Why does the check engine light in my Grand Prix turn on when I start my car?

It's okay if your check engine light comes on when you first start your vehicle. It’s just your Grand Prix firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.

Why does my Pontiac engine sound different?

Strange under-the-hood noises can point to problems within your Pontiac Grand Prix engine. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage a Pontiac engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Pontiac Grand Prix engine?

Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.

Is it okay to put water in 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 the engine in my Grand Prix to suddenly stop?

If your Grand Prix 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 fixes 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.

Reliable Repairs for 1986 Pontiac Grand Prix Engines

Learn about

1986 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.

V6/3.8L

V6/4.3L

V8/5.0L

Pontiac Grand Prix Repairs and Services

Stuff wears out. Even your Pontiac Grand Prix’s engine parts and components will change. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 1986 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. That might be why you bought it in the first place. 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 1986 Pontiac Grand Prix engine repairs. That's when it's time to head to Firestone Complete Auto Care. We've serviced more than 500 million vehicles since 1926, and our technicians know Pontiac Grand Prix engines. Schedule a courtesy inspection at the first sign of engine trouble. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

My 1986 Pontiac Grand Prix Check Engine Light Is On

As soon as your Grand Prix check engine light turns on, it’s time to get an expert’s opinion. A check engine light that’s flashing or steadily illuminated could point to problems with your car’s ignition, Possible causes can include a failing oxygen sensor, damaged spark plug, a problem with your catalytic converter, or a leaking engine vacuum, to name a few possible causes. Stop by your local Firestone Complete Auto Care to get your Grand Prix issues diagnosed and we’ll figure out why that check engine light is giving you grief. engine pinging noises, oil leaks, or engine misfiring.

1986 Grand Prix Engine Services

When your Pontiac Grand Prix engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We make recommendations, but you make the final decision. 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, motor oil seal, ignition coil, or other parts.

Engine Q&A 1986 Pontiac Grand Prix

Why does the check engine light in my Grand Prix turn on when I start my car? It's okay if your check engine light comes on when you first start your vehicle. It’s just your Grand Prix firing up its circuits. The dash light shouldn't stay on. If it does, you might want to bring your vehicle in for service.
Why does my Pontiac engine sound different? Strange under-the-hood noises can point to problems within your Pontiac Grand Prix engine. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a Pontiac engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your Pontiac Grand Prix engine? Certain driving habits can hurt your engine. These habits include driving on an empty fuel tank, revving your engine while the vehicle is in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Steer clear of these habits to help protect engine performance and efficiency.
Is it okay to put water in 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 the engine in my Grand Prix to suddenly stop? If your Grand Prix 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 fixes 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.