Why are the lights on but not the engine?
The reason why the radio, the dashboard warning lights, the headlights, and other electrical components can get power while the engine cannot has to do with an interrupted path of flow of power directed towards the engine.
What to do if your car won’t start but Lights Come On?
If the battery is dead and not working correctly, you will need to get a replacement or repair the battery. Sometimes, you need to decide if it is better to repair or replace the battery depending on your car’s value, and the cause of the “car won’t start, but lights come on” situation.
Why does my car not start when I Turn on the engine?
Another cause of the car not starting can be a ground cable problem. If the ground cable between the body and the engine is bad, the power flow will be cut off and restricted. This means that the engine power will not be able to crank the engine.
What do I do when my Sierra won’t start?
Just feeling around on the other relays the only one clcking is the run/crank relay when the key is turned on. Do you have a test light? If so then it is best to test at the small stud at the starter when the key is in the start position.
What does no start no crank no click mean?
If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that. In the old days, power flowed through the ignition switch and down to the starter solenoid. Not anymore.
The reason why the radio, the dashboard warning lights, the headlights, and other electrical components can get power while the engine cannot has to do with an interrupted path of flow of power directed towards the engine.
If the battery is dead and not working correctly, you will need to get a replacement or repair the battery. Sometimes, you need to decide if it is better to repair or replace the battery depending on your car’s value, and the cause of the “car won’t start, but lights come on” situation.
What to do if your car is not cranking?
If the car’s not cranking then first check it can turned over by hand by using a socket on the crank pulley nut, so double checking for any mechanical issues If OK then check that the main battery cables are on tight and the terminals are clean and bright. Do the same for the engine / gearbox earth strap.
What does it mean when your car won’t turn over but Lights Come On?
No Spark – if your car will crank, but not turn over, but your lights come on, then you might not be getting a spark to the engine even though your electrical components are working. A spark needs to be used to ignite the fuel, letting the car start.
Why does my car have power but won’t start?
The material that builds up around a terminal is less conductive than the terminal itself and the reduced charge may not be enough to give the engine the boost it needs. Another test for the battery is to turn the headlights on to low beam and crank the engine over. The headlights should go only a little duller.
What does it mean if your spark plugs are not working?
If the spark plugs are not working correctly, you might feel your car cranking but cannot turn over the engine or start the vehicle. If you hear cranking, but your car won’t turn over but has power, this could be signaled by loud cranking.