Whining fuel pump? - Defender Source
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  #1  
Old February 21st, 2006, 03:06 PM
jdb3760
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Jake Buinewicz
95 Defender 90 softtop
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Whining fuel pump?

Recently, I was offroading and slipped off a rock and landed the front of the d-90 on a rock. The rock hit the front skid or the ARB bumper. Now after all this I have noticed that there is a loud whining noise that comes from the rear of the truck. It sounds like it is coming from the gas tank. Has anyone had this problem before and is there any simple fix to this?
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  #2  
Old February 21st, 2006, 03:10 PM
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Mike Hippert
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Sounds like the fuel pump is on it's way out! Head down to the auto parts store and pick up a fuel pump for an 87 Chevy caviler, should be around $80 and it is nearly identical to the one in there. The hardest part about replacing it is dropping the skid plate to get the gas tank down.
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  #3  
Old February 21st, 2006, 03:12 PM
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Jake Buinewicz
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Just to be sure before I start with this replacement will I need to drop the tank? I just want to know if I should empty the tank or if I can just prop it up with jack stands.
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  #4  
Old February 21st, 2006, 03:16 PM
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Yep, going to drop the tank for sure. And while you don't need it empty empty, down to the last gallon or so will really help you out a lot. Gas is about 8.5 pounds per gallon, no need to have that extra 115lbs in there if it can be avoided.

-Hans
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  #5  
Old February 21st, 2006, 08:19 PM
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Jake Buinewicz
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Does the fuel pump comes off of the 2.8l v6 or the 2.0l four cylinder? They both seem like their fuel pumps wouldn't be able to keep up with a 3.9l v8 but I'm trusting you guys here.
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  #6  
Old February 21st, 2006, 08:28 PM
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I thought it was a CADDY fuel pump that would replace the stocker unit?
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  #7  
Old February 21st, 2006, 08:47 PM
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Somewhere I've got the measurements and pictures of cutting a hole in the bed to access the pump if you're interested . . . moroso makes an access panel that works well to cover the hole back up.
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  #8  
Old February 21st, 2006, 09:27 PM
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Jake Buinewicz
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If you could post or pm the pics and the link that would be great. Does anyone know for sure what pump will work? I guess I should try to get this in asap before the pump goes bad on me. Thanks guys for the help or I would probably be paying an arm and a leg at the landrover dealership.
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  #9  
Old February 21st, 2006, 09:38 PM
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I use a NAPA #P74006. I also replace the sock filter. It is a pump for a 3.8L GM application. I have several customers running these with no problems.
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  #10  
Old February 21st, 2006, 09:49 PM
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Note that I didn't do this, this was sent some time ago by Mike Hill.

If you can't read the yardstick, the front edge of the hole is 7-1/2 inches from that first ledge where the carpet comes to

and is centered between the wheel wells.

The hole was 8 inches wide

and 7 inches front to back. I did grind down the rough edges and painted them with some green touchup paint.
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  #11  
Old February 22nd, 2006, 12:50 PM
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Dave Jackson
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Appreciate the photos. Very informative. Dave

Follow-up Post:

OK. I've done some research and read some stuff, but I remian confused. Does anyone have first hand experience sourcing and installing a cheaper after market fuel pump for a '97 SW?

BY the way, I know how to access and remove the old fuel pump.

Related: my fuel gage bounces around and is generally unreliable. Any thoughts on troubleshooting this problem?

Thanks in advance
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  #12  
Old February 22nd, 2006, 02:04 PM
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Michael Jekogian
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My gas gauge does the same thing. I was told it was the gauge and not the sender. new gauge $90.

m
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  #13  
Old February 23rd, 2006, 10:18 AM
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Jake Buinewicz
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I've never even messed with the fuel pump on the 90 and that napa part number goes to a inline pump and an in-tank pump. It's the intank fuel pump right? Would you guys say the install is around 2 hrs?
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  #14  
Old February 23rd, 2006, 10:23 AM
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Carter P74006
Available at Napa, use existing plug
NAPA P74006
89 Cadillac Seville (puts out 30 psi, cut off connector and replace with female spades)
AC Delco EP241 (94 Camaro)(94-95 D90)
Range Rover - GM 462-23 or NAPA part number BK 610-1011

From here http://www.defendersource.com/tech/part_sub.html

It is an in tank pump. It may take allot more time then that if the skid plate is badly rusted, but Jimmy can have his on off and replaced in under 45 minutes using only hand tools.
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  #15  
Old February 23rd, 2006, 11:29 AM
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Dave Jackson
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Hi Mike,

Thanks. I saw some of this info. Are you saying that the Carter pump is appropriate for a '97 D90? That's my question. Thanks. Dave
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  #16  
Old February 23rd, 2006, 12:12 PM
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Well According to AB

http://www.roverparts.com/ProductLis...umber=ESR3928K

They all use the same pump which makes sence.

This is the part we used to fix Jimmy's 90

http://www.autozone.com/servlet/UiBr...%7ENONE%7C%7EB
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  #17  
Old February 23rd, 2006, 02:14 PM
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Craig Dickson
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I hope I don't jinks myself but my fuel pump has been whinning on and off for the past 5 years and it still works fine. I suppose if you are afraid of getting stranded changing it out is probably a good idea.
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