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5.4l thought seized, possible hydrolock....

Old Dec 9, 2023 | 12:14 PM
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Default 5.4l thought seized, possible hydrolock....

So I've been trying to start my engine It's always a no crank no start, just one click and it doesn't even sound like the starter motors engaging, finally got into my cylinders and they were full of some kind of liquid. It was nasty there was green, I had to have a friend come over and show me that I just needed to put muscle into turning the crankshaft by hand and that if it's nearly hydrolocked or hydraulic you have to go counterclockwise to get it to move. So I did and And I began to try to clean out all the crap that I used to try to unseize it when I had no idea what hydrolock Even was. But I can only get it to turn a few turns and either direction before it hits a major resistance bump. Mini I can turn it pretty freely but then it gets to a point where I feel like I can't turn it at all. Goes in both directions and I'm wondering if this is like a timing issue or if there might be damage done from trying to start it several times when it was like this.

It's been sitting in a driveway for over half a year and it has not been driven and I don't know how long but how it got fluid in the cylinders I have no idea I suspect it might have been something to do with my vacuum and brake booster system because of the fact that I don't use green coolant.

And I'm about to try to turn it over with the starter motor with everything disengaged and unconnected just to see if I can get it to spin otherwise I feel like I might have had some major damage done and it's probably dead. But I'm really hoping that if I'm correct because of things like a camshaft position error sensor and several other mistakes that were just stupid to make like forgetting to connect a fuel injector when trying to start it for instance just little things like that here and there I imagine over time would cause errors. Like misfires or something like that just adding up over time I don't know how it works exactly if that's something that's plausible or not but I'm about to just jump the solenoid and see if I can get it to start or I mean turn over so that way I can fill it back up with oil and put it all back together and hopefully have an engine that works. There's this one problem. That separation there is making me nervous. I don't even know how the torque converter might come into play but something tells me it might.

Separation of the plate from the torque converter itself I mean I know I can pop open that cap and access it and even turn it if I want to but I don't know what the consequences are of that or if they're supposed to be a gasket there or anything of the sort. My guess is that since it's completely and totally rusted looking inside it's not good, I don't know if that's normal or not but I don't think it would be.
 
Old Dec 9, 2023 | 05:21 PM
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First , that rubber plug is there to gain access to drain the torque converter when servicing the trans. Road salt and moisture can get in there and cause corrosion not a serious problem.
What you might consider,,,,,,,,,,,,,,,,,blow out the spark plug holes of any grit or dirt. Remove the spark plugs and place them so you know exactly which cyl they came from.
If they show any signs other than a dry black covering, you will have some idea of which cyls could be involved.

Then you could try turning the engine over one or two revolutions , first by hand to see what comes out the plug holes and if nothing , then you might pull the fuel injector fuse, try the starter. If anything comes out of the holes but air, you will need to determine what it is. Just be careful not to crank the engine over more than one or two revolutions because we don't know if something is broken and could become jammed and cause further damage. Let us know what you find, thanks.
 
Old Dec 11, 2023 | 02:15 AM
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Already done, although I wasn't able to analyze the cylinders because I wouldn't know exactly what I was looking at, but I did pull out spark plugs, I was under the impression of it was just seized then so I followed a YouTube videos instructions and poured in some diesel and deep creep to try to unseize it and then let gravity in a little bit of weight try to turn the crankshaft but it wasn't budging. tried rotating the engine by hand and it's only turning partially. I'd say just under one full rotation if that maybe even half of one. Had a friend of mine come over and he showed me That I was just being a little too cautious and he was able to turn the crankshaft in reverse to decompress the cylinder that had all the crap in it. After that he told me just to basically suck out all the crap, drain the oil, Crank the engine but don't start it, and then fill the oil and put it all back together and then start it. But that's when I noticed that it won't turn all the way. I turn it to a certain amount and then it just in immediately becomes much more resistant to being turned and again nervous about trying to just muscle through it I don't think I should. I don't exactly know If this is even possible but it seems to me like my timing is off to a point where have moving parts that are coming in contact with each other preventing it from turning all the way.
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Old Dec 11, 2023 | 08:08 AM
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You are very possibly right.

If something went wrong with the timing system for the mechanical components, there could be a lot of work ahead and if that is the case
don't attempt to start the engine with the starter until we are sure we aren't doing more damage..
 
Old Dec 13, 2023 | 04:17 PM
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Well it's very nice to know that I at least am starting to learn. It's been a very long road but I have not tried to forcefully start it I've only done so by the ignition and it's basically done a click and that's it at the very most sometimes not even a click. So thank you for kind of confirming my thoughts I have never gone to school for this obviously, I've never had that teacher to go "Yes that is correct let's Make sure that that knowledge is cemented in and then go from there." Because I don't trust Youtube unless it's my last resort then I trust YouTube. Thank you again my friend.
 
Old Dec 13, 2023 | 07:41 PM
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If something went wrong with the parts that keep the cams timed with the pistons , you could wind up bending valves and now both heads will require repair or replacement.

This is going to require some dissembling to verify if this is what happened.
This is most likely more than you might be equipped to handle. There is a lot of work to verify this and if what we suspect is true, you really don't want to get involved in this.
The suggestion is , get more than one opinion from people who know since this can get a little costly.
 
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