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Old 08-28-2013, 07:31 AM   #1
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Fuel Pump time?

92,000 miles. Seems to be hitting a wall at 4500 rpms. Also seems that the "aftermarket" pump assemblys are all on back order via the usual suspects.

Anybody have any input?

My plan is to Car-part an assembly and install a 255 and swap that in. 06 and up cars have a diff pump assembly, intank filter, and no floor hole. Fun times.
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can be prone to failure due to increased localized stresses in the hole penetrations
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Old 08-28-2013, 07:33 AM   #2
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I always thought that they just up and died, they didn't slowly deliver less fuel.
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Old 08-28-2013, 08:14 AM   #3
 
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Sometimes the first sign is an inability to deliver fuel at higher RPMs, leading to the boost cut. From then on, it's just a matter of time...

But 92K miles is still a bit young for a fuel pump...maybe a bad wastegate actuator?
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Old 08-28-2013, 12:58 PM   #4
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Even if you use a Used "bucket" with a new fuel pump inside. We are still going to install a new fuel level sender as well. The sender is the same part that comes in the sport sedan, The assembly is different but the sender is the same part, Cheap & fails on a regular basis. Hopefully that will save pulling the tank twice.
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Old 08-29-2013, 06:31 AM   #5
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I always thought that they just up and died, they didn't slowly deliver less fuel.
I can't speak for the saabs, but I did have an '89 Chevy Celebrity where the original fuel pump stopped putting out the right pressure randomly and the car would start driving like it was missing 2 of the 6 spark plugs. Played with the throttle enough and it would eventually start running well again. I drove it like that for 4 months and swapped ignition coils, plugs, wires, and the ECU until I was finally able to figure out what the problem was.
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Old 08-29-2013, 08:09 AM   #6
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Good to know, I just ordered the evap hose it needed, a walbro 255, and a junkyard assembly for $65. Will add on the sender too if you don't have one.
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Quote:
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can be prone to failure due to increased localized stresses in the hole penetrations
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Old 08-29-2013, 08:20 AM   #7
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Ben - I have a fuel assembly for a 9-5... you need it?
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Old 08-29-2013, 06:47 PM   #8
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Ben - I have a fuel assembly for a 9-5... you need it?
Ben's Car is more similar to a sports sedan fuel system vs, A nice early servicable 'up to 05" saab design. Around 06 or 07 somewhere the tank & fuel pump changed to the later style.
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