Why does my F-350’s check engine light come on when I start it?

Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your F-350 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why is my Ford F-350 making engine noise?

Strange engine sounds can be a sign something’s off in your Ford F-350. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal 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 my Ford F-350 engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.

Can I use water in my Ford F-350 radiator?

Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.

Why did my F-350 engine suddenly stop?

Reasons your F-350 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who fixes Ford F-350 engines?

Your local Firestone Complete Auto Care offers Ford F-350 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!

Reliable Repairs for 1991 Ford F-350 Engines

Learn about

1991 Ford F-350 Trim Options

Select your Ford F-350 trim level to learn more about Ford-recommended engine repair. Even Ford F-350 parts will get older and change.

L6/4.9L

V8/5.8L

V8/7.3L

V8/7.5L

1991 Ford F-350 Repair

Nothing lasts forever. Even your Ford F-350's many parts and pieces. We’re here to help when something stops working. Click on a repair below to learn more about 1991 Ford F-350 repairs.

We Know Ford F-350 Engines

Ford F-350 drivers trust that their F-350 will take them near and far. That might be why you bought it in the first place. However, the wear-proof engine has yet to be invented! Things can go sideways sometimes. When they do, you might find yourself searching for 1991 Ford F-350 engine repair or replacement parts. 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 Ford F-350 engines. Schedule an appointment if you're experiencing problems that could require engine repair. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

Check Engine Light on 1991 Ford F-350

As soon as your F-350 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, damaged spark plug, a clogged catalytic converter, or a leak in the engine vacuum, but that's only a few of the possible causes. Stop by your local Firestone Complete Auto Care to get your F-350 issues diagnosed and we’ll figure out why that check engine light is giving you grief. rattling sounds, burning smells, or engine misfiring.

Engine Repairs for Your 1991 F-350

If your 1991 F-350 engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. If a repair can wait, we'll let 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 F-350 engine repairs and you can feel confident knowing that we use Ford-approved parts and components like the cambelt, motor oil seal, sensors, or other parts.

Engine Q&A 1991 Ford F-350

Why does my F-350’s check engine light come on when I start it? Generally, your check engine light turning on upon ignition is not a bad thing. It’s just your F-350 firing up its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why is my Ford F-350 making engine noise? Strange engine sounds can be a sign something’s off in your Ford F-350. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal 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 my Ford F-350 engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or slamming the gas pedal while the engine is still cold. Steer clear of these habits to help protect engine performance and efficiency.
Can I use water in my Ford F-350 radiator? Only in emergencies. A 50/50 mix of coolant and water (or a pre-mixed) coolant is recommended. However, if you must keep driving when you're out of coolant, it's better to drive with water in your coolant reservoir than nothing.
Why did my F-350 engine suddenly stop? Reasons your F-350 car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who fixes Ford F-350 engines? Your local Firestone Complete Auto Care offers Ford F-350 engine repair. Schedule an appointment today at one of our thousands of locations nationwide!