I have a 1990 4 cyl jeep wrangler i just filled tank with gas, drove 1 block and jeep stalled. Jeep starts right back up but will not stay running, seems as though its not getting enough gas. Is this a fuel pump problem? Is the fuel pump always inside the fuel tank for 1990 4 cyl and would it come inside if i ordered a new one?

which engine,? the have up to 3 choices.
rih?
what are the full symptoms,
did you do the full listed 60k mile tune up on car?
sparkplugs,wire, cap rotor/filters? no engine runs right with bad spark
unless it's a diesel.
starts good
runs good or bad hot or cold engine
idle at 800 RPM hot?
stalls> when hot and cold engine
lost of power
bogging
misfire,
learchs>

only stalls , but runs perfect even up hills, at wide open throttle.
fresh gas, or 1 year old?fuel.
can your fast right foot , save the stall, and easily?

ok stalls 101.
1; lost 12vdc to EFI system.
2: lost engine compression.
3: lost spark.
4: lost fueling or floods
there is a simple test for each.
do you want more guesses, or how to do tests.
can do both, but my guessing fails 99 /100 times.

tune it up
do the right foot test. those are always first. on stalls.
always.

1990 2.5L 4 banger. (just sold mine a 2002) I have 3.8L now. 2008
what transmission mine was 5speed manual stick , is yours?

ever do the 60,000 mile tune up, all service points under that column?
tune ups do work and have pay back in fuel savings.
" if in gas so much" i cant noodle that.....????
stall when , when you lift throttle and push in clutch.
when it stalls is everything !!
and when, coming to a stop light??????
and last and very important, can a fast right foot save the stall..?
i only have questions, and need all answers above, to proceed.
we can fix it. but i cant drive it and see all this.

if you just filled up i might be dirty fuel go get some fuel injector cleaner stp is good, lucas is better dump in your tank and cross your fingers you might have to start up a couple times.

Was there any water in the tank? Has anyone changed the fuel filter? Has anyone checked the ceramic ballast resistor on the drivers fender near the master cylinder?
Has anyone checked the crank sensor output? Did anyone see if it will run if you spray carb cleaner into the throttle body after starting? Are there pulses present at injector? You need to verify these things to get some idea what is going on there.

Taps or Knocks ?? Knocking indicates gas mixture to rough, possible dirty fuel injectors, try a gas system/fuel injector cleaner and either lower the octane or increase it for 1 tank of gas

Hi Dava224 i had the same problem with my 1989 CJ. when it was cold out i would pump the gas pedal 3-4 times before turning the ignition. it puts a small amount of fuel in the motor without stalling it out. it wont start as hard. another good idea is to keep some fuel stabalizer in the tank everytime you fill up. hope this helps

I had the same prblm with my 1989 Jeep, 6 cyl straight, and it was because of the EGR valve, easy to replace and not too costly. EGR valve is screwed on the motor, driver side, and there is a ±1/2" rubber hose attached. Easy to see if device comes apart, cut by rust.

Dear atomicboy488,

A lot of Rain=Possible Water in the Gas=Erratic Running!
This sounds like it may be as simple as cleaning the water or gunk out of the gas tank which is what I always do 1st because it's easy and inexpensive.
If your fuel is contaminated with gunk, grime, WATER and/or bottom junk like rust this will cause stalling AND ROUGH ACCELERATION!
Try spraying a can of starter fluid in the air intake and see if it runs! If it does, it's most likely bad fuel or clogged injectors so....
Fill the tank with High Test, Add some DRYGAS and a good fuel system cleaner or 2 or 3 and this should dissolve all the gunk and clean the injectors! Read & follow the cans' instruction carefully.
If this cures the problem never let your gas tank get below 1/4 and especially never run it to empty as this is when the gunk and/or water will enter the system!
Hope this helps!
Good Luck!
jackiaria
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you have a bad gauge( check dealer ) for part. easy fix, they will even let you talk to mech. to get some helpful tips

It sounds like you have some **** in the gas tank that is being drawn to the pickup blocking it.
Have seen this and because it seems so random, it can drive ya nuts.

You might carry a coffee can with you and pull the line from the fuel rail when this happens stick it in the can and just have someone turn the key on for a few seconds.
Beware though, it comes out with force.

Also possible is a failed fuel pressure regulator.
Those aren't expensive and . . . well, not very good either.