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Fuel pump replacement a DIY project?

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The fuel pump on my 1992 US Spec 9000S recently died stranding my darling wife and daughter on the other side of town...

I had the car towed to a local garage that fixes everything (I suppose). They want about $150 more for the fuel pump than the local foreign car parts place charges, $80 for a $10 - $15 fuel filter and $240 in diagnostic/labor charges. The nearest Saab dealer with $120/hr labor rate wants 1.5 hrs, but the pump is even more money.

How difficult is it to replace the fuel pump? Can a relatively mechanically inclined person (me) with little auto repair experience (I just did the brakes and have done a number of lock motor changes and used to change the fuel filter in my C900) do this without killing himself, burning down neighborhood, etc.? I've never messed with fuel tanks, etc. other than repairing a leak in an old car 20+ years ago.

Fortunately this is our third car so I can take my time (AFAIK)...
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Very easy diy job if you buy a good 2nd hand unit with everything attached as it came out of the car. Its fairly straight forward just replacing the pump which is enclosed in its own plastic canister type resorvoir. I took mine to bits on the coffee table without any instructions...and put it back together!!

One thing that can happen is the o ring seal in the top cover sometimes expands and when you put it back it doesn't form a tight seal and when the petrol tank is full it leaks out a little bit and the fumes get into the cabin. A saab specialist told me to cut about 10mm out of the o ring and superglue back together if I had this problem...which I now have but haven't got round to fixing it!
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