AskPatty Certified Female Friendly Logo
I bought a battery for my 91 Buick Century. What steps do I follow to take the old one out and put the new one in safely and correctly? I have most tools but no experience.

Answers from the Automotive Experts

Lori Johnson, Owner and Instructor at Ladies Start Your Engines Dear Gloria, You always want to remove the negative battery cable first. Loosen the nut, usually a 10 mm, until you can move the cable on the post. This could be the most difficult part, removing the cable from the battery. The nut is used as a way to tighten the cable like a clamp to hold it firmly on the battery post. You may need to pry the cable end open once you loosen the nut. Fully remove and place the negative battery cable away from the battery post. You want to make sure it doesn't have a chance to touch the post or there will still be a connection to the battery. Once you've removed the negative cable, then remove the positive cable. You should be able to find the Positive and Negative signs on the battery so that you know which is which. Most batteries have a protective cover over the positive cable. Once you've removed both cables, remove the battery hold down bar and carefully lift the battery out of the vehicle. It will be heavy, so be careful. Put the new battery in, re-install the battery hold-down bar. Connect the positive cable first and tighten the nut. Install the negative cable and tighten the nut and you're good to go. I always write down my radio stations before I replace the battery because you'll have to re-program them in after the loss of power. Hope this helps. Lori Johnson

Contribute to this question:

blog comments powered by Disqus

Related Buick Century FAQs

  • Where is the low side port on a 2004 Buick Century? Also what level am I looking for on ... Read More
  • My car runs just fine most the time and recently it just turns off randomly after 15 mins ... Read More
  • how do I change the courtesy light above the back doors they push on and push off Read More
  • I just bought a car that has been sitting for a year. I open the radiator and the fluid ... Read More
  • Hi & Thank you, ok blower fan for heat not working took blower off FOUND THE DUCT WORK ... Read More
  • Our Buick is leaking in the rear right passenger floor board when it rains. This started ... Read More
  • I have a 1998 Buick Park Avenue my heat is not working blower not working . Defrost is ... Read More
  • Got a 1 hr check over done prior to selling car. States oil leaks at oil pan area and ... Read More
  • I have a 1987 buick century 4 cylander and need to know what the firing order is? Read More
  • I have a line hanging under my car. Its in the back on the passenger side. Its old and ... Read More

Need Car Advice?

Ask The Experts!

Looking for a New or Used Car?

Search for our Certified Female Friendly® Car Buying Marketplace locations

Help Our Charities