
Regular services will help you get the best experience and performance from your vehicle, and they also extend its life. At your CDJR dealership, we have a full range of automotive services in Hayward, WI to keep your CDJR in great condition. These are a few examples of the CDJR services we provide.
Services Offered by Your CDJR Dealership
Spark Plug Replacement
A spark plug screws into the top of each engine cylinder, and it provides the ignition source for the fuel-air mixture. These plugs slowly wear out over time, and depending on the type of plugs in your vehicle, they will need replacement every 30,000 to 100,000 miles. Your vehicle manual will list the correct replacement time for your plugs.
Spark plugs may need earlier replacement if they’re damaged by other issues in your engine. A fuel-rich engine, for example, makes sparking difficult due to the lack of air. In addition, the high fuel level will coat the plugs in sticky carbon and further reduce their lifespan. We’ll check all your plugs and can replace any damaged ones in minutes.
Coolant Check
Coolant is a mixture of antifreeze and water, and it’s essential for removing engine heat. Your engine generates large amounts of heat due to combustion, and this heat is absorbed by fast-flowing coolant in the cooling system. The heat is then transported to the radiator, where airflow over the hot coolant removes the heat by heat exchange.
Engine coolant needs to be replaced regularly, as older coolant becomes less effective at absorbing heat. In addition, old coolant can turn corrosive and damage your engine. Our technicians will test your coolant and replace it if necessary. We drain the old coolant, then add new coolant mixed with a cleaner to remove any traces of the old coolant. This mixture is then drained, and we fill your engine with fresh coolant.
Alternator Repairs
Your vehicle contains a mini electrical generator called the alternator. The alternator produces all the electricity for your vehicle systems, and it also recharges the battery. Alternators spin at high speed to produce this power and work continuously as long as your engine runs. Over time, alternator components like the bearings can become damaged. This causes electricity production to fall and will result in additional engine problems.
The smell of hot metal, burning insulation, or strange noises from under the hood could all point to an alternator problem. In addition, a malfunctioning alternator will cause the battery warning light to illuminate. We’ll examine your alternator and repair it if possible. It’s seriously damaged, we can install a new one very quickly to fix this problem.
If your vehicle needs a service, Don’t wait until it’s too late—schedule your service appointment with us today and experience the difference at Don Johnsons Hayward Motors CDJR!

