why do i lose normal engine temp while driving on 2000 Volkswagen GTI

if my gti is idleing it runs 195 when i drive the temp goes back to cold

by in Billerica, MA on February 04, 2012
1 answer 1 comment
ANSWER by on February 04, 2012
It sounds like the thermostat is stuck open. You will need to replace this first. I recommend using a thermostat from VW, not an aftermarket one. Also make sure the electric cooling fan is cycling and not just stuck as this will also lower the operating temperature.
COMMENT by on February 04, 2012
thanks for your advice also if you can answer another question ? it acts like the shock mount is broke but i was told that they were both mount and shock was just replaced do you know what else would cause it