The speedometer stopped working ? is this what you meant ? You probably have a bad VSS - vehicle speed sensor . The VSS is an input to the PCM - engine computer , besides being a signal for the speedometer it is used for shift control and other thing's .
Vehicle Speed Sensor
The vehicle speed sensor (VSS) (Figure 43) is a variable reluctance or Hall-effect sensor that generates a waveform with a frequency that is proportional to the speed of the vehicle. If the vehicle is moving at a relatively low velocity, the sensor produces a signal with a low frequency. As the vehicle velocity increases, the sensor generates a signal with a higher frequency. The PCM uses the frequency signal generated by the VSS (and other inputs) to control such parameters as fuel injection, ignition control, transmission/transaxle shift scheduling and torque converter clutch scheduling. You could possibly have a DTC stored in the PCM.
P0500 - Vehicle Speed Sensor (VSS) Malfunction
Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). If the engine rpm is above the torque converter stall speed (automatic transmission) and engine load is high, it can be inferred that the vehicle must be moving. If there is insufficient vehicle speed data input, a malfunction is indicated and a DTC is set. On most vehicle applications the malfunction indicator lamp (MIL) will be triggered when this DTC is set.
Diagnostic Aids: - Monitor VSS PID while driving vehicle. This DTC is set when the PCM detects a sudden loss of VSS signal over a period of time. If vehicle speed data is lost, check source of where vehicle speed signal originates. Note TCSS does not have a PID, circuitry frequency must be checked for sudden loss of sensor signal.
P0501 - Vehicle Speed Sensor (VSS) Range/ Performance
Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. This DTC is set the same way as P0500, however the malfunction indicator lamp (MIL) is not triggered.
Refer to diagnostic aids for P0500.
SOURCE: SL1 manual transmission
if it is just one gear then it is a faulty synchronizer of gear......if it is more than one then it is because your clutch is not fully releasing or the pilot bearing......either way have a mechanic that knows transmissions have a look at it
SOURCE: 1999 cougar automatic transmission slipping
At end of speedometer cable mounted on the transmission.
SOURCE: 1994 lexus 300 will not shift but will shift if i manually shift
If the transmission "brain" in modern cars senses problems it can keep the tranny from shifting. Usually leaves you in second gear as a safety and warning indication. I don't now if that year lexus had this ability but getting it checked on a diagnostic computer that read transmission codes should shed some light on your situation.
SOURCE: automatic 3 speed transmission wont shift out of first gear
that is what they consider safe mode for those transmissions, they are a very smart electronic transmission it does that so you dont ruin the trans.
It has detected a problem and you must take it to a tech and have the codes pulled, could be as simple as a sensor or solenoid pack
SOURCE: I own 1994 Acura Integra with a 5 speed manual
If the whine is there than the main bearing is already worn adding fluid will not save it, you will have to swap it or rebuild it. sorry i know you were hoping for something better.
Testimonial: "Well, thanks for your assessment, and it sounds as if this will be an expensive repair. Could you give me an estimate? Many thanks, Chester Brezniak"
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