I have a 2002 Pontiac Sunfire and the low coolant light came on ?

How much does one of those cost to rent ?

Autozone has it on their rental tool program>>Cooling System Test Kit, Part Number: 27065 and is $119.95 plus tax. You use it all you want to,take it back when finished with it and they refund all your money back,so it's really free. You are actually paying what it would cost to buy it,but as long as you return it within 90 days you get your money back,just don't keep it over 90 days because it then belongs to you and they keep your money.