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Fuel leak from top of the gas tank? #643203 09/02/05 03:55 AM
Joined: Aug 2005
Posts: 24
K
kdogg Offline OP
Need a Spot
I could smell gas in our garage last night. I thought it was just rich exhaust gas roaming the garage. I'm constantly checking my garage/driveway. Well, I finally spotted a spot of gasoline. It's dripping from a hose (engine fuel line) directly from the gas tank. I thought it would be just a hose replacement. I took a flashlight to the top of the tank through the rear suspension. I noticed wetness around the entire neck area where the tubing comes from. I thought it was odd the gas (expensive!!!!) was dripping on the driveway with the engine off.

I'm praying I'm not going to need a new gas tank. Anybody run into a similar problem? I've already had my share of frustrations with this thing.

[Linked Image]


'95 Montero SR 3.5L V6 DOHC
Re: Fuel leak from top of the gas tank? [Re: kdogg] #643204 09/02/05 05:26 AM
Joined: Jan 2000
Posts: 16,227
off-roader Offline
Web Wheeler
*****
With a 95? <img src="/forums/images/graemlins/zombie.gif" alt="" /> Heck I've rarely heard of the Gen I's having problems with that, much less the gen II's.

Re: Fuel leak from top of the gas tank? [Re: kdogg] #643205 09/02/05 02:46 PM
Joined: Jun 2003
Posts: 7,356
MontyMcV Offline
Trail Leader
Where are you located? I had a 92 that was pretty beat up from rust and the salty winters here. I had the lines on the fuel pump unit rusted through to the point that it was leaking, and then when I got home and wiggled the line, it broke off instantly. It is a rather big buck item at the stealer. Can't remember for sure, but at least $150.

I was able to R&R it. Pulled it out, yanked the hard lines that went through the top of it, and put new ones in. The new ones were a tight fit, then Seal-all after that. Had to recoat the Seal-all a year later. Probably didn't do a good enough job cleaning it. Then when I was in there later for the fuel sending unit, I noticed it still need attention. I JB Welded it that time. Sold t shortly thereafter, so don't know how the JB faired. Fine I would guess though.

If yours is a similar problem, you will likely have a tougher time getting the tiny screws out that hold the unit in. I used small vice-grips to break them loose, then a screw driver. Be careful not to strip the head first with the driver. Get new screws use anti-sieze. Then give them all a dab of grease on top to help the slots stay good.


Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
Daughter's: 06 Eclipse, Keeping it Mitsu!
FSMs: MitsubishiLinks.com
Re: Fuel leak from top of the gas tank? [Re: kdogg] #643206 09/02/05 03:13 PM
Joined: Aug 2005
Posts: 24
K
kdogg Offline OP
Need a Spot
I'm guessing the plumbing around the fuel pump is giving away. Everything is so rusted underneath the truck, I'm guessing the fuel pump is going to need replaced (possibly gas tank)? I was considering 'JB Weld'-ing it, but I'm sure that's not a long term solution.


'95 Montero SR 3.5L V6 DOHC
Re: Fuel leak from top of the gas tank? [Re: kdogg] #643207 09/02/05 08:00 PM
Joined: Jun 2003
Posts: 7,356
MontyMcV Offline
Trail Leader
The pump should be fine. Looking at CAPS and at MitsubishiParts.com, I don't think the stealer will have the assembly without the pump, though I have seen the pump alone as aftermarket. MP.com wants $350 for the whole assembly. <img src="/forums/images/graemlins/zombie.gif" alt="" />

I'm not saying JB weld the whole thing as is. I'm saying replace thos hard lines with ones that fit tight, then JB the top to "seal it up." It will work fine and cost only $10.


Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
Daughter's: 06 Eclipse, Keeping it Mitsu!
FSMs: MitsubishiLinks.com
Re: Fuel leak from top of the gas tank? [Re: MontyMcV] #643208 09/07/05 02:43 PM
Joined: Aug 2005
Posts: 24
K
kdogg Offline OP
Need a Spot
Whole sending unit needs replaced. I figured it would since it's basically 1 corroded lump on top of the gas tank. MP.com has it for $430 <img src="/forums/images/graemlins/scared.gif" alt="" />! I had my mechanic do it since there are many rusted bolts I would not want to deal with. Basically, this is going to set me back a bit$$$.


'95 Montero SR 3.5L V6 DOHC
Re: Fuel leak from top of the gas tank? [Re: kdogg] #643209 09/07/05 03:00 PM
Joined: Jun 2003
Posts: 7,356
MontyMcV Offline
Trail Leader
Have you ordered it? I'd try the yards first. Parts and labor on this is going to cost you over $600 I would guess. <img src="/forums/images/graemlins/zombie.gif" alt="" />


Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
Daughter's: 06 Eclipse, Keeping it Mitsu!
FSMs: MitsubishiLinks.com
Re: Fuel leak from top of the gas tank? [Re: MontyMcV] #643210 09/08/05 05:06 AM
Joined: Aug 2005
Posts: 24
K
kdogg Offline OP
Need a Spot
Yes, I have. Unfortunately, we don't own a F-150 or Silverado so salvaged parts are hard to come by. BTW, that's a pretty good guess.


'95 Montero SR 3.5L V6 DOHC
Re: Fuel leak from top of the gas tank? [Re: kdogg] #643211 09/08/05 05:48 AM
Joined: Jun 2003
Posts: 7,356
MontyMcV Offline
Trail Leader
I just noticed the Erie PA... Do you wheel anywhere near there? We have a cottage into NY at Findlay Lake. I have been looking for a place to go on weekends.

Also, for your future bone yarding, try Car-Part.com.


Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
Daughter's: 06 Eclipse, Keeping it Mitsu!
FSMs: MitsubishiLinks.com
Re: Fuel leak from top of the gas tank? [Re: kdogg] #643212 09/08/05 10:08 PM
Joined: Jan 2003
Posts: 410
Houston Offline
Mudrunner
I replaced the sending unit on my '92 for much less than the figure quoted to you. Are you sure you're getting a sending unit quote, and not a fuel pump assembly price?
I want to say I spent under $100 for the sending unit from my local dealer, but I'd have to drag out the '04 receipts to be sure. Just talked to my buddy at the parts dept, he states the sending unit is $62.50 and the pump is $491
Part numbers-sending unit MB571603- Pump is MR208665
This was looked up for a 3.5 '95 Montero, I don't know if the LS with the 3.0 liter is different. Hope this helps you out-- PS, have you removed the access cover on the floor in the cargo area for the pump/sending unit to get a better look? It's under the carpet/floor material

Last edited by Houston; 09/08/05 10:10 PM.

'92 SR Montero, Green, with 31" Yokohama Geolandar A/T Plus Tires, Mitsu factory fog light kit, on-board air compressor,Sony Radio and 10 disc changer. 213K and counting.....
Stock & Happy otherwise
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