Why won't my Sonoma battery stay charged?

A car battery that needs to be jump-started every time is as good as dead. The battery may be too old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop in for a free battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.

What do you do with my old Sonoma battery?

We’ll recycle your car battery for you!

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

You can find affordable Sonoma 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 do car batteries 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.

What is the white, crusty substance accumulating on my Sonoma’s battery post?

If you notice white, crusty stuff around the battery terminals of your Sonoma, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your Sonoma’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.

How do I remove corrosion from my Sonoma car battery?

You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Sonoma owner's manual to learn how to disconnect the battery cables. After disconnecting the cables, use a mixture of water and baking soda, a wire brush, and a rag to carefully clean the terminals.

Where can I purchase Sonoma batteries near me?

At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install Sonoma batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.

Car Batteries for 1991 GMC Sonoma

Get a New GMC Battery

Get a Battery for Your GMC Sonoma

Don't let a failing battery slow you down. Shop replacement batteries for 1991 GMC Sonomas today and schedule a quick installation at Firestone Complete Auto Care.

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Battery Size & Replacement for 1991 GMC Sonoma

Not sure what battery to get for your GMC Sonoma? Check the chart to find the right car battery size and cold cranking amps for your Sonoma.

Battery	Engine	Warranty		Cold Cranking Amps
78-1	V6/2.8L	Replacement 24 months	Performance months	700
75FT-3	V6/2.8L	Replacement 36 months	Performance months	700
78-AGM	V6/2.8L	Replacement 36 months	Performance months	740
78-1	L4/2.5L	Replacement 24 months	Performance months	700
78FT-2	L4/2.5L	Replacement 36 months	Performance months	800
78-AGM	L4/2.5L	Replacement 36 months	Performance months	740
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
V6/2.8L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
V6/2.8L - Battery: 75FT-3 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 700
V6/2.8L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
L4/2.5L - Battery: 78-1 - Warranty: Replacement 24 months, Performance months - Cold Cranking Amps: 700
L4/2.5L - Battery: 78FT-2 - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 800
L4/2.5L - Battery: 78-AGM - Warranty: Replacement 36 months, Performance months - Cold Cranking Amps: 740
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 Sonoma Car Batteries

You can pretty much drive your GMC Sonoma until you don't want to anymore. But your Sonoma's battery? Don't count on it to last forever. Generally, car batteries last from three to five years. Don’t get stranded by your Sonoma’s car battery. Replace it regularly instead! Watch for signs that your current battery is getting too old or too weak. A lagging starter, an illuminated check engine light or battery signal, bloated battery case, corrosion-covered posts, or dim headlights can all signal that your battery needs attention.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Drop in for a free battery check and, if needed, a replacement battery for your 1991 GMC Sonoma. Car batteries are only one of our many strong suits. Our technicians are well-acquainted with GMC’s service specs for Sonoma battery cold cranking amps and reserve capacity. Get help figuring out the battery size that fits your car perfectly, and schedule a fast car battery replacement at your earliest convenience.

Is There a DieHard Battery for Sonomas?

Your GMC Sonoma deserves the best, which is why we carry just that. Your Sonoma needs a reliable, durable and powerful battery in even the most extreme conditions. DieHard batteries shatter expectations using the latest innovative technology to fuel the growing power requirements of new vehicles. They're no ordinary battery, they're extraordinary. Choose a DieHard battery for your GMC Sonoma and drive with confidence knowing that your battery will perform when you need it. That's the kind of battery we deliver.

Making Your Sonoma’s New Battery Last

Did you recently have a new 1991 GMC Sonoma car battery installed? Good thinking! You can give your new battery a head start with proper care and attention. flipping the dome lights and headlights off when exiting the car, cutting back on unnecessary short trips, keeping the battery posts corrosion-free, and avoiding radio and electronic component use when the engine is off.

Answers to Your Sonoma Car Battery Questions

Firestone Complete Auto Care has answers to your top car battery questions. If you have a Sonoma-specific battery question, pay us a visit. Our technicians are happy to help.

Why won't my Sonoma battery stay charged? A car battery that needs to be jump-started every time is as good as dead. The battery may be too old. Or, you may have a habit of leaving your car doors open and the cabin light at night. Stop in for a free battery check at your local Firestone Complete Auto Care to learn more about the state of your battery.
What do you do with my old Sonoma battery? We’ll recycle your car battery for you!
How much will replacing my GMC Sonoma’s battery cost if I get a DieHard battery? You can find affordable Sonoma 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 do car batteries 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.
What is the white, crusty substance accumulating on my Sonoma’s battery post? If you notice white, crusty stuff around the battery terminals of your Sonoma, it's likely corrosion. A chemical reaction between battery acid and the air can create a white, powdery substance that builds up over time on the terminals. This buildup can interfere with the electrical connection between the battery and your Sonoma’s electrical system, potentially leading to poor performance, difficulty starting, and other issues.
How do I remove corrosion from my Sonoma car battery? You can help prevent or get rid of corrosion by regularly inspecting and cleaning your battery terminals. Before cleaning your battery, see your Sonoma owner's manual to learn how to disconnect the battery cables. After disconnecting the cables, use a mixture of water and baking soda, a wire brush, and a rag to carefully clean the terminals.
Where can I purchase Sonoma batteries near me? At Firestone Complete Auto Care, we make it easy to get a new car battery. Our stores sell and install Sonoma batteries, and our Firestone Direct mobile vans can even come to you for added convenience. Check out our mobile battery services to learn more.