A bad Crankshaft Position sensor is a common cause of no starts. The signal from this sensor goes to the PCM or ignition module that switches the ignition coil(s) on and off. If you have an RPM signal, a bad ignition module or PCM may not be switching the coil(s) on and off.
Why won't my car start but has power?
A failure of the starter motor can be a reason why your car won't start but has power. ... To confirm that it is indeed a starter motor issue, you can diagnose a dead battery or alternator. If these are working, and the engine won't crank at all, the starter motor is most likely your culprit.Aug 5, 2021
How do you tell if its your starter or your battery?
Last, Check The Starter The battery sends a burst of energy to the start which uses this energy to turn the engine over and get it car started. If you put the key in the ignition, but only hear a click when you turn the key, you've got a problem with your starter.Aug 15, 2018
When I turn the key nothing happens no click?
If nothing happens when you turn the ignition key to the "Start" position, it means that the starter motor doesn't turn over the engine. Most commonly this could be caused by a dead battery; read above How to check the battery.Jul 7, 2021
What does it mean if your lights come on but wont start?
Broken or Damaged Ignition If your headlights can turn on, but your car won't crank, that means that your battery is charged, but either the starter or ignition is the problem. If the starter or ignition is the problem, a starter engine can be jumped by using a charged battery.Feb 7, 2017
Why wont my car start but the radio and lights work?
If the lights and/or the radio come on but the car does not start, you may also have dirty or corroded battery terminals. The terminals are what connect the electrical system to the battery. ... If you can get the car started by jumping it, it's a good bet that your battery was the problem.Aug 16, 2020
How do you fix a car that doesn't start?
- What To Do If Your Car Won't Start: ...
- Try: Cycling the Key. ...
- Try: Tapping on the battery Terminals. ...
- Try: Smacking the starter. ...
- Try: Shifting the Shifter. ...
- Try: Swapping Relays. ...
- Try: Smacking the Fuel Tank. ...
- Try: Un-flooding a flooded engine.
How do you diagnose a car that won't start?
- 1) Is the engine cranking? ...
- 2) Check the trouble code memory. ...
- 3) Check the crankshaft/camshaft sensors. ...
- 4) Check the fuel pressure. ...
- 5) Check the spark from the ignition coil. ...
- 6) Check if the injectors are opening. ...
- 7) Check the crankshaft/camshaft timing. ...
- 8) Check compression/leak down test.