Why won’t my Syclone battery hold a charge?

A car battery that needs to be jump-started every time is as good as dead. The battery may be too old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop in for a free battery check at your favorite Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my dead Syclone battery?

We recycle it, taking care of both your car and the Earth.

How much do DieHard batteries cost for your GMC Syclone?

You can find affordable Syclone batteries by using one of our car battery coupons, when available. Plus, every DieHard battery comes with extra coverage thanks to DieHard Assurance and a free replacement warranty.

How long can I expect my car battery to last?

You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.

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

The white, flaky stuff that can build up around your Syclone’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your Syclone, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.

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

Regularly inspecting and cleaning your battery terminals will help keep your Syclone’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.

Who sells Syclone batteries near me?

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

1991 GMC Syclone Batteries

Get a New GMC Battery

Get a Battery for Your GMC Syclone

The middle of nowhere is the wrong place to have a weak battery. Shop replacement batteries for 1991 GMC Syclone today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 1991 GMC Syclone

Researching battery replacements for your GMC Syclone? Use the following chart to find information on GMC Syclone battery size and cold cranking amps.

Battery	Engine	Warranty		Cold Cranking Amps
34/78-4	V6/4.3L	Replacement 24 months	Performance months	800
75FT-3	V6/4.3L	Replacement 36 months	Performance months	700
78-AGM	V6/4.3L	Replacement 36 months	Performance months	740

BATTERIES
V6/4.3L - Battery: 34/78-4 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 800
V6/4.3L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V6/4.3L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740

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Shopping for GMC Syclone Car Batteries

Sadly, your GMC Syclone won't last forever. Neither will its battery. Generally, car batteries last from three to five years. Don’t get stranded by your Syclone’s car battery. Replace it regularly instead! Look out for symptoms of a faulty car battery. A sluggish engine start, an illuminated battery or check engine light, swollen battery case, corrosion-covered posts, or weak lights may all indicate that your battery needs attention.

Or, you can get a complimentary battery check at your nearest Firestone Complete Auto Care. With best-in-class tools we can tell you how much "life" is left in your battery. Visit us for a complimentary battery check and, if necessary, a battery replacement to help keep your 1991 GMC Syclone running! Car batteries are one of our many specialties! Our technicians are well-acquainted with GMC’s service specs for Syclone car batteries’ reserve capacities and cold cranking amps. Get help choosing the battery size that matches your vehicle, and schedule an appointment today for a quick car battery replacement.

Firestone Has DieHard Batteries for Syclones

We know what’s best for your GMC Syclone, which is why we carry just that. You need a reliable, durable and powerful battery that can handle most extreme environments and weather conditions. DieHard batteries go above and beyond using state-of-the-art advancements to meet the increasing power requirements of new vehicles and their accessories. A DieHard battery isn't an ordinary car battery. It's extraordinary. Choose a DieHard battery for your GMC Syclone 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 Syclone’s New Battery Last

Did you recently have a new 1991 GMC Syclone car battery installed? Great job! 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, keeping the battery posts corrosion-free, and avoiding radio and electronic component use when the engine is off.

Commonly Asked Syclone Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a battery question that's unique to your GMC Syclone battery, stop by your nearest store. Our technicians are happy to help.

Why won’t my Syclone battery hold a charge? A car battery that needs to be jump-started every time is as good as dead. The battery may be too old. Or, you’ve been leaving the doors slightly open and the lights on overnight. Stop in for a free battery check at your favorite Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my dead Syclone battery? We recycle it, taking care of both your car and the Earth.
How much do DieHard batteries cost for your GMC Syclone? You can find affordable Syclone batteries by using one of our car battery coupons, when available. Plus, every DieHard battery comes with extra coverage thanks to DieHard Assurance and a free replacement warranty.
How long can I expect my car battery to last? You can usually get three to five years out of your car battery. However, battery type, how well you maintain your battery, and your driving habits can all affect your battery’s lifespan.
Why is there white, crusty buildup on my Syclone’s battery post? The white, flaky stuff that can build up around your Syclone’s battery terminals is known as corrosion. Acid leaking from your vehicle’s battery post can have a chemical reaction with the air, leading to an accumulation of the white, powdery substance over time. Corrosion can affect the flow of electricity between your battery and the electrical system in your Syclone, possibly causing issues with electrical performance and starting. If left unaddressed for long enough, it may even cause your battery to prematurely fail.
What do I do about corrosion on my Syclone car battery? Regularly inspecting and cleaning your battery terminals will help keep your Syclone’s electrical system running smoothly. Before cleaning, reference your owner’s manual for instructions on how to disconnect the battery cables. Once the cables have been disconnected, gently clean the terminals with a mixture of water and baking soda, a wire brush, and a rag.
Who sells Syclone batteries near me? Your local Firestone Complete Auto Care sells and installs Syclone batteries in your neighborhood. Our Firestone Direct mobile vans can even come to you and do it! Learn more about mobile battery services.