Question about 1997 Pontiac Sunfire
All dash warning lights are on and rpm gauge an temp gauges go on and off but fuel and speed gauges are fine
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Posted on Jan 02, 2017
Switch ig. on, ground the sender unit wire for about 3 seconds see if the temp. gauge moves, if so change sender unit, if not then it is a faulty gauge reader.
also check instrument voltage stabilizer.
Posted on Jan 20, 2009
SOURCE: all dash lights on
Many times, When electrics act up. it has to do with a ground problem. Fuses must be good you have power. Auto electrics like to have a single wire running to the device and then depend on a ground near by to grounded steel instead of a return wire. Loose grounds have no return and the device acts crazy and will be erratic, and not act properly. No where for the electricity to go. Eliminate the possibility of bad or missing grounds first, then get out an electric volt ohm meter, Start checking voltage, and eliminating things that have proper and constant voltage. Then look for bad devices. Just trying to save you some money. Electrical Trouble shooting can be time consuming and expensive. You can do it. lbreen
Posted on Apr 22, 2009
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