2018 MKC Owner's Manual

Engine Emission Control

• An open or pinched sensor hose. • Incorrect engine oil level. • Incorrect fuel for climatic conditions. • Incorrect engine oil viscosity for climactic conditions. Note: Some vehicles have a lifetime fuel filter that is integrated with the fuel tank. Regular maintenance or replacement is not needed. Note: If these checks do not help you correct the concern, have your vehicle checked as soon as possible. Noise Emissions Warranty, Prohibited Tampering Acts and Maintenance On January 1, 1978, Federal regulation became effective governing the noise emission on trucks over 10,000 lb (4,536 kg) Gross Vehicle Weight Rating (GVWR). The preceding statements concerning prohibited tampering acts and maintenance, and the noise warranty found in the Warranty Guide, are applicable to complete chassis cabs over 10,000 lb (4,536 kg) GVWR.

Your vehicle has various emission control components and a catalytic converter that enables it to comply with applicable exhaust emission standards. To make sure that the catalytic converter and other emission control components continue to work properly: • Do not crank the engine for more than 10 seconds at a time. • Do not run the engine with a spark plug lead disconnected. • Do not push-start or tow-start your vehicle. Use booster cables. See Jump Starting the Vehicle (page 255). • Use only the specified fuel listed. • Do not switch the ignition off when your vehicle is moving. • Avoid running out of fuel. • Have the items listed in scheduled maintenance information performed according to the specified schedule. Note: Resulting component damage may not be covered by the vehicle Warranty.

CATALYTIC CONVERTER

WARNINGS Do not park, idle or drive your vehicle on dry grass or other dry ground cover. The emission system heats up the engine compartment and exhaust system, creating the risk of fire. The normal operating temperature of the exhaust system is very high. Never work around or attempt to repair any part of the exhaust system until it has cooled. Use special care when working around the catalytic converter. The catalytic converter heats up to a very high temperature after only a short period of engine operation and stays hot after the engine is switched off. Exhaust leaks may result in entry of harmful and potentially lethal fumes into the passenger compartment. If you smell exhaust fumes inside your vehicle, have your vehicle inspected immediately. Do not drive if you smell exhaust fumes.

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MKC (TME) Canada/United States of America, JJ7J 19A321 AA enUSA, Edition date: 201707, First Printing