My 2002 subaru wrx temp goes up a then dwn to
My 2002 subaru wrx temp goes up then dwn to normal..it usually happens while in idle for like a less than a min..then it runs normal after driving..
Cars & Trucks - Subaru - Impreza - 2002 Subaru Impreza
Answers & Comments
Replace your thermostat...Thats usually the problem when this occurs....Goodluck...
That^. Sticking thermostat. If you look at a thermostat it's a little wax pellet that expands when hot enough to open the valve (and circulate fluid through the radiator). Sometimes they stick for whatever reason (contaminants, corrosion, wear and tear, manufacturer defect)