A little reading on the subject.
The Car Uses More Fuel Than Normal; Strong Odor Coming From The Exhaust:
You notice a tank of gas doesn't last as long as it used to. Also the exhaust smells like rotten eggs. You may have also noticed that the car doesn't have the same amount of power as it once did. This type of problem seems to get worse once it develops and can lead to other serious problems, such as not starting.
The engine's coolant level may be too low: Refill cooling system with proper type of coolant for your engine.
If you have a carburetor, the choke may not be set properly, or the choke may not be working correctly: Check automatic choke linkage and choke heater operation. Repair, replace or adjust as required.
The engine may have mechanical problems: Check vacuum lines and fittings for leaks. Check engine compression. Check for broken fittings and mounts.
The fuel pressure regulator may be operating at too high a pressure: Perform fuel pressure test and repair or replace faulty component(s).
The ignition timing may be set wrong: Check and adjust ignition timing.
There may be a fault in the computerized engine and emission control systems: Scan injection and emission control system for Diagnostic Trouble codes. Replace or repair as required.
The engine's thermostat may be stuck closed: Replace thermostat.
The fuel injectors may be stuck partially open: Clean or replace fuel injectors.
Tuesday, December 22nd, 2009 AT 9:45 PM