solenoid repair

Hi Guys, I am looking for some advice. I am getting some issues with my auto gearbox, 1) The car jerks when shifting up thru the gears, however there are no problems when downshifting. Jerk as in hard/harsh engagement of the new gear. 2) Once in a while, there seems to be clutch slippage...

If you turn the key and hear a click or nothing at all, it may not be the back of the ignition key switch. The same switch and click happens when the contacts in the Denso starter motor solenoid wear out. The pic attached to this post shows how the copper ring and the copper contacts on the...