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Old 08-06-2008, 09:24 PM   #1
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New guy looking for facts

Hi all,

I think I'm being fed a line, but I need some jeep experts to clarify things for me.

Vehicle in question:
1997 Jeep Wrangler TJ/Se, 4-cyl

The line in question is (from a friend): "My mechanic told me the problem is the fuel pump. Apparently I have the 15 gallon tank as opposed to the 19 gallon tank. The mechanic says the 15 gallon tank has a different fuel pump and only a few dozen are currently on hand in North America, and there's a long waiting list. It could be weeks before it's fixed and cost upwards of $600 for the part alone."

I've did some cursory searches and find no mention on parts sites or elsewhere of two separate fuel pumps designs for the TJ, or the rarity of the fuel pump in question.

What say you?

Thanks!

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Old 08-06-2008, 09:42 PM   #2
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Raising the BS flag. Same tank as a 4.0 liter, hence same fuel pump. Buy a book and do the repair yourself, it's not hard with simple hand tools. Empty tank does help. Can't remember exactly, though the fuel pump is a few hundred dollars though.

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Old 08-06-2008, 09:43 PM   #3
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Well I hate to say but part of the line is true.The pump being rare is not.I could have the pump tomorrow but it is a little pricey.Labor and all would run $480 If I were doing it.
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Old 08-06-2008, 09:48 PM   #4
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It sounds like BS to me. Does the magic Jeep fairy have to fly the part in, or will the Easter bunny leave under the Mech's pillow?
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Old 08-06-2008, 09:51 PM   #5
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Well for one after 91 Chrysler only made the 19 gallon tank for the Wrangler.
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Old 08-06-2008, 09:53 PM   #6
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I know some of you are going to say mine is not a 19 gallon it is only a 15 but if I can find the web site or the thread on here I will put it up.
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Old 08-06-2008, 09:54 PM   #7
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Fuel pump = $285.99
Fuel pump gasket = $2.49

All at AutoZone and available right now. And these are for your specified vehicle/tank size.
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Old 08-06-2008, 09:55 PM   #8
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Old 08-06-2008, 09:57 PM   #9
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Quote:
Originally Posted by slf41002 View Post
Well for one after 91 Chrysler only made the 19 gallon tank for the Wrangler.
15 gal avail til 99. 2000 and after the 19 was standard.

Just looked through all the FSM's from 91 to 2006.
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Old 08-06-2008, 10:02 PM   #10
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Fuel pump = $285.99
Fuel pump gasket = $2.49

All at AutoZone and available right now. And these are for your specified vehicle/tank size.
Yes but that is a master brand pump and I wouldn't put another master in anything.The carter not as bad but I would go for a Omix-Ada Pump $314
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Old 08-06-2008, 10:05 PM   #11
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Airtex Master pump same as this master pump you dont like? and for what reasons?


http://www.autozone.com/R,1875318/ve...ductDetail.htm
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Old 08-06-2008, 10:13 PM   #12
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Don't tell me you work at Auto Zone.Don't get me wrong I have nothing against auto zone parts (with the exception of a few brands)or the store either just the local one because you can never get nobody when you call but anyway the Master pump I have had to replace after just a few weeks some a few days and a couple were no good right off the bat.I don't make a dime more if I have to replace a fuel pump in a customers car that I had just replaced a week earlier due to the part I get is no good.That is why!!!
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Old 08-06-2008, 10:21 PM   #13
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Awesome replies all, thank you very much.

Just so I have perfect clarity - there is NO different fuel pump needed between the 15 gallon and the 19 gallon fuel tank (indeed as another poster put up, the 15 and 19 gallon tanks were options through 1999 from everything I read)?
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Old 08-06-2008, 10:23 PM   #14
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umm no dont work there. just throwing it out there as he can get the pump for aroung $300 complete.

I dont buy parts from chain stores.

PS. I'm not a youngin or new to machanic's.
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Old 08-06-2008, 10:29 PM   #15
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The question about why you didn't like the product is because I have never use theres.

It's good to let people know if a product is junk.
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Old 08-06-2008, 10:32 PM   #16
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Quote:
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umm no dont work there. just throwing it out there as he can get the pump for aroung $300 complete.

I dont buy parts from chain stores.

PS. I'm not a youngin or new to machanic's.
Oh I am not doubting your skills in any way I was just stating from experience.I turn wrenches for a living and have done quite a few fuel pumps and just do not like a Master pump.As matter of fact I wrote to there main headquarters in Fairfield IL I think Fairfield anyway in IL and told them just what I thought of there pump not to long after they won the extra miler award from AutoZone.I told them what a big laugh that award was.Anyway we will not get into that.I am sure fuel pump are like many auto parts and there are only a hand full of companies that make them all but any pump that says manufactured by Airtex Master I will not buy.
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Old 08-06-2008, 10:33 PM   #17
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edited post #15
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Old 08-06-2008, 10:56 PM   #18
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Quote:
Originally Posted by JohnyP View Post
Awesome replies all, thank you very much.

Just so I have perfect clarity - there is NO different fuel pump needed between the 15 gallon and the 19 gallon fuel tank (indeed as another poster put up, the 15 and 19 gallon tanks were options through 1999 from everything I read)?
I would get the one listed for 15 gallon if that is what it calls for.Even though I have read more than one place that 19 gallon is the only tank made after 91 I have never checked to see if a pump listed as 19 gallon will fit in one that says it is 15 gallon.They only show a 19 here http://www.tellico4x4.com/index.php/cPath/1759_166 I would ask for a Carter brand if they only have Master and Carter. Ok here is a carter http://www.partsamerica.com/ProductD...ype=52&PTSet=A
Now Check out the price of this Bosch http://www.partsamerica.com/productd...ype=52&PTSet=A
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Old 08-07-2008, 12:13 AM   #19
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The jeep parts manual does show a different part # for the 15 gal and 19 gal fuel pumps but I don't know what the difference is.

04897754AB 1 EP0, ER0 15 Gallon
04897755AB 1 EP0, ER0 19 Gallon


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Old 08-07-2008, 12:16 AM   #20
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I read somewhere awhile ago that the only real difference between the 15 & 19 gallon tanks is in the filler neck, longer neck in the 15 reduces filling capacity. Not sure as to either the veracity or the logic of this, but I'm pretty sure it was actually something from Jeep..
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Old 08-07-2008, 12:33 AM   #21
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it's the pump depth...the pump is taller for the 19 gallon.

I found this out a few years ago changing one out for a buddy. the 15 gal tank is more shallow than the 19 gal.
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Old 08-07-2008, 05:36 AM   #22
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Old 08-07-2008, 08:19 AM   #23
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Thanks a ton guys, armed with this info, I shall go pound people about the head.
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Old 08-07-2008, 09:10 AM   #24
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Are you 100% confident in the diagnosis that it is the fuel pump that has gone out? I thought mine was out in my 98 and it ended up being the relay on the sending unit, if I remember correctly. Anyway, my mechanic whom is very good with Jeeps says he does not see them go out very regularly. Just wanted to raise that question.
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Old 08-07-2008, 09:21 AM   #25
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Are you 100% confident in the diagnosis that it is the fuel pump that has gone out? I thought mine was out in my 98 and it ended up being the relay on the sending unit, if I remember correctly. Anyway, my mechanic whom is very good with Jeeps says he does not see them go out very regularly. Just wanted to raise that question.
Unfortunately, I'm not very confident as I can't physically get my hands on the jeep itself as it's a couple hundred miles away. I know the individual on-site (the jeep owner) but they are not mechanically inclined, and thus at the mercy of what sounds like a rather insane mechanic, given the quote I started this whole thread with.
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Old 08-07-2008, 10:04 AM   #26
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The difference is the sender. If you put a 19G pump in the 15g tank when full the gauge will not show full.
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Old 08-07-2008, 11:37 AM   #27
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15 and 19 gallon tank is the SAME tank, SAME pump. Only difference is the vent tube that tells the pump when to stop. You CAN mod it to be a full 19.

The mechanic is:

1. Dumber than a box of rocks
2. Just trying to get you buy a bunch of stuff you don't need
3. Too lazy to tell you the truth or to search for correct part

Or a combination of all the above. Get a Factory Service Manual (or even a Haynes), and do this yourself. Dropping the tank and swapping fuel pumps is NOT a big issue. While you have the tank down, put on a good gas tank skid. It'll protect the tank (and pump) while driving offroad.
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Old 08-07-2008, 07:44 PM   #28
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Quote:
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The difference is the sender. If you put a 19G pump in the 15g tank when full the gauge will not show full.

Hey 4.0 I think it would be the other way arounndA 15 gallon pump would fit in a 19 gallon tank but would run out before the gas was gone in the tank but a 19 gallon pump would be to tall to fit in a 15 gallon tank(if there truely is a 15 gallon tank) I replaced a tank in a CJ one time and then had the option of a larger 19 gallon as a replacement but back then they were known to have either or.


Actually I have only changed a fuel pump in a Wrangler one time.I have done many pumps as a matter of fact I just done one in a full size Chevy today.I have not seen that many fuel pumps out in the wranglers myself.I do know sometimes after being off all night it takes a bit longer to start due to fuel lines not being pressurized and have heard people say that it is the pump being weak but if so there would be more going bad than you normally see, so I think it is something to do with the return line allowing the pressure to leak off back into the tank after being off awhile.Also I seen someone say a relay on the sending unit and it very well could have been the pump relay but it should be in the PDC not at the sending unit.Also If I remember right the fuel filter is hooked to the pump by a short rubber hose and sits in a rubber bung on top of the sending unit and comes with the pump as it shows in the picture of the ones I have looked at and from memory of the one I replaced.
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Old 08-07-2008, 08:45 PM   #29
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well eather way the tanks are the same just different vent tubes. Same pump but the sender on the pump is calibrated different that is why they sell both ones. So a 19g pump fits in a 15g tank just the reading is off a little.
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Old 08-08-2008, 05:11 AM   #30
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Hey 4.0 I think it would be the other way arounndA 15 gallon pump would fit in a 19 gallon tank but would run out before the gas was gone in the tank but a 19 gallon pump would be to tall to fit in a 15 gallon tank(if there truely is a 15 gallon tank) I replaced a tank in a CJ one time and then had the option of a larger 19 gallon as a replacement but back then they were known to have either or.


Actually I have only changed a fuel pump in a Wrangler one time.I have done many pumps as a matter of fact I just done one in a full size Chevy today.I have not seen that many fuel pumps out in the wranglers myself.I do know sometimes after being off all night it takes a bit longer to start due to fuel lines not being pressurized and have heard people say that it is the pump being weak but if so there would be more going bad than you normally see, so I think it is something to do with the return line allowing the pressure to leak off back into the tank after being off awhile.Also I seen someone say a relay on the sending unit and it very well could have been the pump relay but it should be in the PDC not at the sending unit.Also If I remember right the fuel filter is hooked to the pump by a short rubber hose and sits in a rubber bung on top of the sending unit and comes with the pump as it shows in the picture of the ones I have looked at and from memory of the one I replaced.
Usually the long cold start is from a bad anti drainback valve, it allows the gas in the lines to drain back into the tank. Over on NAXJA there is a fix using a BMW inline drainback valve, the part is like $17 or so.

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