Intermittent or non-working Speedometer Cars affected: Ralliart UK * supplied Evo's 5/6 & TME Symptom: The Speedometer either flickers or just does not register any speed. It is usually only a temporary fault but can end up as permanent failure. Problem and cure: This can be due to a couple of reasons. The main reason for an intermittent or totally non-working Speedometer is that the electrical connector on the Speedometer drive gear on the gearbox can become water logged (especially if you have washed the engine bay, never wash the engine bay!) and is shorting out. This stops the signal reaching the Speedometer. To cure this fault you need to open the connection, dry it out, make sure it is not corroded and reconnect.  The second reason is due to a faulty kph to mph converter. This is mainly a problem due to the type of converter used and this pretty much only affects the early Ralliart cars (E5/6). The converters on these early cars consist of a rectangular grey plastic box that is either screwed or stuck onto the engine bulkhead (see photo, note the exact position on the bulkhead may vary). Due to vibration they can eventually fail and stop the signal reaching the Speedometer. The cure is to replace the converter for a later version that is mounted inline straight on the Speedometer drive gear on the gearbox. Approximate cost of repair: Approx £100 to replace converter (FOC if still under warranty) * Ralliart UK now trading as Xtreme Autos Back to question page