over cooling/not heating enough

[Lg310]

ok so i will let my 87 warm up and the farthest it will go is a couple of degrees lower than half. before it would warm up too half way and it would remain there unless it was cold and i was on the freeway. so my question is could it be a faulty fail safe thermostat or can it be i got bubbles in my cooling system or is that normal? any input will be helpful thanks

[Dr_Snooz]

Definitely thinking it's the thermostat.

[SkateK610]

Mine was like that, bleed the cooling system, make sure ALL the air is out

[conozo]

Its normal for the temperature gauge to be at half way or a few millimeters below half when completely warmed up. I think if your thermostat failed it would be at a quarter or something. You can always check the thermostat, make sure there is enough coolant and good coolant in there, then bleed the air out.

Edit: also make sure that your thermostat has the small hole in it to help bleed the system. The hole should be positioned so its at the top when installed.

[Lg310]

Thank you very much for the input ill check that right away thanks