I wish I'd have shaved my new heads and had them Port and Polished. Then I could have gone with the 422 cam. Nice setup, for sure. Congratulations. Luv the Supercharger. Thanks for keeping up updaee on this.

You do mean 'Dont flicker with the motor shut off' don't you?

Im betting you have an alternator/charging issue. Im no expert, so others please feel free to chime in.

I used the Fel-pro high end, and I don't (Think?) I have an issue. Although, I am pulling Cyl #3 misfire codes right now. I just ordered a new injector. I think I'll abandon my truck if its a head issue.

Oh Boy, Good question. With the motor shut off, do the headlights still flicker? You could have an alternator issue.

Thanks for the tip. I was able to get some information off of what I have, and I emailed it to them. It wasn't exactly easy with my ageing eyes. Here is the info I have on them: Cream in colour B280435021/7 0280155846 I offered to send them a picture if it helps. More research...