I have a coolant leak in a 1996 Olds Ciera that is in behind the thermostat body. Anyone help with this one?
- SilverstangLv 71 decade agoFavorite Answer
You have to change either the gasket to the thermostat, or its called an O-ring that goes behind there. That piece needs replacing. Apparently someone had swapped in a new thermostat, and didn't get a new seal, or gasket, or worse yet they didn't tighten the bolts properly. Good luck.
- bill loomerLv 41 decade ago
actually, this can happen when the thermostat is stuck. the coolant has nowhere else to go sometimes. a new thermostat and gasket will solve it in any case.
don't use the liquid gasket, it won't be needed. make sure you do not over-tighten the bolts when you put it back on. most every leak in plumbing is due to over-tightening.
- Anonymous1 decade ago