The engine may develop an oil leak from the lower crankcase portion of the engine block . Our technicians tell us that the engine must be removed from the vehicle to properly repair this oil leak.
The steering wheel position sensor may fail, resulting in the service stability message being displayed.
Overheating of the engine may cause the cylinder head to expand, severely straining the head bolts and damaging the threads in the engine block. This commonly results in a blown head gasket . Our technicians tell us the engine block threads must be repaired before the cylinder head is reinstalled.
The 2006-2011 Cadillac DTS may have issues with the EVAP system, a part of your emission control system.
The EVAP canister vent valve or valve solenoid wiring may fail causing illumination of the check engine light , setting code P0446 , and problems filling the tank with fuel.
To correct the issue, the EVAP canister vent valve , solenoid, and wiring must be inspected. The most common fix is replacement of the wiring connector or replacement of the vent valve assembly.
An automatic transmission fluid leak may develop from the rubber section of a transmission cooler line. In some cases the rubber section of hose can be replaced. In others, the complete cooler line must be replaced to correct this type of leak.
The fuel pump may fail causing the engine to stall and not restart.
The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.
An ignition coil may fail causing one of the cylinders to misfire . Each of the two banks of cylinders has its own coil assembly. If one ignition coil fails the coil assembly for the corresponding cylinder bank must be replaced.
A loose or worn gas cap may cause check engine light to illuminate.
The water pump and/or the plastic side tanks on the radiator may leak causing a loss of coolant . The engine may overheat due to coolant loss. Continued coolant loss after external leaks have been repaired could indicate a blown head gasket .
The crankshaft position sensor may fail causing the engine to stall intermittently, the Check Engine Light may or may not illuminate.
The parking brake may not release automatically due to a failed vacuum switch or actuator. Our technicians tell us that if vacuum is supplied to the actuator when the transmission is in gear, the vacuum switch is functioning and replacing the actuator should correct this concern.
The Check Engine Light may illuminate due to an engine vacuum leak from the intake manifold area.
Brake fluid can become dirty and may cause problems in the brake system ; it should be flushed every 60,000 miles.
You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be completely flushed.
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
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