15
Dec
First check to see it if your car has any spark. If the engine turns over without as it should then the problem may be in the ignition or fuel system.
A number of things can cause this but it sounds like the fuel pump check valve may be at fault.
What does it mean when an engine turns over. When your engine starts your battery sends an electrical pulse to your spark plugs which causes the initial ignition. This then drives your crankshaft which allows your engine to start moving. This is what the term turning over means - it refers to the movement of the crankshaft after the initial ignition.
Generally turning over is used as a diagnostic tool when. What happens when an engine starts. When the key is turned the starter motor turns the engine over which means it turns the crankshaft which in turn gets the pistons moving in the cylinders.
This starts the engine cycle. Air and fuel is drawn into the cylinders it is compressed and the then the spark plugs fire. When your engine starts your battery sends an electrical pulse to your spark plugs which causes the initial ignition.
This then drives your crankshaft which allows your engine to start moving. This is what the term turning over means it refers to the movement of the crankshaft after the initial ignition. Generally turning over is used as a diagnostic tool when.
What does it mean when your engine turns over but wont start. When your engine cranks but wont start or run it could mean your engine is having trouble producing a spark getting fuel or creating compression. In order to run an internal combustion engine.
So if the car will turn over starter will rotate the engine but not start. It means that one or more of these necessary factors is missing. Easiest to check is Air.
Make sure theres no blockage at the intake or air filter housingor in the ductwork between the two. Fuel is a little more difficult. A number of things can cause this but it sounds like the fuel pump check valve may be at fault.
When you shut the car down the check valve keeps pressure up in the fuel system. If its faulty or stuck then when you shut the car down fuel may be bleeding back to. There are plenty of reasons that a modern motor will turn over but will not crank up.
Dont worry about all of those hundreds of parts that could cause this problem. Focus instead on the basics. Does your engine have fuel and does it have spark.
Those are the only two things you engine needs to run. First check to see it if your car has any spark. So your engine turns over but will not start.
It usually means your engine is having trouble with spark fuel compression or timing. So what do you do if all those things check out good. But the engine still wont start.
The source of the problem could be a mechanical fault or a faulty component in other systems. In order for an engine to run you need a Spark Fuel Compression and t. Here is a step by step procedure on how you can Diagnose a Crank no start condition.
If the engine turns over without as it should then the problem may be in the ignition or fuel system. Check the spark and fuel pressure first. I have an 06 Dodge Durango that wont start.
It gets stuck in the crank and the power light comes on then the service engine light. Turn over in British English. To change or cause to change position esp so as to reverse top and bottom.
To start an engine esp with a starting handle or of an engine to start or function correctly. To shift or cause to. If your engine is running above an idle like driving down the road an engine hydrolock will have dire and extensive consequences.
The force behind the pistons moving upward can bend the connecting rod crack the crankshaft cause fractures in the cylinder walls blow oil seals in the cylinder head and more. If your engine cranks or turns over when you put the key in the ignition and turn the key the most likely culprit is actually a dead battery. Although you have done the tests and determined the battery is not the culprit most of the time the battery is the cause of the issue if the engine cranks and makes noises.