DF309 DTC For Mercury Comet

Mercury Comet Engine Specifications:
Engine Type :Multi-Cylinder Engine
Cylinder Type :V-Type Engine
Engine Air Intake Process :Turbocharged Engine

Your Mercury Comet engine control system detects a problem, the computer stores the diagnostic trouble code DF309 in its memory. To figure out what is wrong with your vehicle you must first extract the DF309 DTC For Mercury Comet.

DF309 Mercury Comet 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.)

DF309 Mercury Comet DTC Meaning

D Chassis Code - Problem is controller area network wiring bus and modules.
F SAE - Generic
3 IC Module 4X Ref Circuit Intermittent, No Pulses
0 Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
9 A/C System High Pressure High Temperature

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. DF309 Mercury Comet code had an elaborate diagnostics procedure, including showing engine trouble codes on the air conditionning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable failures led to the technology being quickly retired.

DF308 DTC (Previous DTC Code) ( Next DTC Code ) DF310 DTC
You can also check other Mercury car models :
The listed Mercury models will give information about DF309 DTC.