SOURCE: I have a Saturn Ion 2006 - twice in 10 days the
Even if the battery is low or has weak connections, there is enough power for accessories but not enough to turn the motor over. A bad solenoid will also cause this
SOURCE: 2003 Saturn Ion will not start. Security lock is on.
The fix for this problem is well known, so is the cause. GM needs to step up in my opinion. You can fix it yourself if you're willing
http://moontaj.com/passlock
SOURCE: 2006 Saturn ion 2 won't start.
You will have to pinpoint what the engine is missing...
- Spark
- Fuel
- Compression
All three of these are tested when the engine is being cranked over. There are two way of checking for fuel. Fuel pressure and fuel trigger. Both are very important and must be present for the engine to start. Fuel pressure is self explanatory. You just hook up the gage and see what the reading is. Fuel trigger is check with a noid light. The injector gets unplugged and the noid light gets plugged in to the injector clip. With the engine cranking over, this light must blink. This is the signal to the injectors from the computer. You can have all the fuel pressure in the world, but it wont matter if the injector is not pulsing gas into the cylinder like it should.
Compression tester, spark tester, fuel pressure gage and noid light are all accessible at your local auto store. All three tests play a very important part in diagnosing a no start condition. Be extremely careful when doing these tests.
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