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Old 09-24-2019, 11:45 AM   #1
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Angry 2002 9-5 wagon won't start

Battery OK, no codes posted. ignition on results in "check OK". twisting key to start position does nothing except flash "oil" and "check engine" lights. No code left. No sound of solenoid.

Happened about a month ago, car started OK after a few hours rest. Happened again yesterday and, again after a few hours, started OK.

Repair shop can find nothing wrong, suggests buying a new car!

but we love our wagon except for the failures to [email protected]!

Any suggestions?
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Old 09-30-2019, 11:17 AM   #2
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Quote:
Originally Posted by nbyrne37 View Post
Battery OK, no codes posted. ignition on results in "check OK". twisting key to start position does nothing except flash "oil" and "check engine" lights. No code left. No sound of solenoid.

Happened about a month ago, car started OK after a few hours rest. Happened again yesterday and, again after a few hours, started OK.

Repair shop can find nothing wrong, suggests buying a new car!

but we love our wagon except for the failures to [email protected]!

Any suggestions?
This sounds like a failed crank position sensor. It's a very common on these Trionic 7 Saab's. I would start there. I've also had loose leads on the starter cause a similar issue.

I would suggest finding a more imaginative mechanic.
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Old 09-30-2019, 11:18 AM   #3
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Old 09-30-2019, 03:14 PM   #4
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I'm reading this as: no crank/no start/no nothing.
If it's a stick shift, check bypass switch at clutch pedal.
Auto, try it in neutral when it acts up again (range switch).
Either case, check for corrosion/broken wires at the big plug under the hood at the firewall
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Old 10-02-2019, 09:00 PM   #5
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Either a range switch (neutral safety) or starter assuming the battery is good.
Since you have no 'key not accepted' message I'll rule out immobilizer.
If you want to eliminate one or other and you are good at following directions....then get a test light. Identify the yellow lead going to the solenoid on the starter. Connect the grounding clip of the test light to a good metal surface on the engine....touch the probe end where that yellow wire is connected and have somebody turn the key. if it lights the neutral safety is good and power is getting to the solenoid. The starter is then in need of replacement...provided the large battery cable is good, connected and has battery voltage.
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