I just replaced my fuel pump (with a bosch) in my 98 xj and after i installed it i went to get gas due to it having a little more than a gallon in the tank. and when i was taking left hand turns it sounded like it was sputtering and wanted to cut out so i let off the throttle and got back in a straight line and gave it gas and all good. so i filled it up and drove around for a week, went about 250 miles, and now its time again to fill up again and its sputtering and wanting to die out again. its a brand new pump assembly and i checked, double checked and triple checked to make sure i had everything hooked up correctly and it sure looks like it is. I did a little research to see what it could be and all i saw was "do a good tune up" which i did 3 weeks ago, "check your fuel pressure...." OK cool, i get that but what do i do after if its low/high/nonexistent, and "make sure you check you muffler bearings " . i laughed at that last one and said screw it, im going on CF.

anyone know whats going on?

 

When this happens is it always in a turn...

 

yes and steep hills
and it only does it when its low on gas on turns and hills. when its full to about a quarter tank its fine.

 

Keep it above a quarter tank? (I always do this anyway.)

 

Yeah, it's sucking air when low fuel and extreme attitudes coincide.

Your fuel pump is fine. Assuming you put a new sock on it, just keep more fuel in the tank.

You keep on sucking air, you're going to burn up your new pump.

 

Do you have tilt steering that's loose ...https://www.cherokeeforum.com/f2/che...g-right-12981/

 

ihad a feeling like that might be the problem but i never had that happen before so i was a little confused why the new pump would do that and my old one wouldnt
man you always help me out! that sounds exactly like my problem. ill dig around a little bit under the hood. thanks!

 

Steering coloumn inside read post 13....

 

im still having the same problem with the jeep cutting out on turns when I get down to 2 gallons or less of gas, which is about the time that the gas light comes on. I don't know if its sloshing around dropping the float making the jeep think it doesn't have fuel or if its sucking in air. but all I know is its never done that before and I want to know what's different now than before. and yes I know I know, just fill it up before it gets to that point but I want to fix the problem, not ignore it. I also did what Freegdr said and checked the steering column but nothing was loose. btw thanks for pointing that out, its good to know for future reference.

I also have a new problem with the jeep not wanting to start on the first crank. in order to get it to do that I have to prime the pump 3 times and it still sometimes doesn't want to fire right up. the on the second crank it fires right up like it should. and with all of this happening I'm getting a rough idle after it warms up. anyone chime in on this if you know what it might be.

 

The one thing that I am thinking is when you put it all back together the float got moved and your fuel level may be off a bit and you have less fuel then you think. So if you think you have 2 gal you may only have just enough to keep it running. I had the same problem on my XJ and now i have the same problem on my Tahoe. On my Tahoe when it reads 1/4 tank I know that it's time to refill.

 

ya see i thought about that too but every time i fill up i can only put 18.5 gallons into a 20 gallon tank.

 

The hard starts may be a leaky injector. I say this because you just replaced the fuel pump which is another source of hard starts.

 

Not all the fuel in the tank is usable.

I don't think I've put more than 16 gallons in either of my Cherokees. I was sweating it before I got to the gas station those times.

 

I just did the pump in my 2000 also about a month back. The silver part on top of the pump is the regulator. Its supposed to like block off fuel to the rail when you turn the jeep off. Holding fuel in the line. If its not working properly fuel will drain back into the tank. My new pump does this also. Turn the key on and off three times to fill the lines and build the pressure back up. It'll start first crank then

 

Don't think I've ever let a vehicle get down to 2 gallons.