Re: No start on a '99 9-3 - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: No start on a '99 9-3
Posted by bill h. (more from bill h.) on Thu, 3 Jan 2013 07:46:31
In Reply to: No start on a '99 9-3, Noel, Thu, 3 Jan 2013 07:26:59
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Hi Noel,
Sounds like a fuel pump. The DI failures typically give a warning, rough idle, poor running, misfiring and a check engine light ( CEL) You can read it with a OBD code reader.
If the car has more than 125k on it with the original pump, it can fail anytime. This is easy enough to check. Raise the lower back seat base, put ear to round pop out plug this is very near the fuel pump and listen for fuel pump humming noise as key is turned to start position. Also check fuses and relays, see manual for location and identification. Fuel pump failures do not set off CEL.
Crankshaft positioning sensor could also be bad, a common failure on these cars. But sometimes the car will restart if you wait a bit. Any way you can get a Saab tech to look at it?
ECU failures are much more rare.
posted by 24.42.180...
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