I'm guessing that the car turns over OK, but just won't start.
In order for a car to run, there are 4 things needed; Fuel, Fire (spark) Compression and Air.
If any one of these components is missing, or if it's ratio is incorrect, the car may or may not run at all.
How was the car running before it stopped starting? Any problems? Performance OK?
I'd try to get the car to a diagnostic center and let them put it on the computer. This will save you possibly chasing your tail. You might also beg borrow or steal a code reader just to see if your car's computer is "throwing" codes. This might be revealing, but not necessarily.
If you decide that you want to have at it yourself, I think I'd start by checking for spark. It costs nothing and is easy. Just pull the plug wires one by one and hold them (with an insulated tool) so the contact inside the wire is close to, but not touching the spark plug. Have someone turn the car over for a few seconds. If you have spark, you should hear an arcing sound between the plug and the wire. This is a good thing. Check each plug. This pretty much eliminates a "fire" problem. If you don't hear those wires arcing, you DO have a fire problem, probably the coil pack(s).
Next, take apart the air cleaner box and check the filter. If it's badly soiled or oil soaked, replace it. Also check for crud in the box or in the tube that goes from it to the air inlet.
If you didn't have any major malfunctions before the car began to not start, like a major overheating issue, or really poor performance, I wouldn't expect that you have a blown head gasket. (compression loss if it's leaking)
Replacing the fuel filter is a cheap and easy thing to do. If you haven't done this recently, I'd throw a new one on just "because". Beyond that in the fuel injection system, I'm not sure how to check for the presence of fuel, but if you pick up a Haynes or Chilton manual for the car, it will tell you ow to do that. (there IS gas in the car, right?)
It could be that your car has a bad computer. As far as I know, this is beyond what we can check ourselves. Refer back to my diagnostic center suggestion.
Good luck and stop back if you have more questions or need more help.
FriPilot
i wont to change my shifter but cant take off old one
There could be several reasons why a 1996 Sunfire will turn over but not start. The most common reason is a spark plug needs to be replaced. Check with a licensed mechanic for further help.
probably wont find one. closest your going to come is a website to order a replacement.
headlights and dash lights in 2001 sunfire wont turn on.
You could have a fuel pressure problem, lack of spark, malfunctioning computer, or internal engine damage.
possibly idle air control vault getting faulty or restricted air flow
I replace engine but now it wont start.
does any one know how o shut off the theft system so i can drive my car it will start then die
Blown FuseDefective fan motorDefective Thermal RelayFault in the wiring
security lock out had same problem with our 2004 grand am
combustion engines need 3 things to run: fuel,spark,air
Put gas in the tank and try again.