Spark plug cylinder stripped

That just means a misfire on cylinder 3. I don't know what kind of car you have. It could be a spark plug or spark plug wire. It could also be a coil on that plug, if your car has that.

Prolly a dead cylinder , on dry land run the motor with water supply of course . Remove the engine cover and start the motor, with spark plug boot pliers or similar tool start removing the spark plug boots one at a time . If you notice a difference when one is unplugged that's the working clyinder. Do this to all 3 when you find the cylinder that makes no noticeable difference when it's unplugged you found part of the issue. Bad plug bad plug wire , bad coil ect . Good luck

It could be one or both of the items you discussed. In addition, did you change the rotor when you changed the cap. If the cylinders have individual coils the coil could be weak as well.

First lets make sure we are on the same page here.Your saying you have no clutch resivioir and the system is feed from the brake master cylinder correct .Now the clutch has two clylinders the master witch atteches to the clutch pedal with the rod and it mounted on the fire wall . The slave cylinder is mounted between the bell houseing and the engine . And to replace this you would need to remove the transmission and actualy moves the pressure plate springs back when the pedal is depressed . Think of it like a light its eighter on or off and pushing the pedal down turns it off Normaly the clutch would be bleed at the slave cylinder there should be a bleeder fitting near the top of the bell hoseing. And should be bleed just a brake line no trick you just have to find the bleeder . Check for fluid at the clutch master on the pedal if you see any oil at all leaking you will never be able to keep it bleed sometimes there bad even when new .If oil can get out air is GETTING IN and it will constantly need to be rebleed. Any questions fell free to ask

STANDING IN FRONT OF CAR TO THE LEFT ON PASSENGER SIDE CYLINDERS FACING YOU ARE 1 2 3 ON DRIVER SIDE CYLINDERS FACING YOU ARE 4 5 6 ALL THIS INFORMATION I GAVE YOU IS FOR THE 3.0L AND 3.2L DISTRIBUTORLESS ENGINE.WRITE BOTH NUMBERS I GIVE YOU 3 2 1 AND WRITE NUMBER 4 6 5 PUT NUMBER 321 ON TOP OF 465 THAT WILL BE SPARK PLUG WIRES LOCATION ON COILS.THEN ROUTE THEM TO THE CYLINDERS SPARK PLUGS.BESURE TO HOLD PAPER WITH NUMBERS I GAVE YOU NUMBERS STAND IN FRONT OF ENGINE SO YOU WONT MISLOCATE SPARK PLUG WIRES FROM COILS TO SPARK PLUGS.

Switch it with another and check if the miss follows the injector.
Also you should check for a voltage pulse at the missing cylinder injector connector.

sounds as thou thoses 2 clyinders are running rich either from excesive fuel aka bad injectors or drivability issues bad map sensor leaking intake ? need to scan ecm readings check all the sensors ? are you sure coil pack not failing ?

one coil should run two cylinders but they should either be under the plastic engine shroud or on dack of fire wall follow the plug wires back to the coil....r u sure its the coil and not a bad plug wire or bad plug

It is either a faulty fuel injector for cylinder 29try swapping injectors); or the coil module that sends signals to the individual coils..it is mounted inside the air cleaner housing., black in color, rectangular with a harness entering one side and exiting the other..

and this is the question i would have for my shop
where did those metal shavings go that fell into the cylinder that had the stripped spark plug hole ??
and how did they strip it in the first place??