F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
Wastegate Control: A device that opens the wastegate in case of overboost from a turbocharger.
WOT: Wide Open Throttle. A condition of maximum airflow through the throttle body.
Zip Tube: Another name for "fresh air duct" or "air inlet duct".
TRANSMISSIONS:
NOTE: The transmission naming convention is as follows:
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The first character, a number, is the number of forward gears.
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The second character, either the letter "F" or "R," represents front (transaxle) or rear (transmission) wheel drive.
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The next set of characters, a grouping of numbers, represents the design torque capacity of the transmission/transaxle (for example, "27"
represents 270ft./lbs. in the 4F27E transaxle).
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The last character, if used, is one of the following:
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"E" for electronic shift
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"N" for non-synchronous shift
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"S" for synchronous shift
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"W" for wide ratio
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4F27E: Also known as the FN Focus automatic transmission.
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4F44E: Formerly known as the CD4E.
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4F46S: Formerly known as the Ax45 and regular-duty AXOD-E.
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4F50N: Formerly known as the Ax4N and heavy-duty AXOD-E.
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4R44E: Formerly known as A4LD for 3.0L applications.
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4R55E: Formerly known as A4LD for 4.0L applications.
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4R70W: Formerly known as AOD-E.
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4R100: Formerly known as E4OD.
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5R44E: Formerly known as A5LD for 3.0L applications.
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5R55E: Formerly known as A5LD for 4.0L applications.
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5R55N: Lincoln LS automatic transmission.
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5R55W: Wide-ratio truck transmission.
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4x4L: 4x4 Low.
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A/T: Automatic Transmission.
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CCS: Coast Clutch Solenoid.
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CCSF: Coast Clutch Solenoid Fault. Displays a YES if fault exists.
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EPC: Electronic Pressure Control.
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EPCV: Electronic Pressure Control Volts.
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ESS: Electronic Shift Scheduling.
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HCDSS: High Clutch Drum Speed Sensor. PCM input from the 4R44E and 4R55E.
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M5OD: Manual 5-Speed transmission with overdrive (RWD).
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M/T: Manual Transmission/Transaxle.
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NPS: Neutral Pressure Switch or its signal input to the PCM.
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OCS: Overdrive Cancel Switch.
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OSS: Output Shaft Speed. Indicates rotational speed of the transmission output shaft.
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PNP: Park/Neutral Position switch. Also known as Neutral Drive Switch (NDS), Neutral Gear Switch (NGS), and Transmission Switch
Neutral (TSN).
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REVERSE or REV: Transmission Reverse Switch Input.
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SIL: Shift Indicator Lamp. A lamp that indicates the preferred shift points on select manual transmission/transaxle vehicles.
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S91/SS2/SS3: Shift solenoids. Devices that control the shifting in an automatic transmission.
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TCC: Torque Converter Clutch. When energized, causes a mechanical engagement and disengagement of the Torque Converter Clutch.
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TCIL: Transmission Control Indicator Lamp. Indicates that the Transmission Control Switch (TCS) has been activated.
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TCS: Transmission Control Switch. Modifies the operation of electronically controlled transmissions.
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Torque converter: A device which by its design multiplies the torque in a fluid coupling between an engine and transmission/transaxle.
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TFT: Transmission Fluid Temperature. Indicates temperature of transmission fluid.
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Transaxle: A device consisting of a transmission and axle drive gears assembled in the same case. Front-wheel drive applications.
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Transmission: A device which selectively increases or decreases the ratio of relative rotation between its input and output shafts. Rear-wheel
drive applications.
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TR: Transmission Range. The range in which the transmission is operating.
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TR Sensor: Formerly known as Manual Lever Position Sensor (MLPS). Provides information to the PCM on the transmission range selector
position.
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TR V: Transmission Range Voltage.
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TSS: Turbine Shaft Speed. Indicates rotational speed of the transmission turbine shaft.
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VSS: Vehicle Speed Sensor. A magnetic pickup device that generates an AC signal that is proportional to vehicle speed.