15l

When I shift first gear and releasing clutch and pressing slightly gas pedal (like always), on one point car's wheels start to spin enormously fast. On other gears it is normal. I suspect it is maybe something with injection? Air intake filter is clean. Or maybe it is something to do with clutch...

I need to change the sparkplugs but I don't know how to remove the rubber caps on the top of the engine.

My battery light was lighting on and off...so I asked the mechanic to see if its the alternator or battery...anyways he replace the alternator and gave me an oil change which is fine...but when I asked him for price it ended up to be $440 labour and tax included...is this a fair price?

Engine electric fan running at low speed when compressor engaging.

* Toyota Echo 1.5L '04 * compressor on/ engaged * elect fan run @ low speed, * but rpm stay the same when the compressor disengage. Is it normal or is it the sign of having receiver dryer blocked? Or sign of something else?