Dodge Cars & Trucks - Page 9 - Recent Questions, Troubleshooting & Support
When it rains speedo and tach stop working on dash {instrument cluster lights come on} car runs fine. When drys out it's back to normal
This could be an issue with the actual speedo cable. When a old/worn cable gets wet it can sometimes slip inside the connection at the speedo or where it connects to the transmission. Does the speedo needle 'wobble' when you travelling at a constant steady speed? This is a sign of a worn cable or the connector it plugs into.
If it is happening when it rains check the cable at the transmission end isn't getting wet from rain getting in somewhere. There is a possibility here that you might need a new speedo cable. There are temporary fixes but it is best to work out if it's something simple like a loose connector.
If you can get access to the connectors at both ends check they aren't loose. Remember this is a 20 year old vehicle, even speedo cables wear out, especially on higher mileage vehicles.
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