Locating a heater core is easy, removing is not. The heater core will have two hoses going through the firewall to it. It will me mounted inside that big black plastic box underneath the dash on the passengers side of the vehicle. They mount in many different ways but you need to open it up to get to it.
Probably a worn-out or clogged heater core.
a 1991 buick skylark has 4" speakers in the dash and 6x9's in back
how do you replace a ignitionswitch tumbler 1991 buick skylark
The thermostat on a 1991 Buick Skylark is located near the engine. To find the thermostat, follow the top radiator hose directly to the thermostat.
I am having the same problem and I WA told it was the heater core. I am going to give that a shot. Autozone has them for $30.00
where does a clutch relay seleniod go in at on a 1991 buick skylark
I'd say about 2.5 tons.
If it has a coolant tank, that's the "cap".
You can find the 1991 Buick Skylark radiator drain plug on the bottom of the radiator. The radiator drain plug will be in the center of the radiator bottom.
Under dash with fuses. Very hard to see.
The PVC valve for a 1991 Skylark should be located on the top of the valve cover. It is a plug in type, twist and pull to remove.
Either a 2.3/2.5 4cylinder or a 3.0 V6