Check fuel pressure and injector pulse...if everything is working than check the timing and the firing order...if it good than check the engine compression....
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If your 1999 Saturn SL turns over but won't start, there could be a few different reasons why. Here are some possible causes:
Faulty fuel pump: The fuel pump is responsible for delivering fuel from the tank to the engine. If it's not working properly, the engine won't receive enough fuel to start. You can check if the fuel pump is working by turning the key to the "on" position and listening for a humming sound coming from the fuel tank. If you don't hear anything, the fuel pump may be faulty.
Dead battery: If the battery is dead, the engine won't have enough power to start. You can try jump-starting the car to see if that helps.
Ignition system problems: If the ignition system isn't working properly, the engine won't start. This could be caused by a faulty ignition coil, distributor, or spark plugs.
Clogged fuel filter: If the fuel filter is clogged, fuel won't be able to flow properly to the engine. This can cause the engine to stall or not start at all.
Bad crankshaft position sensor: The crankshaft position sensor tells the engine control module (ECM) when to fire the spark plugs. If it's not working properly, the engine won't start.
These are just a few possible causes of a Saturn SL that turns over but won't start. It's best to have a qualified mechanic diagnose the problem to ensure that it's fixed correctly.
You should have a trouble code or codes for the cylinder that is not producing power. Once you know which cylinder, you need three things to make power. Spark, fuel, and compression. One of the three components is lacking, such as a faulty injector or mechanical problem.
If the engine fires up for a second or two with starting fluid then the fuel pump is weak.I would check the fuel pressure and if its not within the specs then replace the pump and filter.
Could be one or more of many grips.
1. Fuel tank empty.
2. Battery discharged.
3. Battery terminal connections loose or corroded.
4. Leaking fuel injectior(s), faulty fuel pump, pressure regulator, etc.
5. Fuel not reaching fuel rail or TBI unit.
6. Ignition components damp or damaged.
7. Worn faulty or incorrectly gapped spark plugs.
8. Broken, loose or disconnected wiring in the starting circut.
9. Broken, loose or disconnected wires at the ignition coil or faulty coil. 10. Broken timing Chain.
11. Engine coolant temperature sensor defective.
12. Crankshaft postition sensor defective.
to unflood your engine you can just leave it alone overnight or take out the spark plugs and dry them off yourself but be sure to label your wires. if it is fuel injected you dont need to push the gas pedal to start it. as far as it not starting it could be its either not getting a spark or not getting any fuel you can check for a spark with a spark tester found at auto parts stores and to check for fuel they have a tester for that as well which if faulty will lead to fuel filter and or pump replacement if no spark then it could be the coil or plugs
you have spark and fuel pump primes when u turn the key / the timing chain has proper deflect but did it slip .sounds like the timing is off it may have spark but if timing has gone out it wont start either make sure it's in time next..
Need to do a compression test to see if all 4 cylinders are operating properly. A loss of engine power is usually a result of wear on internal engine rings and seals.
hahaha thanks
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