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 , 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 , 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