mrdean_o

While diving about fifty mph the check engine light came on and the engine started missfiring real bad. Noticed a weired smell and then a strong smell of fuel. Had the truck towed to a dealer. The service manager has informed me that the engine could be hydrolocked because a fuel injector missfired. The Manager also informed me that the engine would need to be replaced, Was wondering if this could be possible.

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2006 F150 5.4 ltr. 35179 miles

ktmboyz

yep unfortunatly pretty common.. most usually will bend a connecting rod and end up with a pretty bad eng vibration.. sometimes you get lucky and it doesnt damage the eng and the injectors can be replaced good luck

mrdean_o

Has anyone else experienced this or heard of this happening?????

transmaster

I have heard of a hydrostatic lock, which is where you have excess unburned fuel build up in a cylinder when the piston gets to top dead center it runs into this unburnt fuel and it is like hitting a brick wall. what it can do is bend rods, blow head gaskets, in extreme cases blow a head off. This used to happened with souped up Ford, or Mercury Flathead V8's. The Hot Rodders would shave the heads, put in thin head gaskets, if they added nitro big Ka-Booms could follow. A friend of mine did just this he had a short interruption in his ignition system when the ignition started working a few seconds later it blew one of the heads clean off of the block. The head was shot through the cars hood and landed in the dirt by the side of the road, it was undamaged. He told be he removed sheared off head bolts and slapped the heads back on, replaced the hood and off he went. It is a very rare thing these days but if you have a injector that jams open it will not take long at 35 or 40 psi to dump enough raw fuel into a cylinder bore to lock it. Every once an awhile you can see this happen the a drag racer, if one or more of the cylinders looses ignition it will load up and it will blow the engine up.