Hi, i have a fiat bravo and noticed the temp would be one marker below the half way point on the dial and then every know and then would go down to the next marker (roughly) and then work its way back up?
my thoughts were that the thermostat is sticky and opens realy quickly when its gets to the running temp and all that cool coolant in the rad comes gushing in and makes the coolant temp go down more than it should.
i have used a coolant flush, drained it and it was FILTHY so i done it again, then again untill the water was clear ish.. and it seems to be better, doesnt do it as much and not realy at all on motor way which was when i noticed it more.
im going to replace the thermostat tomorrow.
first thought it was the head gasket but plugs, oil seem fine and doesnt apear to be loosing coolant?
if any one can throw some advise my way or let me know if they have had similer problems and if you sorted it...
thanks for taking the time to read.
my thoughts were that the thermostat is sticky and opens realy quickly when its gets to the running temp and all that cool coolant in the rad comes gushing in and makes the coolant temp go down more than it should.
i have used a coolant flush, drained it and it was FILTHY so i done it again, then again untill the water was clear ish.. and it seems to be better, doesnt do it as much and not realy at all on motor way which was when i noticed it more.
im going to replace the thermostat tomorrow.
first thought it was the head gasket but plugs, oil seem fine and doesnt apear to be loosing coolant?
if any one can throw some advise my way or let me know if they have had similer problems and if you sorted it...
thanks for taking the time to read.