Your air filter is probably clogged. Try cleaning or replacing it.
NO, but a good tuneup will probably cure your problems. There is no cure in a can for the symptoms you list.
Often a faucet will sputter if there is air in the lines. This happens if the water has been turned off and then on again. If this is the cause, it is only necessary to run the water a while and the air will get out of the lines, and the sputtering will stop.
Stops dirt from entering the engine which will damage internal parts.
When you are accelerating and your vehicle is sputtering, it is usually a misfire in the engine. Meaning one of your spark plugs or wires is malfunctioning. A simple tune up will fix this problem. Sputtering caused by a misfire is usually accompanied by a jerking of the vehicle when Idle. IF you are at a stop sign and you let go of the brakes, your vehicle will start jerking forward on its own without pressing the gas. try a tune up.
White smoke is a good indication you have a blown head gasket. And/or a cracked head. Did you noticed, when it happened that the engine started running rough? Best i can do with little info.
Dog nose prints, as with all other dirt, can be removed with any good window cleaner.
You do not
See related link, the question has been answered before.
Engine Air Cleaner/Filter See Engine Compartment Overview on page 5-12 for the location of the engine air cleaner/filter. When to Inspect the Engine Air Cleaner/Filter Inspect the air cleaner/filter at the Maintenance II intervals and replace at the first oil change after 50,000 miles (83 000 km). See Scheduled Maintenance on page 6-4 for more information. If you are driving in dusty/dirty conditions, inspect the filter at each engine oil change. How to Inspect the Engine Air Cleaner/Filter To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake the filter to release loose dust and dirt. If the filter remains caked with dirt, a new filter is required. To inspect or replace the engine air cleaner/filter, do the following: [img]http://i45.tinypic.com/k99kl2.jpg[/img] 1. Loosen the two clips on the top of the engine air cleaner/filter housing and lift the filter cover tabs out of the housing. 2. Push the filter cover housing toward the engine. 3. Pull out the filter. 4. Inspect or replace the engine air cleaner/filter. See Normal Maintenance Replacement Parts on page 6-13. 5. To reinstall the cover, position the tabs through the slots on the housing. A notch on the sides of the filter cover will indicate the correct engagement. Reinstall the two clips on the top of the housing when you are finished. CAUTION: Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air; it helps to stop flame if the engine backfires. If it is not there and the engine backfires, you could be burned. Do not drive with it off, and be careful working on the engine with the air cleaner/filter off. Notice: If the air cleaner/filter is off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner/filter in place when you are driving.
Back fire can be caused by improper ignition or the wrong fuel air mixture. With the engine off remove the air cleaner and look below it. If there is fuel in the pipe then the carburetor is not stopping the flow of fuel and it needs a rebuild.
Its your coil packs, they become defective after time, it causes a sputtering and loss of compression. Also check the intkae manifold. the throttle body control will regulate fuel to stop sputtering set idle for around 900rpms
The Chevy engine has something called a governor. This is done to prevent you from going over 100mph. Most of the new vehicles have them in the engine. The only was to stop this is to have the governor removed but it is not necessary and it does not harm your vehicle at all.