Must be Pump. 12 VDC found right at pump connector. - Saab 9-5 Bulletin Board - Saabnet.com
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Must be Pump. 12 VDC found right at pump connector.
Posted by RegQ [Email] (more from RegQ) on Sun, 29 Aug 2010 20:17:05
In Reply to: Fuel Pump Fail? Do These Symptoms Confirm It?, RegQ, Sun, 29 Aug 2010 16:01:49
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I dug in a bit more with a digital voltmeter. I found 12 VDC shows up right at the positive and negative power pins of the electrical connector at the fuel pump.
The voltage shows up reliably for a few seconds every time I turn the ignition switch to on. The duration is the same as when I used to hear the pump run a few seconds when it worked. Must be a fixed time delay controlled by the fuel pump relay (or what controls it).
Now that I have verified power right at the pump connector, I think that pretty well confirms the pump motor must be faulty.
Time to accumulate the req'd parts!
Reg
posted by 207.161.69...
Posts in this Thread:
- Fuel Pump Fail? Do These Symptoms Confirm It?, RegQ, Sun, 29 Aug 2010 16:01:49
- FOLLOW-UP. Fuel Pump Fail. More Tests., RegQ, Wed, 1 Sep 2010 12:42:59
- Re: Fuel Pump Fail? Do These Symptoms Confirm It?, SWEDECAR , Mon, 30 Aug 2010 21:13:26
- Re: Fuel Pump Fail? Do These Symptoms Confirm It?, Dean, Mon, 30 Aug 2010 06:54:09
- Must be Pump. 12 VDC found right at pump connector., RegQ, Sun, 29 Aug 2010 20:17:05 <-- Viewing This Message
- Re: Fuel Pump Fail? Do These Symptoms Confirm It?, Rich02818, Sun, 29 Aug 2010 20:16:21
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