Why does my Grand Prix’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Grand Prix testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why does my Pontiac engine sound different?

Unusual noises can signal a problem with your Pontiac Grand Prix engine. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage my Pontiac Grand Prix engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I add water to my Pontiac Grand Prix radiator?

While it’s not recommended, you can use water in your Grand Prix 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 can cause a Grand Prix engine to suddenly stop?

Reasons your Grand Prix car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who repairs Pontiac Grand Prix engines?

Your local Firestone Complete Auto Care fixes Pontiac Grand Prix engines. Book an appointment today! We have thousands of locations across the country.

1991 Pontiac Grand Prix Engine Repair

Learn about

1991 Pontiac Grand Prix Trim Options

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

L4/2.3L

V6/3.1L

V6/3.4L

Pontiac Grand Prix Repairs and Services

Nothing stays the same forever. Even your Pontiac Grand Prix'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 1991 Pontiac Grand Prix.

We Care for Pontiac Grand Prix Engines

Pontiac Grand Prix drivers trust that their Grand Prix will take them near and far. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 1991 Pontiac Grand Prix engine repairs. That’s where Firestone Complete Auto Care comes in. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Pontiac Grand Prix engine will be in good hands. 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.

Illuminated Check Engine Light on 1991 Pontiac Grand Prix

As soon as your Grand Prix check engine light turns on, it’s time to get an expert’s opinion. A steady or flashing check engine light could signal a serious issue with your or emission system, and it won’t go away by ignoring it. Causes may include a faulty oxygen sensor, bad spark plug, a problem with your catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Bring your Grand Prix to Firestone Complete Auto Care to get computerized diagnostics and we’ll figure out why that check engine light is giving you grief. Other signs it's time for Pontiac Grand Prix engine service might include essential fluid leaks, or engine misfiring.

Engine Repairs for Your 1991 Grand Prix

If your 1991 Pontiac Grand Prix needs engine repair, our expert techs will let you know what needs to be done and why before they get started. We don't start working until we have your approval. 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 Pontiac Grand Prix engine repairs and you can drive easy knowing that we use Pontiac-approved parts and fluids — timing belt, valve guide seal, sensors, or other parts.

1991 Pontiac Grand Prix Engine Q&A

Why does my Grand Prix’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Grand Prix testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why does my Pontiac engine sound different? Unusual noises can signal a problem with your Pontiac Grand Prix engine. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing can be traced back to a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage my Pontiac Grand Prix engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, flooring the gas pedal while the car is in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I add water to my Pontiac Grand Prix radiator? While it’s not recommended, you can use water in your Grand Prix 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 can cause a Grand Prix engine to suddenly stop? Reasons your Grand Prix car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who repairs Pontiac Grand Prix engines? Your local Firestone Complete Auto Care fixes Pontiac Grand Prix engines. Book an appointment today! We have thousands of locations across the country.