F250 Locked up (Help)

[chromerunner]

I bought a F250 at a auction that was said to have the motor locked up. Then when loading it the mechanic that looked it over said he thought it was the trans not the motor.....

-Turn the key and it just goes CLICK

- Droped the starter and it jumps out and spins good and fast

- When turning the key on and trying to start it the truck clicks only but you can see the fan move a little forward each time...So im thinking the motor may not be locked up...

Could this be a Converter problem holding everything up?

truck is a 2000 f250 5.4L auto 4x4 if that matters.

 

[Yay!Gurrr]

'Locked up' could be lots of bad things... Could be seized, broken piston/rod timing chain, etc.. any number of things...

 

[chromerunner]

double post

 

[chromerunner]

'Locked up' could be lots of bad things... Could be seized, broken piston/rod timing chain, etc.. any number of things...

True but if the motor was locked up it wouldnt turn the fan a little forward each time when trying to crank right?

 

[JoshRountree]

Disconnect the negative battery cable and try turning it over by hand?

 

[Bullardbs]

True but if the motor was locked up it wouldnt turn the fan a little forward each time when trying to crank right?

It could I've seen cars lock up then when they cool down it will turn over

 

[transman731]

the converter could cause it lock up, but i would pull the belt off and try to turn it over.
is it a diesel?

 

[chromerunner]

the converter could cause it lock up, but i would pull the belt off and try to turn it over.
is it a diesel?

I just heard from a guy who also told me to try it with the belt off. First thing i will do in the am and see. Thanks

It is a 5.4L gasser.

 

[LBZ_Duramax]

I would pull the plugs and see what it does then. Could be an injector stuck open and filled the chamber full of gas and basically hydrolocked it. Also if it turns over with the plugs out and oil/coolant/gas or whatever comes out of the spark plug hole you know what hole to start looking at.

 

[chromerunner]

Took the belt off today.....Same problem.

 

[LBZ_Duramax]

I would pull the plugs and see what it does then. Could be an injector stuck open and filled the chamber full of gas and basically hydrolocked it. Also if it turns over with the plugs out and oil/coolant/gas or whatever comes out of the spark plug hole you know what hole to start looking at.

Did you try this?

 

[chromerunner]

Did you try this?

not yet..plugs on this seem to be a 4 hour job..

 

[Bullardbs]

not yet..plugs on this seem to be a 4 hour job..

And they like to break coming out of the 5.4 too

 

[shawn]

... or pull a chunk out of the head when they come.

 

[LBZ_Duramax]

And they like to break coming out of the 5.4 too

That is just a problem on the 3 valve heads. The 2000 model is just the 2 valve head and they dont have problems with the plugs breaking off.

 

[campbell08]

Plugs on the 2valve 5.4litre isnt that bad i do mine every 15,000 miles just so i wont have a problem with them freezing into the head usually only takes about and hour it looks worse than it is.