Every time I start the engine, all the gauges (Temp, Tach, Speed, Fuel) go to 100%, 75%, 25%, 0, then they begin measuring their respective values simultaneously. It started doing this about 2 months ago. I've looked at all the manuals and online and can't find anything or anyone with the same issue.
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Re: 2002 dodge neon gauges
Hi, i have had this problem on a vehicle a couple of years ago, it turned out to be the voltage stabilizer on the back of the clocks, a good auto electrician should locate it and replace it for you, they are cheap to buy, hope this helps, thanks for useing fixya
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its possible that you have a head gasket starting to go bad and driving it at a higher speed the engine gets hotter and can force combustion chamber gasses into the cooling system causing a higher temp showing up on the gauge.you can get a block test down that hopefully show it up depending how early in the stage the gasket has deteriated.sound this as a diagnostic sign back in the early 80`s.
Had same problem with my 2000 dodge stratus 2.4 liter and transmission would not shift out of 1st gear. Solution was ignition fuse under the hood was blown, one side of fuse working, replaced 10 am fuse everything works, tach, speedometer, gas gauge and transmission started back to shifting.
If all your gauges (or most) have died at the same time then it is probably a live wire problem, as all these gauges are normally possative feed and nagative switched. Check the live wire is connected properly on the back of the dash. I hope this helps.