Why does the check engine light come on when I start my Sonoma?

It's okay if your check engine light comes on when you first start your vehicle. This is just your Sonoma testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why is my GMC Sonoma making engine noise?

Unusual noises can signal a problem with your GMC Sonoma engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC Sonoma engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I put water in my GMC Sonoma radiator?

While it’s not recommended, you can use water in your Sonoma radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.

What could cause my Sonoma engine to suddenly stop?

If your Sonoma car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.

Who repairs GMC Sonoma engines?

Your local Firestone Complete Auto Care offers GMC Sonoma engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

Engine Repairs for Your 2003 GMC Sonoma

Learn about

2003 GMC Sonoma Trim Options

Select your GMC Sonoma trim level to learn more about GMC-recommended engine repair. Even GMC Sonoma parts will get older and change.

L4/2.2L

V6/4.3L

2003 GMC Sonoma Repair

Nothing stays the same forever. Even your GMC Sonoma's many parts and pieces. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 2003 GMC Sonoma.

We Care for GMC Sonoma Engines

The GMC Sonoma is respected for its reliability. You may have even been thinking about that when you bought it. Even so, pieces and parts can break down over time. Things can go sideways sometimes. If the unexpected strikes, you may search the internet frantically for quick and affordable 2003 GMC Sonoma engine repairs. That's when it's time to head to Firestone Complete Auto Care. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service GMC Sonoma engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Check Engine Light on 2003 GMC Sonoma

An illuminated check engine light on your GMC Sonoma is one of the first signs it's time to 'brake' for engine service. A check engine light that’s flashing or steadily illuminated could point to problems with your fuel injection, Causes may include a faulty oxygen sensor, bad spark plug, a problem with your catalytic converter, or a leaking engine vacuum, to name a few potential sources. Stop by your local Firestone Complete Auto Care to get your Sonoma issues diagnosed and we’ll figure out why that check engine light is giving you grief. rattling sounds, essential fluid leaks, or engine misfiring.

2003 Sonoma Engine Services

When your GMC Sonoma engine needs repairs, our technicians will provide you with a thorough explanation beforehand. We never do any work without your sign-off. If a service can wait, we’ll make sure you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to give you all the details you need to make an informed decision about your engine repairs. Choose Firestone Complete Auto Care for GMC Sonoma engine repairs and you can feel good knowing that we only use GMC-compliant replacement parts such as the serpentine belt, oil gasket, sensors, or other parts.

Questions About 2003 GMC Sonoma Engines

Why does the check engine light come on when I start my Sonoma? It's okay if your check engine light comes on when you first start your vehicle. This is just your Sonoma testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why is my GMC Sonoma making engine noise? Unusual noises can signal a problem with your GMC Sonoma engine. Knocking or tapping could be a symptom of low oil. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage a GMC engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your GMC Sonoma engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I put water in my GMC Sonoma radiator? While it’s not recommended, you can use water in your Sonoma radiator in emergencies. Normally, you should only use a 50/50 mix of coolant and water or a pre-mixed coolant. However, if you are completely out of coolant and must continue driving, it’s better to have water in your coolant reservoir than nothing.
What could cause my Sonoma engine to suddenly stop? If your Sonoma car engine suddenly stops, it could be due to overheating, low fuel, a faulty ignition system, sensor problems, electrical system trouble, or mechanical issues.
Who repairs GMC Sonoma engines? Your local Firestone Complete Auto Care offers GMC Sonoma engine repair. Schedule an appointment today at one of our thousands of locations nationwide!