Symptoms of a bad transfer case manifest themselves differently depending on the extent of damage within this important drive-line component. According to AAMCO, the most obvious sign of transfer case failure is the complete loss of four-wheel or all-wheel drive. Another sign of extensive damage to the transfer case is the inability to switch back to two-wheel drive from four- or all-wheel driving modes.Know More
Some signs indicate that a transfer case is about to fail. These warning signs include grinding noises coming from the transfer case area, leaking, dark or low lubricant fluids and rough shifting between drive modes. Ignoring these warnings can result in more dire problems. Direct Tire and Auto Service explains that any of these warning signs are a cue to have a transfer case replenished with new, clean fluid and inspected for damage to the transfer case housing and gears.
Escondido Transmission points out that some symptoms of a bad transfer case are easily remedied by properly shifting between drive modes, and only using four- and all-wheel drive modes under manufacturer specified conditions. Another remedy includes a fluid drain and refill to the proper levels. Serious, internal damage to the transfer case may require complete dismantling and rebuilding of the failed component.Learn more about Car Parts & Maintenance
Symptoms of a bad ignition switch include failure of the engine to turn over when the key is turned to the "start" position and failure of the radio or headlights to work when the key is in the "on" position. They also include a car that stalls out frequently when idling and an ignition switch that is very hot to the touch.Full Answer >
Symptoms of a bad ignition module are sudden engine stalling or power loss while the car is in motion, engine stuttering accompanied by a smell of gasoline and an inability to restart the engine following a stall. Decreased gas mileage is also a sign of a compromised ignition module.Full Answer >
Symptoms of an intake manifold gasket leak include poor engine performance, engine overheating and coolant leaks. The leak allows additional air to mix with the fuel-air mix, causing the engine to run lean. On vehicles with onboard diagnostics, the leak often causes the check engine light to illuminate.Full Answer >
Symptoms of a cracked cylinder head are identical to those of a blown head gasket and include engine misfires, leaking oil that drains from the engine and the seemingly unexplained presence of coolant fluid in engine oil. Cracks in a vehicle's cylinder head may be large enough to see or may be invisible to the naked eye, and diagnosis of this issue as opposed to issues with similar symptoms, such as a blown head gasket, requires specific techniques including the use of dye and pressure to expose the cracks. Because it can be easily confused with other issues, diagnosing a cracked cylinder head requires more than simple knowledge of symptoms.Full Answer >