Why doesn’t my Jimmy battery stay charged?

A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you may have a habit of leaving your car doors open and the lights on overnight. Stop in for a free battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.

What do you do with my old Jimmy battery?

We recycle it! Nearly 100% of all lead-acid batteries are recyclable.

How much will replacing my GMC Jimmy’s battery cost if I get a DieHard battery?

GMC Jimmy batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.

What is the average lifespan of a car battery?

The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.

Why is there white, crusty buildup on my Jimmy’s battery post?

The white, crusty stuff that can accumulate around Jimmy car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.

What do I do about corrosion on my Jimmy car battery?

Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.

Who carries Jimmy batteries near me?

Your local Firestone Complete Auto Care sells and installs Jimmy batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.

1986 GMC Jimmy Car Batteries

Get a New GMC Battery

Get a Battery for Your GMC Jimmy

Don’t let a dead battery stop you. Shop replacement car batteries for your 1986 GMC Jimmy at Firestone Complete Auto Care.

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The Right Battery Size for a 1986 GMC Jimmy

Need more info about GMC Jimmy batteries? Check the chart to find the right car battery size and cold cranking amps for your Jimmy.

Battery	Engine	Warranty		Cold Cranking Amps
75-2	V8/5.0L	Replacement 24 months	Performance months	650
78FT-2	V8/5.0L	Replacement 36 months	Performance months	800
78-AGM	V8/5.0L	Replacement 36 months	Performance months	740
34/78-4	V8/5.7L	Replacement 24 months	Performance months	800
75FT-3	V8/5.7L	Replacement 36 months	Performance months	700
78-AGM	V8/5.7L	Replacement 36 months	Performance months	740
75-2	V8/6.2L	Replacement 24 months	Performance months	650
75FT-3	V8/6.2L	Replacement 36 months	Performance months	700
78-AGM	V8/6.2L	Replacement 36 months	Performance months	740

BATTERIES
V8/5.0L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V8/5.0L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
V8/5.0L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/5.7L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
V8/5.7L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V8/5.7L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
V8/6.2L - Battery: 75-2 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 650
V8/6.2L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V8/6.2L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Buying a Replacement Battery for GMC Jimmy

Your Jimmy doesn't have an expiration date, but its battery does. Generally, car batteries last from three to five years. You want to replace your 1986 GMC Jimmy battery before it fails and leaves you stranded. Look out for symptoms of a faulty car battery. A sluggish engine start, a blinking battery or check engine light, bloated battery case, corroded battery posts, and subpar electrical performance can all signal that your battery is on its last leg.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. With computerized testing we can see how much charge is left in your battery. Stop by for a free battery test and, if needed, get your GMC Jimmy a replacement battery. Car batteries are only one of our many strong suits. Our expert technicians understand GMC service recommendations for Jimmy car batteries’ reserve capacities and cold cranking amps. Get help identifying the type and size of battery that fits your car perfectly, and schedule an appointment today for a quick car battery replacement.

Find the Right DieHard Battery for Your Jimmy

We know what’s best for your GMC Jimmy, which is why we only carry top-of-the-line replacement parts and batteries. Your Jimmy needs a reliable, durable and powerful battery in even the most extreme conditions. DieHard batteries shatter expectations using state-of-the-art advancements to satisfy the expanding power requirements of modern vehicles Don't call a DieHard battery ordinary. It's an extraordinary battery. Choose a DieHard battery for your GMC Jimmy and get behind the wheel with confidence. Why? Because your battery will perform when you need it. That’s why you should choose batteries from Firestone Complete Auto Care.

Making Your Jimmy’s New Battery Last

Got a new car battery installed in your 1986 GMC Jimmy? Congrats! Now, help it last longer and stay charged by caring for it from the get-go. Help extend your car battery’s life by limiting short trips, cleaning your battery posts, and avoiding radio and electronic component use when the engine is off.

Commonly Asked Jimmy Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a Jimmy-specific battery question, stop by your nearest store. Our expert techs have the answers you need.

Why doesn’t my Jimmy battery stay charged? A battery that won't hold a charge is almost as good as dead. It may be getting old. Or, you may have a habit of leaving your car doors open and the lights on overnight. Stop in for a free battery check at your favorite Firestone Complete Auto Care and learn more about your battery's charge.
What do you do with my old Jimmy battery? We recycle it! Nearly 100% of all lead-acid batteries are recyclable.
How much will replacing my GMC Jimmy’s battery cost if I get a DieHard battery? GMC Jimmy batteries can be affordable, especially when there's an available battery coupon. The best part is every DieHard battery comes with a free replacement warranty and extra coverage with DieHard Assurance.
What is the average lifespan of a car battery? The typical 12-volt car battery may last three to five years, depending on the type of battery, the driving conditions, and how well the battery is maintained.
Why is there white, crusty buildup on my Jimmy’s battery post? The white, crusty stuff that can accumulate around Jimmy car battery terminals is called corrosion. It is caused by a chemical reaction between the battery acid and the air, which creates a white, powdery substance that can build up on the terminals over time. Corrosion can interfere with the flow of electricity between the battery post and the car's electrical system, sometimes leading to poor electrical performance, difficulty starting, and even premature battery failure.
What do I do about corrosion on my Jimmy car battery? Regularly inspect the terminals and clean them with a mixture of baking soda and water, a wire brush, and a rag. Disconnect the battery cables before cleaning to help avoid the risk of electrical shock. Always reference and follow the instructions in your vehicle owner’s manual prior to disconnecting the battery cables.
Who carries Jimmy batteries near me? Your local Firestone Complete Auto Care sells and installs Jimmy batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.