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Engine sputtering after fuel pump replacement 700 1990

posted by  Bryan on  Sat Jan 8 10:52 CST 2005
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last visit: Tue May 4 00:53 CST 2010
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Several weeks ago I noticed a whine in my 90 744ti that I traced to the in-tank fuel pump as it went away when fuse 11 was pulled. Before I was able to switch out the pump the whine would become a growl after 20 to 30 minutes of driving. I just finished installing the new pump but the whine and hesitation and bad idle are still there. I know the old pump was faulty because the ground connection was separated from the pump when I pulled it and the plastic portion of the pump where it connects was very black. Kind a scary considering where is located. I read in the FAQ that the pump ground could also the same symptom as a bad pump. I checked the only ground located in the trunk but I am not sure if that is the correct one. I will also replace the check valve tomorrow. Does any one have a suggestion?
Thanks.

--
90 744ti, Airbox, K/N, Cold air, G-Valve, Dual boost control, VDO, Modified exhaust. 88 745 gle.






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New Engine sputtering after fuel pump replacement [700][1990]
posted by  Bryan  on Sat Jan 8 10:52 CST 2005 >


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