Your Riley Mph engine control system detects a problem, the computer stores the diagnostic trouble
code B0666 in its memory.
To figure out what is wrong with your vehicle you must first extract the B0666 DTC For Riley Mph.
B0666 Riley Mph engine problem can be occur defective fan clutches are a common and often overlooked cause of engine overheating. The shear characteristics of the clutch fluid gradually deteriorates over time, with an average loss in drive efficiency of about 200 rpm per year. Eventually slippage reaches the point where effective cooling is no longer possible and overheating results. (On average, the life of a fan clutch is about the same as a water pump. If one needs to be replaced, the other usually does too.)
B0666 Riley Mph DTC Meaning
Body Code - Problem is antilock brake system, electronic suspension and steering systems.
SAE - Generic
Vehicle Speed Control And Idle Control System
Vehicle Speed Output Circuit
Transmission Control Module Reprogrammable Memory
While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the B0666 Riley Mph code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.