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Unread 04-10-2013, 11:56 AM   #1
SRH92YJ
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1992 YJ Wrangler 
 
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Helllpp 92 won't start

So I had run her out of gas I think, have a bad gauge. Fuel pump was a no go. Finally changed the pump and filter and she still won't start. Pump primes but I just checked the return line and there's no fuel coming through. Put a needle nose vice grip in the Schrader valve and nothing coming out. Don't know what to do now

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Unread 04-10-2013, 12:02 PM   #2
Siva283
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Do you hear the fuel pump prime at key on?
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1995 YJ. 2 inch BDS Spring lift. 1 inch shackle lift. 1.25 inch JKS Body Lift 33x12.5x15's. Engo 10,000 pound winch.

[QUOTE=Magnum;14117863] I gave the Jeep the required offering of $$, sweat, and blood, and everything works fine now. -- Jim[/QUOTE]

[QUOTE=ldso;16498409]. It started with a $200 axle, and a few thousand dollars later I was done :)[/QUOTE]

[QUOTE=Luuca;16122017]diagnose the real issue before you start going all Obama on it - spending mad cash you'll need for other important things.

Ask me how I know...[/QUOTE]

[QUOTE=Overhead;17658665]this is also my second set of RC springs this year. I'd rather spend the money again and get something that will last.[/QUOTE]
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Unread 04-10-2013, 12:05 PM   #3
Que89YJ
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Put gas in it? Is it possible you flipped the supply and return fuel lines at the tank?
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Unread 04-10-2013, 12:15 PM   #4
Mark05059
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Quote:
Originally Posted by Que89YJ View Post
Put gas in it? Is it possible you flipped the supply and return fuel lines at the tank?
Im going to guess that your lines are swapped as Que suggested above.

I believe you can swap the lines at the frame so you dont have to drop the tank
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Unread 04-10-2013, 01:00 PM   #5
SRH92YJ
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Yeah you can here the pump prime, I was very careful to make sure the lines weren't crossed. Pulled the line going into the rail and nothing. I'm wondering if maybe there's a clog in the line. I had accidentally pinched the feed line trying to route it through a different way and thought that was it but still nothing
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Unread 04-10-2013, 01:09 PM   #6
Siva283
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Is there fuel in the return line. How much gas is in it. Are you sure the pick up that hooks to the pump has not come loose from the pump itself.
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1995 YJ. 2 inch BDS Spring lift. 1 inch shackle lift. 1.25 inch JKS Body Lift 33x12.5x15's. Engo 10,000 pound winch.

[QUOTE=Magnum;14117863] I gave the Jeep the required offering of $$, sweat, and blood, and everything works fine now. -- Jim[/QUOTE]

[QUOTE=ldso;16498409]. It started with a $200 axle, and a few thousand dollars later I was done :)[/QUOTE]

[QUOTE=Luuca;16122017]diagnose the real issue before you start going all Obama on it - spending mad cash you'll need for other important things.

Ask me how I know...[/QUOTE]

[QUOTE=Overhead;17658665]this is also my second set of RC springs this year. I'd rather spend the money again and get something that will last.[/QUOTE]
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Unread 04-10-2013, 01:16 PM   #7
idaholtby
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Quote:
Originally Posted by SRH92YJ View Post
Yeah you can here the pump prime, I was very careful to make sure the lines weren't crossed. Pulled the line going into the rail and nothing. I'm wondering if maybe there's a clog in the line. I had accidentally pinched the feed line trying to route it through a different way and thought that was it but still nothing
It is real easy to pinch the fuel lines when reinstalling the tank after installing a new fuel pump. (Real common) You state you can hear the fuel pump prime when the ignition is first turned on. So given this, the new pump has power. Que asked if you added fuel. This may sound silly, but these YJ's fuel gauges are known to read 1/4 tank when in fact they are bone dry. Never let your tank run below this reading on these old rigs unless you have the odd duck that doesn't exhibit this. If the fuel pump is priming and there is nothing at the rail, then it has to be a pinched line, crossed line, clogged filter, or insufficient volume of fuel for the pump to draw from. Of course, you could have bought a dud of a fuel pump, but unlikely. I really suspect a pinched supply line if the rail is dry and the pump is priming.
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Unread 04-10-2013, 01:54 PM   #8
SRH92YJ
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I disconnected both of the lines going into the fuel rail and nothing from either. Swapped the lines and nothing. I had changed the filter at the same time. The old one was pretty clogged. About to disconnect the lines at the pump and run air through them and see if any crap comes out
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Unread 04-10-2013, 02:09 PM   #9
idaholtby
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Quote:
Originally Posted by SRH92YJ View Post
I disconnected both of the lines going into the fuel rail and nothing from either. Swapped the lines and nothing. I had changed the filter at the same time. The old one was pretty clogged. About to disconnect the lines at the pump and run air through them and see if any crap comes out
Yeah, then the only real probability is a pinched line when the tank was reinstalled. Either that or your new pump is a dud, given that you say it in fact runs when the ignition is first turned on and that there is indeed sufficient fuel available. Perhaps try dropping the tank a few inches, inspect the lines for kinks, and then see if you get pressure to the rail.
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Unread 04-11-2013, 06:51 AM   #10
SRH92YJ
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I don't get it though. I had the one pinched line. Fixed that, tried starting and still nothing. This time I looked and there was fuel in the return line it looked like. I dunno about to run through everything again and see what I can find
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Unread 04-11-2013, 07:14 AM   #11
Que89YJ
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If you disconnect the line from the the tank going to the rail. Jumper pin 30 to 87 on the fuel pump relay socket with a short piece of wire and see if you get fuel. If the pump comes on and you don't get fuel then you need to drop the tank again your problem is in the tank. Probably the pickup.
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Unread 04-14-2013, 11:45 AM   #12
SRH92YJ
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I think I just fried this pump when I tried priming it so many times with the pinched line. Gonna bring it back to advanced and order a whole sending unit from JC Whitney I think. Anyone try theirs out?
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Unread 04-15-2013, 06:17 AM   #13
Que89YJ
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If that pump failed it was on its way out. You can cycle that thing on and off 100,000 times by our life test requirements so you didn't do anything to it bad. Did you have any luck?
http://www.mtscompany.com/jeep.htm
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Unread 04-15-2013, 07:04 AM   #14
pete1991YJ
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What about the little connecting hose down on the sending unit inside the tank - did it come loose or fall apart? My old one literally fell into pieces when I changed my pump.
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Unread 04-16-2013, 08:39 AM   #15
SRH92YJ
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the new pump came with replacement rubber hose. i dunno if it could of been a bad pump. i disconnected the line at the fuel filter and tried priming it and got nothing. i dunno i think i could of fried it. i haven't heard any good things about the pumps from advance and auto zone.

que89, i can get that sending unit through jc whitney right?
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