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I have a 1999 camry with a 2.2 liter engine. This car has been running great but lately the fuel mileage has dropped way off. Like 15 miles to the gallon only. And i don’t see any leaks. What could be the problem? Thanks to anyone that helps

What might cause my 1998 pontiac trans sport to suddenly be going through more fuel under the same driving conditions and gas quality?  The oil was just changed recently and this has not helped.

recently my mother had a tune up done to her 98 oldsmobile, new plugs, new wires,oil change,and new O2 sensor and even had new tires put on. But now after that her gas millage has dropped from about 28mpg to about 18mpg. Is there anything that could be causing the poor gas millage. She is still using the same type of gas and isn’t driving more agressively. Kind of at a loss to why it would be getting such poor millage after everything that was done to improve the running condition. And she had the gas lines and tank checked for leaks and there were none. I have been trying to think of another reason but im at a complete loss as to what it might be.

thanks

1989 Ford Ranger 6 cyl Two Wheel Drive Automatic 

I need a new FUEL SENDING UNIT but when I talked to a local auto supplier they asked if the sending unit was on the passenger or driver side. Is there anyway I can tell which sending unit I need to purchase without dropping the fuel tank?

Apparently, the sending unit for the “drivers side” is twice the price of the passenger side but when I searched EBAY to purchase a sending unit it never indicated whether it was for the drivers or passenger  side.

gas mileage has gone from high 20′s to 12-14 I nee help? also is it possible for o2 sensor to be culprit with out sending a code?

I have Mitsubishi Express 2008 manual transmission Van. It’s petrol/lpg. I recently got it serviced (Engine oil, oil filter, coolent, brake fluid, rear axle oil, manual transmission oil, spark plugs, air cleaner filter). After servicing, power/pickup/speed on lpg got reduced however it’s still the same on petrol. Please let me know what went wrong?