Question about 2003 Saab 9-3
The Superior Voltage warning is the Voltmeter. You normally have 13.2 to 13.6 Volts as the stand alone Voltage. Charging can reach a maximum of about 14.2 Volts. When you have less than 12 Volt you have a problem.
If you are at idle, with many things turned on, you can fall to an 11 something Voltage but it should quickly climb as RPM increases.
Your Regulator is not allowing the Alternator to work or the Alternator is just not putting out. Most newer Alternators have a built-in regulator. Most are not serviceable. The output can be checked on the car, usually free, at Autozone, Advance, or Oreilys.
Posted on Dec 11, 2012
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Posted on Jan 02, 2017
There are a couple of reasons why you are experiencing these concerns. The following are examples of what can be wrong or malfunctioning with your Saab. First check the idle air control valve. This valve controls the amount of air being distributed to your Intake manifold by bypassing the throttle body. This valve is controlled by the computer, make sure the wiring is ok and connected correctly. If you wish to clean the valve you can but make sure you use a carb cleaner or equivalent and remove all the debris and chemical. Secondly the fuel pump.
The fuel pump is hard to diagnose because it can lead you around other concerns like the ignition system. One way to check the fuel pump is to use a test light on the fuel pump circuit. On the 900se it should be fuse #37(not absolutely positive) while the car is running you can check the fuse. If there is power in the circuit and the engine wants to die out check the wiring for the fuel pump all the way to the tank. If there is no continuity than repair the wire that is damaged there should be continuity on all the wires. If all checks out ok but it keeps failing change the fuel pump. If you find that the fuse blown on the fuel pump circuit check the wiring if it is ok change the pump.
There are many things to check on your saab hopefully you find this helpful.
Posted on Aug 11, 2009
SOURCE: Saab 93 1.9 tid warning
The easiest way to check is with the car running, disconnect the positve side of the battery, if the car dies, then it is the altenator, if the car keeps running then it is the battery. If you have a volt ohm meter, check the chrge going to the battery you should get between 12 and 14 volts if it is lower than 12 you have an altenator issue. the altenator should always produce enough to charge the battery and run the car at the same time, if not then the battery wears down.
Posted on Mar 13, 2011
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