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

Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.

Are Pontiac Bonneville engine noises bad?

Unusual noises can signal a problem with your Pontiac Bonneville engine. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. 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 Bonneville engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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 put water in my Pontiac Bonneville radiator?

It’s not recommended you put water in your Bonneville radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.

What could cause my Bonneville engine to suddenly stop?

Your Bonneville car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.

Who can repair my Pontiac Bonneville engine?

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

Reliable Repairs for 1990 Pontiac Bonneville Engines

Learn about

1990 Pontiac Bonneville Trim Options

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

V6/3.8L

Pontiac Bonneville Repairs and Services

Stuff wears out. Even your Pontiac Bonneville's many parts and pieces. We’re here to help when something stops working. Select a service or repair below to learn more about what we can do for your 1990 Pontiac Bonneville.

We Know Pontiac Bonneville Engines

The Pontiac Bonneville is respected for its reliability. You probably thought about that when you got it. However, the wear-proof engine has yet to be invented! Things can go sideways sometimes. If the unexpected strikes, you may search the internet frantically for quick and affordable 1990 Pontiac Bonneville 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 Bonneville engine will be in good hands. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

My 1990 Pontiac Bonneville Check Engine Light Is On

If your Bonneville check engine light is on, it’s time to get it looked at. A check engine light that’s flashing or steadily illuminated could point to problems with your car’s starter, Possible causes can include a failing oxygen sensor, bad spark plug, a clogged catalytic converter, or a leaking engine vacuum, but that's only a few of the possible causes. Bring your Bonneville in for an on-board diagnostic check and we’ll figure out why that check engine light is giving you grief. Other signs your Pontiac Bonneville engine needs some TLC are oil leaks, or a sinking feeling that something’s wrong.

1990 Bonneville Engine Services

If your 1990 Bonneville engine needs repairs, 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. We'll also tell you if it's necessary for your safety. We want to provide you with the information you need to make an informed engine repair decision. By choosing Firestone Complete Auto Care for Bonneville engine repairs and you can feel good knowing that we only use Pontiac-compliant replacement parts such as the timing belt, engine oil seal, sensors, or other parts.

Questions About 1990 Pontiac Bonneville Engines

Why does the check engine light in my Bonneville turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Are Pontiac Bonneville engine noises bad? Unusual noises can signal a problem with your Pontiac Bonneville engine. Tapping or knocking could mean you need an oil change. Whistling could mean a belt is misaligned or there's an intake leak. 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 Bonneville engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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 put water in my Pontiac Bonneville radiator? It’s not recommended you put water in your Bonneville radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.
What could cause my Bonneville engine to suddenly stop? Your Bonneville car engine could stop suddenly due to low fuel, electrical issues, overheating, a faulty ignition system, mechanical troubles, or sensor problems.
Who can repair my Pontiac Bonneville engine? Your local Firestone Complete Auto Care fixes Pontiac Bonneville engines. Book an appointment today! We have thousands of locations across the country.