I have changed the spark plugs, had the ignition coil pack and module checked out okay and the fuel pumps okay. BUT still no start. Someone mention a "chip"(?) - What is it and where or how do I check it out without having it towed to a licenced mechanic which I cannot afford. Is there something else I am missing?
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I have a 97 Pontiac Sunfire 2.2liter- cranks over but won't start.?
- Thread starter george a
- Start date
You need 3 elements to make a motor run: Air, Spark, and Fuel
Spark- you already changed the plugs and had the ignition coil checked out, so we can eliminate that. Just make sure all the wire are correctly placed on the distributor.
Air- I doubt anything is prevent air from going into the combustion chambers. eliminate that
Fuel- 1) Make sure you have gas. 2) Check that your fuel filter isnt clogged. 3) Make sure your getting fuel pressure on the rails. On your fuel rail (where the fuel injectors connect to) their should be a shraeder valve. It looks like valve stem on a bike tire or car tire. Depress the pin; if you get a mist of fuel, you have pressure. If you dont get any fuel, or it leaks out slowly, this indicates a faulty fuel pump. 4) when you turn the key to the on position (but not turning the engine over), listen careful and see if you can hear the fuel pump cycle. If not, faulty pump. 5) check fuel pump fuse
Spark- you already changed the plugs and had the ignition coil checked out, so we can eliminate that. Just make sure all the wire are correctly placed on the distributor.
Air- I doubt anything is prevent air from going into the combustion chambers. eliminate that
Fuel- 1) Make sure you have gas. 2) Check that your fuel filter isnt clogged. 3) Make sure your getting fuel pressure on the rails. On your fuel rail (where the fuel injectors connect to) their should be a shraeder valve. It looks like valve stem on a bike tire or car tire. Depress the pin; if you get a mist of fuel, you have pressure. If you dont get any fuel, or it leaks out slowly, this indicates a faulty fuel pump. 4) when you turn the key to the on position (but not turning the engine over), listen careful and see if you can hear the fuel pump cycle. If not, faulty pump. 5) check fuel pump fuse