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

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

Why does my Jeep engine sound different?

Strange engine sounds can be a sign something’s off in your Jeep Grand Cherokee. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.

What could damage my Jeep Grand Cherokee engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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.

Can I add water to my Jeep Grand Cherokee radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your Grand Cherokee when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What can cause a Grand Cherokee engine to suddenly stop?

There are different reasons your Grand Cherokee vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.

Who fixes Jeep Grand Cherokee engines?

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

Reliable Repairs for 1999 Jeep Grand Cherokee Engines

Learn about

1999 Jeep Grand Cherokee Trim Options

Select your Jeep Grand Cherokee trim level to learn more about Jeep-recommended engine repair. Use the following chart to find information.

L6/4.0L

V8/4.7L

Jeep Grand Cherokee Repairs and Services

Stuff wears out. Even your Jeep Grand Cherokee's many parts and pieces. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 1999 Jeep Grand Cherokee services.

We’re Trained to Care for Jeep Grand Cherokee Engines

Jeep Grand Cherokee drivers trust that their Grand Cherokee will take them near and far. You may have even been thinking about that when you bought it. However, the wear-proof engine has yet to be invented! Things can go sideways sometimes. If they do, you’ll have to find a dependable 1999 Jeep service center — quick! Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. Since 1926, we’ve taken care of 500 million+ cars, so you can rest assured knowing your Jeep Grand Cherokee 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 1999 Jeep Grand Cherokee Check Engine Light Is On

As soon as your Grand Cherokee 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 starter, Potential causes may include a faulty oxygen sensor, worn spark plug, a clogged catalytic converter, or a leaking engine vacuum, to name a few potential sources. Bring your Grand Cherokee to Firestone Complete Auto Care to get computerized diagnostics and our expert techs will get the root of the problem. engine pinging noises, oil leaks, or misfiring.

1999 Grand Cherokee Engine Services

If your 1999 Grand Cherokee engine needs repairs, our technicians will make sure you understand what’s going on before they start working on your engine. 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 seek to give you all the info you need to make a smart decision about our services. Choose Firestone Complete Auto Care for Jeep Grand Cherokee engine repairs and you can feel confident knowing that we use Jeep-approved parts and components like the serpentine belt, oil gasket, sensors, or a different component.

Engine Q&A 1999 Jeep Grand Cherokee

Why does my Grand Cherokee’s check engine light come on when I start it? It's okay if your check engine light comes on when you first start your vehicle. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why does my Jeep engine sound different? Strange engine sounds can be a sign something’s off in your Jeep Grand Cherokee. Knocking or tapping could be a symptom of low oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding might be a sign of brake problems rather than engine issues.
What could damage my Jeep Grand Cherokee engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' 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.
Can I add water to my Jeep Grand Cherokee radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your Grand Cherokee when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What can cause a Grand Cherokee engine to suddenly stop? There are different reasons your Grand Cherokee vehicle engine could suddenly stop. You may be looking at a lack of fuel, faulty sensors, issues with the ignition system, engine overheating, electrical problems, or mechanical troubles.
Who fixes Jeep Grand Cherokee engines? Your local Firestone Complete Auto Care fixes Jeep Grand Cherokee engines. Book an appointment today! We have thousands of locations across the country.