How much gas was in it, or is in it now? If there is not much gas in the car, get some fresh gas, as much as you can, and add it to the fuel.
The gas may be a little rotten or have gummed up the injectors.
Try some high quality fuel system cleaner. The only two worth while are BG44K and Sea Foam. BG44K is better, but you will have to go to a service station or car dealership parts counter to get it. Sea Foam can usually be purchased at an Advance or Auto Zone parts store.
You can put a can in the tank if you have at least 10 gallons in it.
That is about the only way to get the injectors cleaned out and it may take two cans and a little drive time afterwards to feel the difference, but it will gett better as you drive.
To clean the intake and upper valve train, you can pour a can directly into the intake manifold. The best place to do this is into the brake booster vacuum line. Do not reve the car up while the cleaning process is taking place. It will create a lot of smoke from the exhaust, so keep that in mind. After a few minutes, the smoke will start to clear. When it is back to normal, take the car for a spin. Again, it will loosen deposits that will take time to flush out so you may not feel all the benefits right away.
Other than that, if the car ran okay when it was put away, you may have to replace a fuel filter or something, but old gas is a tough problem when starting a car that has sat.
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Sunday, November 13th, 2011 AT 9:14 PM