U0400 DTC For Ford St

Ford St Engine Specifications:
Engine Type :Single Cylinder Engine
Cylinder Type :Opposite Piston Engine
Engine Air Intake Process :Naturally Aspirated

Your Ford St engine control system detects a problem, the computer stores the diagnostic trouble code U0400 in its memory. To figure out what is wrong with your vehicle you must first extract the U0400 DTC For Ford St.

To solve U0400 Ford St problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

U0400 Ford St DTC Meaning

U Network Code - Problem is climate control system, lighting, airbags, etc.
0 SAE - Generic
4 Fuel And Air Metering (Injector Circuit Malfunctions Only)
0 Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
0 Transmission Engaged At High Throttle Angle

If your vehicle failed a U0400 Ford St test and the U0400 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses U0400 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look U0400 DTC For Ford St: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.

U0399 DTC (Previous DTC Code) ( Next DTC Code ) U0401 DTC
You can also check other Ford car models :
The listed Ford models will give information about U0400 DTC.