You may need tune up ..once I changed air filter to mfrs filter and mileage went up . ..'make sure tires inflated properly fuel filter could have issue. Spark plug wires may need replacing. Etc
Yes. A sticking fuel injector can allow far too much fuel into a cylinder.
Excessive fluoride consumption can cause dental fluorosis, a condition that leads to discoloration and pitting of the teeth.
Scan the computer diagnostic codes using a GM code scanner.
bad piston rings.
too much fuel, excessive oil consumption
If the operator is not concerned with emission regulations he or she may be faced with steep fines. Also an engine that is not within regulations often is not running efficently. This may cause an excessive increase in fuel consumption. If the operator is not concerned with emission regulations he or she may be faced with steep fines. Also an engine that is not within regulations often is not running efficently. This may cause an excessive increase in fuel consumption.
A dirty or clogged air filter would cause excessive fuel consumption, and it could cause the engine to surge, but I'm not sure about the drop in your alternator guage.
No
Yes, driving in high gear can lead to excessive fuel consumption, especially if the vehicle is not operating efficiently at that gear. When the engine runs at low RPMs in high gear, it may struggle to provide the necessary power, causing it to work harder and consume more fuel. Additionally, if the vehicle is underloaded or if the speed is too low for the selected gear, it can further exacerbate fuel inefficiency. Proper gear selection is crucial for optimal fuel economy.
a bad camshaft sensor will do this. considering it is tuned up properly...
Excessive fuel consumption in a Cadillac can be caused by several factors, including engine issues like a malfunctioning fuel injector, a clogged air filter, or a failing oxygen sensor. Poor maintenance, such as infrequent oil changes or neglected tire pressure, can also contribute to decreased fuel efficiency. Additionally, driving habits, such as aggressive acceleration and excessive idling, may further exacerbate fuel consumption. Lastly, the vehicle's weight and aerodynamics can play a role in how efficiently it uses fuel.
Black smoke is usually caused by excessive fuel consumption, alot of things can cause this but if the turbo was recently installed, the injection system (controlled by the ECU) needs to be reprogrammed for it.