Okay here we go 2005 Mustang GT 4.6 when to change the plugs broke one tried extracting it ended up pushing it through Motor got started so had to pull the head off had a snap valve I had the valve repaired put everything back together now it's throwing codes for cam sensors both banks and I'm losing coolant and white smoke coming out both tailpipes could I have messed up both head gasketsto someone steer me in the right direction on how to repair this

 

That's... *REALLY* difficult to read. So... hope you don't mind...

There we go. Much easier to read.

Also, hey there, welcome to the forums!

Yes, it's likely you've messed up the head gaskets when you reassembled the thing. You did get new ones, right?

What you need to do, if you're going to tackle this yourself, is get a shop manual, if you don't have one, and read it when reassembling the heads. And get new head gaskets *again*. Plus new head bolts, as they're torqued once, then you toss them, if I remember right. Trying to reuse them may not get things torqued down right.

The coolant is getting into the cylinders and that's what's causing the white smoke. And/or it's also getting into the oiling system, and could be damaging the engine, and/or causing the cam sensors to have issues, or you mis-assembled the cams or sensors... all kinds of cool things (he says somewhat sarcastically) could have happened with the rebuilding attempt.

But first things first. That white smoke/lost coolant issue is *very* important you get tracked down and fixed, because it's also possible you're making a milkshake outta the oil, and if so, you're going to wind up needing a long block/complete rebuild as the engine grinds to a halt or such.

Perhaps it's best to take it to a shop that does that for a living and get it done right. No offense... but if you've got this much problems, this type of engine may not be a thing you wanna tackle anymore.

What I wouldn't give for the old pushrod 302 ease of head removal/install on this engine...

 

first of all thank you for taking the time to help. sorry about the one long sentence. the is no water in the oil I did check that. I did use new gaskets. I also have a manual that I used. I may have over torqued the head bolts. it uses a multi layer head gasket, I was thinking the I put them on the wrong sides, also there were a couple of the gaskets in the head gasket set that I did not use. I used the intake gaskets, the timing cover gaskets, the exhaust, valve cover gaskets. I just want to make sure that it is the head gasket and not the intake. as for the timing, if I was one tooth off would the motor still run smooth?

 

No, the engine would run like crap, and definitely give the codes you're getting, as the cams can't be moved enough to compensate for what the computer wants. Also, I don't know if that is going to cause a valve/piston interference issue or not, but bent valves could happen if it's off too much. Sounds like it isn't, though, so there's that.

As far as which gasket... It's likely a leaky head gasket on at least one cylinder, as if you're not frothing the oil with the coolant, then the exit is where the smoke is. And the only way that happens is if it's a head gasket... or a cracked cylinder, or cracked head. Which does happen from time to time, unfortunately, although quite rare. All three, though, are candidates for the smoke/lost coolant you describe, and coupled with being off a tooth, potentially, with the timing, well...

Also, because the exhaust is coupled with an H pipe, you will get smoke out both if there's smoke at all. Unless you changed the pipes out and made them separate, that is.

Probably need to have a guru look at it at this point, if it was me, rather than chase that goose.

 

I am glad u told me about the h-pipe, I thought that was a bracket. Well anyway, I removed the plugs and all looked good except 1, the one that started this entire ordeal. Looked real used. I did compression check and that cylinder was low. When I removed the valve cover (left side) I could see moisture on the inside if valve cover. So i took off the intake and I could see the valves and that cylinder was milky. I will finish taking off the head tomorrow night after work and then get head to shop on Thursday to see if cracked or warped. Of course if the head gasket shows something that it was it then I might not take head in. My question is, worst case and I have to replace the head (which I am sure that will be the case) what info do I need. I read that I need numbers off the block and the head. Also can any steer me in right direction to buy one. I am in st Louis. Thank you