Re: Update on fuel pump replacement - Saab 9-3SS Bulletin Board - Saabnet.com
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Hi Anders, thanks for the detailed reply. I apologize for omitting model info on such a long thread--it is an '08 9-3 V-6. The fuel pump was replaced only because I had been living with a faulty sender for well over a year and tired of the "guessing game". There were never any problems/codes prior to installing the new pump unit.
So, if the 2.0 pump and 2.8 pump cannot be interchanged then that eliminates that from my list to chase down. That leaves a faulty Fuel Pressure Sensor, or an air leak at the lock ring (I know the tech did not get to the "last click" when installing the unit-he did not use the tool).
If the pump was replaced after 85k/10 years due only to the sender failure(as was in my case), do we assume that the original pump was "worn" and screwed up the fuel pressure sensor when a new fuel pump was installed? Very curious-how is it affected?
NOTE: The fuel pressure sensor has about 20k on it. I remember a P0089 code and DIY job for that.
I'll first have the shop replace the FP sensor and see if the code disappears. If not, we'll drop the tank and tighten the lock ring.
->Posting last edited on Wed, 13 Mar 2019 17:13:19.
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