1991 Buick Riviera "ac working replacing thermostat battery" Questions

...working My grandson left the dome light on all night and ran the battery down I put a new battery in and now the ac and the heat switches won't work. I checked all fuses and relays all are good. When ...

...thermostat, the fan control module, the temperature sensor, and the fan relay and still the fans will only turn on when the AC is on. Any suggestions? Install toggle switch from battery to fans and ...

AC is selected. Hope this helps! I had this same problem with my Saturn.  Temp gauge at zero. Airconditioning not working and both radiator fans on all the time.  I tried the temp sensor and

thermostat, fuel filter. Still doesn't work. Hesitates when gas is pressed instead of eased, starts almost like battery is going to die, hard starts and gauges shoot up when starting. Leaking radiator

ac see what it would do but nothing ar all happends never worked any way. the only thng left is thermostate. don't see how it would effect the electronics but not a mechanic so can any one help? i

...ac blows great what can be the problem replace water pump already and the thermostat The fans have there own temp control switch. This switch is electrically controlled. Find it and check for bad ...

ac on.Check coolant sensor,and thermostat can be stuck closed and the sensor will never read the hot water. You have to bring it to your garage/mechanic. They will hook the car to a scope and read off

...working take this car to a garage and have the alternator replaced. it is bad... get it tested. many auto parts stores test for free. most likely a bad alternator or a fuse popped for the Alternator ...

...AC on the truck begins to overheat..Please Help OVERHEATING Physically look in the radiator under the cap for coolant level, and check the valve in the cap for sticking. If air is present in the ...

...thermostat now ac wont work 2003 trailblazer heat stays on The thermostat is under the alternator. Remove Neg. battery cable, positive cable from alternator. Remove Alternator, drain radiatif it ...