Coolant resevoir going down?

[Atreyus]

Could it be a leak? Going to take it in a shop tomorrow and find out but I'd appreciate if anyone can chime in and help me out. thanks! Replaced water pump, thermostat, upper and lower hoses, rear heater lines are fine, new radiator. Last time took it in they mentioned something about freeze plugs, but not sure.

 

[cj80cruiser]

I dont know...hard to say since i recall you replacing all these parts for your over heating problem

Hate to point out the obvious but did you see if your reservoir was leaking?

 

[toyotaoutlaw]

Could it be a leak? Going to take it in a shop tomorrow and find out but I'd appreciate if anyone can chime in and help me out. thanks! Replaced water pump, thermostat, upper and lower hoses, rear heater lines are fine, new radiator. Last time took it in they mentioned something about freeze plugs, but not sure.

what about the radiator cap?? did that get replaced?? if the old one is still on you might want to think about putting a new one on if it did not get replaced. i would think since everything else was replaced that would have been to but its small and could have got over looked. if that is not working properly that can contribute to low fluid in the resevoir. just thought i would shoot that out there

 

[98OzarksRunner]

Hate to suggest the worst case, but it might be a head gasket. Any milky looking oil? Any white smoke from the tailpipe? I'd do a compression check.

 

[Atreyus]

Radiator cap was changed and there are no signs of a bad head gasket, no milky oil or white smoke from exhaust, no loss of power or stuttering.

 

[toyotaoutlaw]

Radiator cap was changed and there are no signs of a bad head gasket, no milky oil or white smoke from exhaust, no loss of power or stuttering.

look around the thermostat. make sure the bolts are tight. i just did an engine rebuild on a ford v-8 and it kept coming up low on radiator fluid. i checked everything possible and it was barely leaking at the thermostat. i replaced the gasket and it fixed. i mean it showed vary little sings of leaking and it was making the radiator low