SOURCE: oil sending switch location on a1993ford ranger
most oil sending units are located on driverside rear of engine block or located right near or at oil filter
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SOURCE: Where is the location of
VSS Sensor
The Vehicle Speed (VSS) Sensor input is used by the PCM to determine vehicle speed. The VSS generates a signal that increases in frequency proportionate to vehicle speed. The PCM has a base frequency stored in memory for a distance of one mile. By comparing the input and stored value, the PCM calculates vehicle speed.
VSS types include: photo-optic, permanent magnet generators or hall effect technology. The PCM may use other sensors on the vehicle (ABS Wheel Speed) to validate VSS operation.
VSS information is used to calculate vehicle loads including: torque converter application, cruise control, fuel cutoff/speed governance strategies, instrument panel speedometer and more.
Modified drivetrain components such as final gear sets and/or tires can alter VSS input values to the PCM. Improper signals can alter Torque Converter Clutch (TCC) application, shift points, cruise control operation as well as many other systems relying on vehicle speed input.
Typical VSS
WARNING
To avoid personal injury and/or vehicle damage, refer to the service precautions at the beginning of this section.
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The Speedometer may not work due to a break in the wire for the VSS, or a bad VSS or a bad instrument cluster.
SOURCE: where is the oil sending
Hi, it's usually close to the oil filter. See if this picture makes sense.
SOURCE: I have a 2000 ford
The Check Engine light is trying to tell you that there is a malfunction in your engine control system and that you need to get it scanned for fault codes and diagnosed accordingly. There are probably 100 or more possible malfunctions that could be causing light to come on, so nobody can tell you anything for sure until it is scanned. The overdrive light flashing is trying to tell you that there is a fault in your transmission control system. The same applies here. Without codes, nobody can tell you how to fix it.
There is a chance that one problem is causing both lights to cme on. The computers on your vehicle share sensor information for certain things. If there is a problem with a sensor circuit that is one of these shared inputs, then it will cause both lights to come on. There could also be a shared ground or power circuit causing this. I have seen bad ignition coils in Ford trucks wreak havoc with ALL of the computers and modules at the same time. In these cases, replacing a single ignition coil fixed several codes in several modules.
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