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

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

Why is my Dodge Diplomat making engine noise?

Strange engine sounds can be a sign something’s off in your Dodge Diplomat. Tapping or knocking could mean you're low on oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my Dodge Diplomat engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I use water in my Dodge Diplomat radiator?

It’s not recommended you put water in your Diplomat 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 can cause a Diplomat engine to suddenly stop?

If your Diplomat 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 can repair my Dodge Diplomat engine?

For Dodge Diplomat engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

Reliable Repairs for 1986 Dodge Diplomat Engines

Learn about

1986 Dodge Diplomat Trim Options

Select your Dodge Diplomat trim level to learn more about Dodge-recommended engine repair. Use the following chart to find information.

V8/5.2L

Repairs for Your 1986 Dodge Diplomat

Nothing lasts forever. Even your Dodge Diplomat's many parts and pieces. When something breaks or fails, we’re ready to help. Click on a repair below to learn more about 1986 Dodge Diplomat repairs.

We’re Trained to Care for Dodge Diplomat Engines

Dodge Diplomat drivers trust that their Diplomat will take them near and far. You probably thought about that when you got it. Even so, pieces and parts can break down over time. Things can go wrong on the road. If they do, you’ll have to find a dependable 1986 Dodge service center — quick! Luckily, you won’t have to look far, since Firestone Complete Auto Care has 1,700+ locations across the country. We've serviced more than 500 million vehicles since 1926, and our technicians know Dodge Diplomat engines. Schedule a courtesy inspection at the first sign of engine trouble. Firestone Complete Auto Care offers both trustworthy and affordable engine repairs.

My 1986 Dodge Diplomat Check Engine Light Is On

If your Diplomat check engine light is on, it’s time to get it looked at. A steady or flashing check engine light could signal a serious issue with your car’s ignition, Possible causes can include a failing oxygen sensor, bad spark plug, a problem with your catalytic converter, or a leaking engine vacuum, to name a few possible causes. Bring your Diplomat in for an on-board diagnostic check and we'll determine exactly why your check engine light is on. rattling sounds, essential fluid leaks, or engine misfiring.

1986 Diplomat Engine Services

If your 1986 Diplomat 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. We'll also tell you if it's necessary for your safety. 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 Dodge Diplomat engine repairs and you can drive easy knowing that we use Dodge-approved parts and fluids — timing belt, engine oil seal, sensors, or other parts.

1986 Dodge Diplomat Engine Q&A

Why does the check engine light in my Diplomat turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is just your Diplomat testing its circuits. The light should go off shortly. Bring your vehicle in if it doesn't.
Why is my Dodge Diplomat making engine noise? Strange engine sounds can be a sign something’s off in your Dodge Diplomat. Tapping or knocking could mean you're low on oil. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my Dodge Diplomat engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, flooring the gas pedal while the car is in Park, or accelerating too quickly, too soon. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I use water in my Dodge Diplomat radiator? It’s not recommended you put water in your Diplomat 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 can cause a Diplomat engine to suddenly stop? If your Diplomat 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 can repair my Dodge Diplomat engine? For Dodge Diplomat engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.