Oil Pressure Fuel Temp Amp Gauge Set for Allis Chalmers WD45 D15 17 19 Diesels

there are several checks you can perform to verify the gauges in your instrument cluster are working correctly these can be helpful if you're trying to determine whether or not an incorrect or questionable reading is a result of a bad sending unit broken wire or the gauge itself we cover the fuel gauge in a separate video so we will not repeat the troubleshooting process here instead this video will focus on testing electronic oil pressure and water temperature gauges some older vehicles use a capillary tube to feed directly low pressure to the gauge if you suspect one of these mechanical gauges is faulty you'll want to check the reading with a known good mechanical gauge or tester will use 1965 GTO water and oil pressure gauges for the sake of our example but the process will remain the same for any aftermarket or factory electronic age the sending unit threads into a dedicated locatio