Having problems with your 1991 Buick LeSabre ?
I can't find the radiator drain plug, where is it?
Should be on the bottom end, u cpould take the hose pipe off instead. When refilling make sure u have the heater open so that u have a complete flow thru all the engine and no air bubbles. Don't forget the coolant. cheers
Repair Help & Product Troubleshooting for 1991 Buick LeSabre
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.