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Old 02-12-2014, 08:42 PM   #1
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Default fuel pump replacement ; jack spot

Buick le sabre 2000 stock w/ upgrades


1.
Does the electircal plug need to be swapped with the new included one for the connection plug to work on the Delphi FG0162
or Acdelco MU1791 fuel modules, or is it just in case?

Noticed a video by airtex specifying that for their product.


2.
Relieve Fuel pressure - take out Micro Relay #39 Fuel Pump. Do you take out Minifuse #1 Fuel pump?

Relieve shrader valve, as well.


3.

Plan to replace the fuel filter then straight to fuel pump module replacement without doing fuel pressure build up after fuel filter replacement.
No problem?



4.
is there a safe middle ground for a floor jack to lift both front or bad wheels up to put the jackstands?

Manual doesn't specify. Best remark i found was a person used two floor jacks to lift on both side line rail. close to lips.
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Old 02-13-2014, 07:49 AM   #2
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1, the harness is included in cars where they have seen repeated failures of the stock plug. so that needs to be done on cars that come come with it. and you cant use splices or any other type of crimp, they need to be soldered well and heat shrunk.

2 you can remove either the fuse or relay either will prevent the pump from turning on

3 not sure what you are talking about, but if you replace the filter make sure that you put a pan under it because the gas is still in the lines

4 i normally jack the car from the middle in the back, most cars have a raised flat piece of frame between the rear control arms, then put jackstands under the frame on both sides
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Old 02-13-2014, 06:20 PM   #3
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thanks,


the fuel pump hasn't gone bad. it is just the fuel level sensor.


so i likely should not expect a failure with an ac delco product with a gm car ?


can the harness be accessed without taking off the fuel tank ?
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Old 02-13-2014, 07:37 PM   #4
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why are you jacking the car ??? There is an access panel in the trunk to remove the fuel pump
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Old 02-13-2014, 07:46 PM   #5
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I do my fuel filter I jack fro the front behind the front wheel on the jack point...this jacks the whole side...I put a 3ton jack stand under the rear point and let the weight of the car down on the stand and floor jack..

I then pull the fuel pump fuse under the rear seat and start the car and let it die,,,then using a line wrench and box end remove and install ...pretty easy...
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Old 02-13-2014, 08:30 PM   #6
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all i meant was after the fuel filter is installed would there be any reason to check if all is ok(put relay back in , put key in on and off position, check if leak) before installing the fuel pump
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Old 02-13-2014, 09:40 PM   #7
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I wouldnt worry about i,,,ive never had one leak,,,the filters are pretty easy and straight forward...supposed you could check it right after...one end has a snap in connector other end is tapered threaded
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Old 02-13-2014, 10:34 PM   #8
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so does a new acdelco fuel pump connect with the gm le sabre original harness ?
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Old 02-14-2014, 08:40 AM   #9
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the quick connect side of the filters leak all the time for me, probably 50-50
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Old 02-14-2014, 04:19 PM   #10
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I must just be lucky...I just clean everything good and push it in and never had one leak...i just looked at my maintenance log for last 3 Buicks..my current Lesabre,old Park Ave, and my Bonneville...I chg them every 25k. ive changed about 20....again never had a leaker.....what do you do when your leak ???
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