I was wondering ...What size socket do I need to remove the coolant sensor from my 1990 Toyota Corolla DX?

SOURCE: Car/1990 Toyota Corolla

If Biggy1 has described it right, I think when you remove the WIRE to the spark plug ( not the plug itself ) and oil jumps out, there is a cylindrical seal that needs replacing and one does not need to even remove the cylinder head.
I have the same problem with my corolla. On the other hand if Biggy meant when removing the SPARK PLUG oil was on the contacts....

SOURCE: Removal of valve cover

30 millimeter socket

SOURCE: what socket or drive is required to remove the front brake rotor

The 30mm axle nut does NOT get removed to remove a rotor. The 17mm caliper bolts must be removed to removed the caliper, and the rotor will come right off.

ZJ Limited

• 17989 Answers
• Posted on Jun 28, 2010

SOURCE: Where is the coolant temp sensor on a 2001 toyota

Usually near the thermostat housing;



Hope heps.

Testimonial: "Perfect answer :)"

SOURCE: I have a 1998 toyota corolla and need to replace

Follow the hose from the bottom of the radiator to the point where in reaches the engine block. That's where the thermostat is located and the Engine Coolant Temperature switch is there too.