When you put your foot on the clutch do you get this squeal if so its the thrust bearing you will need a clutch kit

I need to know what car it is do you have fuel and compression it could be a ignition fuse crankshaft sensor need more info about what car you have

I would try a torque socket and hit this into the  sparkplug hole using a hammer use a extension bar a rachet and undo it it may be best to get the engine hot and soak the spark plug with wd40

Do you have a engine management light on if so you need to find if theres a fault in the E.C.you system it maybe electrical like the idle control valve. Does it cut out when you get to the end of ia junction for example or when the revs are low does the engine surge? … Read more