Thermostat Problem Squared!?!?

PunishmentMMA

Registered User
A while ago I posted and asked for some help with my 90 SC Auto and it's running, damn close to the H.

I replaced the thermostat and the temp sens. unit and all ran well until today when it started to run just outside the M in NORM...

I live in New England and am using my heat, but not heat is coming out, just cool/luke warm...

No signs of a head gasket problem either...

I know thermostats are after market so did I just happen to get a crappy one and have to replace it again or could it be something else???

thanks guys

Don Salzarulo

p.s. anyone know where I can order some custom seats for the SC???
 
Sounds like the coolant level is low in the rad or you have air in the system, either of those things will cause the heater to do that. Of coarse that only applies once you make sure the air mixing door is working properly and not hanging in the AC position.
 
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