In addition when I first start it the idle is sometime too high and lowers after running for a few minutes. And sometimes it cuts off while I‘m driving either idle or accelerating. I start it back up and it runs. WHAT IS GOING ON WITH MY BABY?
Why did you replace the radiator? The high idle on start up is usually do to the cold start idle adjustment.Cutting out can be too many things but i would start with a tune up. Take it to a repair shop and have them do a diagnostic test on it for the check engine light.
There is no sensor for the radiator on this vehicle that turns the check engine light on. You do have a coolant level sensor but that turns on a separate light. It also does not have a Carburetor. Auto zone will not be able to scan your vehicle as it is a OBD 1 system and they only do ODB 2 systems. This vehicle is fuel injected and a 93 Buick could have a 3.1L or a 3.8L engine. You need to take the vehicle in to a repair facility to have them scan the vehicle or if you are not mechanically challenged you can buy a jumper tool and scan it your self. the tool will come with directions on how to jump the ALDL connector under the dash. Them you will need a book on your make model and year as GM codes are different for year and models made before 1996. After 1996 all codes and ALDL connectors are the same for each make and model. Getting the code still means you have to run the flow chart and do the repair. Just because you get a code you don't just replace the part. You need to confirm it is defective and not just working wrong because of some other component.
The radiator has a sensor attached to it. When the new one was installed the sensor was either not connected or connected wrong. Have it serviced. As for your idle - the timing is of on the carburetor. Have the car serviced.
