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Fuel Pump Maintenance Tips #4442800
06/27/17 01:13 PM
06/27/17 01:13 PM
Joined: Apr 2017
Posts: 438
Mississippi
Speak2Mountain Offline OP
Speak2Mountain  Offline OP

Joined: Apr 2017
Posts: 438
Mississippi
Give me some tips (aside from keeping gasoline levels up)on maintaining FP

Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4442810
06/27/17 01:18 PM
06/27/17 01:18 PM
Joined: Mar 2012
Posts: 1,455
San Antonio, TX
E150GT Offline
E150GT  Offline

Joined: Mar 2012
Posts: 1,455
San Antonio, TX
Probably not much


1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 251k 5w30
2016 Mazda6 Touring 6MT - 57k 10w30
2006 Buick Lucerne CXL 3.8 31k 5w30
Re: Fuel Pump Maintenance Tips [Re: E150GT] #4442815
06/27/17 01:23 PM
06/27/17 01:23 PM
Joined: Apr 2013
Posts: 2,557
The Northeast
mclasser Offline
mclasser  Offline

Joined: Apr 2013
Posts: 2,557
The Northeast
Originally Posted By: E150GT
Probably not much

True


2018 Hyundai Elantra VE
2013 Honda Pilot EX-L 4WD
2002 Honda Accord EX-L

Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4442838
06/27/17 01:45 PM
06/27/17 01:45 PM
Joined: Jan 2016
Posts: 323
Boise, Idaho
MRtv Offline
MRtv  Offline

Joined: Jan 2016
Posts: 323
Boise, 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.


2014 Nissan Versa Note 1.6 liter engine. 1997 Ford F150 4x4 4.6 liter engine.
Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4442852
06/27/17 01:58 PM
06/27/17 01:58 PM
Joined: Sep 2011
Posts: 3,448
Somewhere
itguy08 Offline
itguy08  Offline

Joined: Sep 2011
Posts: 3,448
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.

Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4442854
06/27/17 01:59 PM
06/27/17 01:59 PM
Joined: Aug 2010
Posts: 12,915
Northern Kentucky
901Memphis Offline
901Memphis  Offline

Joined: Aug 2010
Posts: 12,915
Northern Kentucky
Shell gas if you can afford it.


2012 Chevy Cruze LT 1.4T - 59k - Edge 0w30 SL + Mahle OX401D
2002 Buick Century 144k - Built 4T65e(Maxlife) - GTX 5w30 + Fram XG3980
Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4442883
06/27/17 02:41 PM
06/27/17 02:41 PM
Joined: Mar 2004
Posts: 21,834
Upstate NY
Donald Offline
Donald  Offline

Joined: Mar 2004
Posts: 21,834
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.

Last edited by Donald; 06/27/17 02:42 PM.

2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Fuel Pump Maintenance Tips [Re: Donald] #4442904
06/27/17 03:09 PM
06/27/17 03:09 PM
Joined: Jan 2011
Posts: 3,484
PV Az @ 5000'
AZjeff Offline
AZjeff  Offline

Joined: Jan 2011
Posts: 3,484
PV Az @ 5000'
Originally Posted By: Donald

To avoid fuel pump failures avoid GM vehicles around 1993.


Not hard to do really....


86 Samurai 1.3 leftovers
14 RAV4 2.5 5W-20 PP
16 Silverado 1500 4.3, DI, AFM 5W-30 PP

The most important thing to do in your life is to not interfere with someone else's life. - Frank Zappa

Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4442911
06/27/17 03:17 PM
06/27/17 03:17 PM
Joined: Jun 2017
Posts: 147
Waco, Tx.
Syntheticuser Offline
Syntheticuser  Offline

Joined: Jun 2017
Posts: 147
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.

Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4442920
06/27/17 03:28 PM
06/27/17 03:28 PM
Joined: Dec 2005
Posts: 10,899
Upper Midwest
kschachn Offline
kschachn  Offline

Joined: Dec 2005
Posts: 10,899
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, 241K
1996 Honda Accord, 267K
1999 Toyota Sienna, 409K
2000 Toyota ECHO, 280K
Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4442938
06/27/17 03:46 PM
06/27/17 03:46 PM
Joined: Mar 2012
Posts: 1,455
San Antonio, TX
E150GT Offline
E150GT  Offline

Joined: Mar 2012
Posts: 1,455
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 - 251k 5w30
2016 Mazda6 Touring 6MT - 57k 10w30
2006 Buick Lucerne CXL 3.8 31k 5w30
Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4442960
06/27/17 04:11 PM
06/27/17 04:11 PM
Joined: Apr 2016
Posts: 815
Specific Ocean
Kibitoshin Online content
Kibitoshin  Online Content

Joined: Apr 2016
Posts: 815
Specific Ocean
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.


Shin Gekiretsu Shin'ou'hou
01 Toyota Tundra 2WD V8 4.7L
02 Chevy Silverado C1500 V8 5.3L
Re: Fuel Pump Maintenance Tips [Re: MRtv] #4442998
06/27/17 05:14 PM
06/27/17 05:14 PM
Joined: Jan 2003
Posts: 1,074
Elizabeth. Colorado
c502cid Offline
c502cid  Offline

Joined: Jan 2003
Posts: 1,074
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!


16 Ford F150 2.7 Ecoboost 4x4
15 Chev Trax AWD
02 GMC 3500 8.1/Allison Dually 4x4
00 Blazer 4.3 4x4
97/98 Honda Civics
84 Chev K30 454EFI/T400/NP205 Dually 4x4
71 GMC Jimmy 502 RamJet/T400/NP205 4x4
Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4443002
06/27/17 05:17 PM
06/27/17 05:17 PM
Joined: Aug 2004
Posts: 5,155
Katy, Republic of Texas
blupupher Offline
blupupher  Offline

Joined: Aug 2004
Posts: 5,155
Katy, Republic of Texas
Drive it till it fails.


2018 Hyundai Santa Fe: Delo XLE 10w-30, OEM filter, 3k
2012 Scion xB: QSUD 0w-20, CQ Blue, 5k
2002 Ford F150: Magnatec 5w-20, Bosch D+, 1yr
1994 Honda VT1100: Peak 15w-40, PSL, 1yr
Re: Fuel Pump Maintenance Tips [Re: Speak2Mountain] #4443086
06/27/17 06:58 PM
06/27/17 06:58 PM
Joined: Mar 2016
Posts: 1,719
Toronto
PeterPolyol Offline
PeterPolyol  Offline

Joined: Mar 2016
Posts: 1,719
Toronto
TWC-3 at ridiculously dilute ratios.


There's no replacement...'scosity for natural viscosity
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