skidxr6t skids Donating Members 2,754 Member For: 12y 1m 15d Gender: Not Telling Posted 21/09/13 08:33 AM Share Posted 21/09/13 08:33 AM (edited) Just noticed today my fuel pump has become noisy. (EDIT: THIS BELONGS IN THE FUEL SYSTEM FORUM, MY BAD). - It doesn't seem to do it all the time- only notice it on idle after a drive when I'm sitting idling it just seems to be a bzzzzzzzzzzzzzzzzzzzzzt sound exactly like the fuel pump priming sound. When I turn off ignition it seems to continue for like half a second but the same note. Car runs fine, does not seem lacking in power however the past few weeks it has been getting 91 octane and the tank has been getting drained to empty then refueled. I also have a heavy right foot that does not care how much fuel the car has unless it is bang on empty. I start driving real steady when fuel light comes on but still give it the beans.How hard is it to remove that rear seat and get to the fuel pump? Can I upgrade the fuel pump while still running stock tune?Cheers. Edited 21/09/13 08:37 AM by johnxr6t Link to comment Share on other sites More sharing options...
XtRmn8 570Nm @1800rpm Donating Members 2,441 Member For: 21y 4m 22d Gender: Male Location: Perth, WA Posted 21/09/13 10:56 AM Share Posted 21/09/13 10:56 AM Heavy right foot plus 91 octane is not a good combo. Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 4m 21d Gender: Male Location: Perth Posted 21/09/13 11:14 AM Share Posted 21/09/13 11:14 AM Last fuel filter change? Link to comment Share on other sites More sharing options...
skidxr6t skids Donating Members 2,754 Member For: 12y 1m 15d Gender: Not Telling Posted 21/09/13 01:46 PM Author Share Posted 21/09/13 01:46 PM (edited) About 2000km ago the fuel filter under the car was done. There is one on the fuel pump itself too I thought? It runs good enough on 91 octane versus the difference paying for 98. I ran a lot of 98 through it and I really think unless its tuned theres no point. Even considering a 95 octane tune in the end. I seem to get about the same mileage per tank regardless of octane. Edited 21/09/13 01:47 PM by johnxr6t Link to comment Share on other sites More sharing options...
jas98 Member 1,046 Member For: 12y 6m 21d Gender: Male Location: Maryborough Qld Posted 23/09/13 02:28 AM Share Posted 23/09/13 02:28 AM if it turbo I sould not use 91....did it once not knowing what fule was recomoned and it ran like a dog, so now I just use 95 as 98 seems to get less econamy?anyway my pumps a little noisey aswell. Has anyone used united 100 in a ba xr6t stock? Link to comment Share on other sites More sharing options...
skidxr6t skids Donating Members 2,754 Member For: 12y 1m 15d Gender: Not Telling Posted 23/09/13 02:42 AM Author Share Posted 23/09/13 02:42 AM (edited) It hammers on 91 and I get the same fuel economy if I go and put 98 in. I'll get it 95 tuned, I always wanted it to be 98 octane tuned but it annoys me trying to find the 98 bowser at some servos. I'm getting a slight rough idle lately so might try putting some 98 in and see if that corrects this. I'm just gonna go buy a standard fuel pump and make sure I've got the tools in the boot if this fails while I'm driving. Did an alternator on side of the road, suppose a fuel pump can't be too must to take on. Edited 23/09/13 02:50 AM by johnxr6t Link to comment Share on other sites More sharing options...
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