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#4442800 - 06/27/17 01:13 PM Fuel Pump Maintenance Tips
Speak2Mountain Offline


Registered: 04/07/17
Posts: 347
Loc: Mississippi
Give me some tips (aside from keeping gasoline levels up)on maintaining FP

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#4442810 - 06/27/17 01:18 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
E150GT Offline


Registered: 03/11/12
Posts: 1110
Loc: San Antonio, TX
Probably not much
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1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 250k 5w30
2016 Mazda6 Touring 6MT - 56k 10w30

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#4442815 - 06/27/17 01:23 PM Re: Fuel Pump Maintenance Tips [Re: E150GT]
mclasser Offline


Registered: 04/13/13
Posts: 2233
Loc: The Northeast
Originally Posted By: E150GT
Probably not much

True
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2018 Hyundai Elantra VE -- 3K
2013 Honda Pilot EX-L 4WD -- 55K
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#4442838 - 06/27/17 01:45 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
MRtv Offline


Registered: 01/04/16
Posts: 207
Loc: Ada county Idaho
Actually one of the main reasons I use MMO in my fuel. My fuel pump is in the fuel tank and replacing it will be a problem if I ever have to. So I use MMO to lubricate the pump and hopefully, I say hopefully, never have to worry about it.
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2014 Nissan Versa Note 1.6 liter engine. 1997 Ford F150 4x4 4.6 liter engine.

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#4442852 - 06/27/17 01:58 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
itguy08 Offline


Registered: 09/15/11
Posts: 3227
Loc: Somewhere
Originally Posted By: Speak2Mountain
Give me some tips (aside from keeping gasoline levels up)on maintaining FP


Nothing. Not even "keeping gas levels up". May have helped in the past (but doubtful) but as long as you don't run it out of fuel there is always something cooling the pump.

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#4442854 - 06/27/17 01:59 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
901Memphis Offline


Registered: 08/14/10
Posts: 12893
Loc: Northern Kentucky
Shell gas if you can afford it.
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2012 Chevy Cruze LT 1.4T - 50k
2002 Buick Century 130k - Built 4T65e(Maxlife) - Edge 0w40 + Fram XG3980

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#4442883 - 06/27/17 02:41 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
Donald Offline


Registered: 03/21/04
Posts: 20469
Loc: Upstate NY
Forget the MMO for almost anything.

Fuel pumps fail due to lack of cooling. Fuel running through the pump cools it. Suck air and no cooling, possible fuel pump damage.

To avoid fuel pump failures avoid GM vehicles around 1993.


Edited by Donald (06/27/17 02:42 PM)
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2015 Subaru Forester 2.5 engine/CVT
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#4442904 - 06/27/17 03:09 PM Re: Fuel Pump Maintenance Tips [Re: Donald]
AZjeff Offline


Registered: 01/14/11
Posts: 2654
Loc: PV Az
Originally Posted By: Donald

To avoid fuel pump failures avoid GM vehicles around 1993.


Not hard to do really....
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86 Samurai 1.3 leftovers
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#4442911 - 06/27/17 03:17 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
Syntheticuser Offline


Registered: 06/11/17
Posts: 147
Loc: Waco, Tx.
I never run less than 1/4 tank. I ALSO recommend that you change your fuel filter if it has one. The posts above me did not mention it. I can watch the duty cycle of the fuel pump on my vehicles through TP. I have watched it drop by 15% JUST changing the filter. I'm sure it runs hotter on a restricting filter. ...it will push and push trying to Maintain a set pressure, drawing more current little by little and burn itself out when the filter restriction gets to much.
PS the only data I have to back this up is the duty cycle numbers from the TP app. I know some of you guys will try to shoot holes in my theory and not have a valid reason. My numbers are at 105k miles DC = 47%. New filter DC =31%. Same conditions...same day.. just changed the filter= less load on the pump.

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#4442920 - 06/27/17 03:28 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
kschachn Offline


Registered: 12/26/05
Posts: 9420
Loc: Upper Midwest
As others have mentioned I also don't think the "keeping the tank above 1/4" has anything to do with it. My custom is to run right down to empty virtually every time, and my fuel pumps are fine.
_________________________
1994 BMW 530i, 227K
1996 Honda Accord, 262K
1999 Toyota Sienna, 394K
2000 Toyota ECHO, 267K

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#4442938 - 06/27/17 03:46 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
E150GT Offline


Registered: 03/11/12
Posts: 1110
Loc: San Antonio, TX
I run down to the point where the light comes on in the Mazda. The truck I don't mess around with because I don't trust the 22 year old fuel gauge. I hate being stranded and I really hate being stranded for dumb reasons.
_________________________
1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 250k 5w30
2016 Mazda6 Touring 6MT - 56k 10w30

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#4442960 - 06/27/17 04:11 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
Kibitoshin Online   content


Registered: 04/19/16
Posts: 698
Loc: Kaiōshinkai
Plan to change fuel pump as PM. The OEM fuel pump in my 02 Silverado went out at 98,000mi during a mission critical job so I threw in another OEM pump and plan to replace it at 190,000mi. Also replace fuel filter every 3 years.
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Shin Gekiretsu Shin'ou'hou
01 Toyota Tundra 2WD V8 4.7L - 170k mi
02 Chevy Silverado C1500 V8 5.3L 154k mi

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#4442998 - 06/27/17 05:14 PM Re: Fuel Pump Maintenance Tips [Re: MRtv]
c502cid Online   content


Registered: 01/17/03
Posts: 1003
Loc: Elizabeth. Colorado
Originally Posted By: MRtv
Actually one of the main reasons I use MMO in my fuel. My fuel pump is in the fuel tank and replacing it will be a problem if I ever have to. So I use MMO to lubricate the pump and hopefully, I say hopefully, never have to worry about it.


+1!
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17 SuperDuty 6.2 4x4
15 Chev Trax AWD
02 GMC 3500 8.1/Allison 4x4
00 Blazer 4x4
97/98 Civic's
84 Chev K30 454EFI 4x4
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#4443002 - 06/27/17 05:17 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
blupupher Offline


Registered: 08/27/04
Posts: 4426
Loc: Katy, Republic of Texas
Drive it till it fails.
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1994 Honda VT1100C: Peak 15w-40/TG/2500 mile OCI
2002 Ford F150: GTX HM 5w-20/EcoGard Syn/1yr OCI
2012 Scion xB: QSUD 0w-20/CQ Blue/5k OCI


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#4443086 - 06/27/17 06:58 PM Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain]
PeterPolyol Offline


Registered: 03/06/16
Posts: 1345
Loc: toronto
TWC-3 at ridiculously dilute ratios.

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