1999 Buick Century "car losing gas mileage" Questions

codepo455buicklucerne bad gas mileage and smell Could be as simple as the gas cap is lose or not sealing correctly or faulty emissions component. Real world EVAP How to diagnose P0455 code

losing power up hills and seemed like it wouldnt shift right and had poor gas mileage. The check engine light came on once briefly. Scanned it for code came P404 which said open source something to do

...car..other lights or working..cant see anything even in the daytime nights are worse! like the upper light are still working it's the light for mileage, trip, anti luck, gas, and the other is there ...

Losing gas mileage, how to solve. Getting very poor gas mileage. is there a home quick fix? Take it to Autozone or Oreillys for a free scan. Several parts like a Throttle Position Sensor or Oxygen ...

losing gas mileage, why? losing an estimated half a mile per mile The most common cause for loss of mileage is the engine not being properly tuned. Resrtricted air filter, spark plugs, dirty injectors

losing gas mileage, left bank running lean gas mileage has gradually been dropping , check engine light comes on periodically and when checked says left bank running lean, acts sluggish at times but ...

...gas mileage on our s-10 zr2 what can i do to get better gas milage out of my truck usualy it is 20 miles to the gallon and to improve your gas mileage i would do a tune up... spark plugs, wires, cap, ...

loses power once warmed up bad gas mileage not as pepe losees power luggish change oil, plugs, wires, and fuel filter

Losing Power 1998 Dodge Dakota 4 cyl. 2wd. 5 speed. I lose power going up hills. And I have tried everything from new plugs and plug wires to injection cleaner and even bumped up my time. Nothing ...

...losing gas mileage besides cold and tire pressure poor spark plugs, dirty injectors, poor gas, thermostat opening too soon, how you drive the car, dirty air filter, jack rabbit take off from a stop. ...