jjacquez122966

All right, I may be crazy.

I have a 1990 Honda Accord with and F22a motor.

I was driving today and all of the sudden my car started making a terrible noise, like my muffler had fallen off.

I took it home, looked under the hood and found that one of my spark plug wires was disconnected and just hanging. Upon further inspection, I noticed that the spark plug was not even in the cylinder.

I pulled another spark plug from my other honda(91 accord) and put it in, and the wire would not connect to the spark plug. I pulled the wire from my other car and connected the spark plug.

I started the car and it is running fine. I tried to remove the new plug to inspect and noticed that I was not able to remove the plug. It seems like the plug had sunk down into the cylinder. Could this be, and if so, could my old spark plug be lodged somewhere in my block.

Please help. What does this mean.

mayfieldfour

iTrader: (25)

WTF?? That is the craziest thing I have heard in a long time. There is no way your plug could be in the block. That would mean the pistons would have to come entriely out of the block. If your wires was hangin out, it was probably somehow pulled out with it. Sounds like someone didn't tighten it when they installed it. Might want to check your other plugs now a well.

iam7head

the spark plug might flew off the car already, maybe parts of it fall into the engine hole but the whole sparkplug is very unlikely to fall into the hole.

please do replace all four of the plugs and wires, make sure they are torqued down and sitting correctly.

use a compression guage to check the compression for all cylinder.

if some chucks of metal fall into the hole, your piston might be damaged or the valve might be bent

P_Adams

Allow the head to cool down before you attempt to remove the new plug from the head. If it still doesn't want to come out, you've got three options:
Leave it in there until it causes running problems (least favorable option)
Disassemble cylinder head to the point you have access to the spark plug hole and install a heli-coil (2nd least favorite option)
Remove head completely and have heli-coil thread insert installed.
Replace Cylinder Head

It sounds that the spark plug was loose and via vibration unscrewed itself to the point that the threads failed from the compression pressure. What makes it worst is it sounds like you cross-threaded the replacement - and removing it will take what threads you've got left.

P