So I have all the parts needed to service the Focus. Years ago when I had an XR2i I just tightened spark plugs etc until they were hand tight. Is this still ok with newer cars or would people invest in a torque wrench?

I also want to take the Idle Control Valve off to clean, is there a good place to get torque values online for various parts?

Thanks in Advance!

To be honest, any one with some mechanical savvy will know roughly by feel when a bolt or plug is tight enough. I never use a torque wrench for applications such as plugs, general nuts and bolts, wheel nuts etc.

Precision engine work, hub nuts etc then yes I will.

I'm with Stef - guesstimate by hand - you've done it before without problem.

Although, I do torque my wheel nuts

Thanks! Will report back :)