Check for a fuse in fuse block marked gauges.
Because it's stuffed
The truck doesn't have a freon pressure gauge. That is a tool that the repairman/mechanic has.The truck doesn't have a freon pressure gauge. That is a tool that the repairman/mechanic has.
That light notifies you that one of the gauges is out of its normal parameter. Check the temp (overheating), the voltage (not charging) and the oil pressure gauge (low or no oil pressure).
what would cause a oil pressure gauge to fluctuate on my 99 Chevy truck silverado i change the sending unit it does it mostly after it warmed up
1993 chevy 4.3 v6 1500 truck temp gauge inoperative,
We need to know which gauge stopped working.
The 1974 Chevy truck has a mechanical fuel pump with a built in pressure regulator.
Chevy's are known for this problem, i just recently had the same problem and what you need to do is replace the fuel sending unit. My original problem had to do with my fuel pump not working and i wasn't really worried about the gauge but we figured since we had the tank down we might as well swap the sending unit and my gauge starting working. Good luck
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It controls / regulates the fuel pressure.
Electrical connection issue.
could be a bad sensor a bad gauge or a broken or disconnected wire