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Old 05-14-2017, 04:53 PM   #6
fdryer
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Join Date: Jan 2006
Location: NYC
Posts: 39,216
 

2003 L-Series 3.0L Sedan
Default Re: Won't crank after disconnecting battery?

Check your owners for info if factory security prevents starter operation. Ions have a starter interrupt if the factory theft deterrent system is activated, preventing the starter from cranking the engine. Outlooks may be like most Saturn models, preventing injector operation when security is flashing its indicator while starting (starter will run). Owners manual; http://www.gm.com/owner-assistance/saturn.html.

There is one definite start method to eliminate factory security but requires crawling under the vehicle for starter access; only performed under specific situations like testing starter operation with or without the ignition system turned on by powering the starter right at the starter terminals. All starters have two terminals, one for battery power and the other for the START signal whether directly from the ignition switch or thru electronics (call it smart start for pushbutton or remote start). To test the starter whether you want ignition ON to allow the engine to run or OFF for testing starter only; simply use a screwdriver to short the battery cable terminal to the smaller terminal. The small terminal is the START/12v signal used to power the starter solenoid that begins starter operation. Be aware of the starter operating while you're under the vehicle and use good judgement about safety (e-brake pulled, in Park). A safer test method would be two long wires, each one clipped to the battery and small terminal with the other ends away from the vehicle and simply touched together - this is same as turning the ignition switch to the START position. As long as the screwdriver is held in place across the two designated terminals or wires are held together, the starter should come to life. If nothing, bang the starter body with a piece of 2 x 4 lumber or large rubber mallet a few times and try the starter again. You may have a worn out starter that may operate again.

If the starter needs 'hammering' to get it to run then the starter is worn out and needs to be replaced. If your Outlook uses the computer to startup, a fuse protecting relay contacts may be blown. A reader may not communicate if 12v fused power is blown. Check for blown fuses as serious repairs like timing belt replacement can sometimes blow a fuse unintentionally.

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