Hey Joe, the tool icon is a warning light, telling you you have a mechanical issue with vehicle. Your computer in vehicle has tripped the light due to a sensor or wiring problem in your vehicle. Their are literally a hundred different codes that computer can release, and store in memory. It's always best to pull digital trouble codes, dtc for short. Before any diagnosis or repair. The other smart thing that a technician does, is run a fuel pressure test. Otherwise you or the tech starts changing parts all willy nilly. Keep us posted what you find.
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