I have 1989 jeep wrgler yj has been setting a yr. im getting no fuel to carb has only 44000 on it.can you help.

PCV bad. (or its hose pinched, clogged or even backward)

1. PCV is failing fix this first for $5 or remove it and see how bad blow by is. visually. (remove only valve covers side to test )
2. or cracked or collapsed piston.
3. or cracked head gasket, compression tests pass?

yes one of the best jeeps are YJ, not full 10 stinking married computers , wish every day I never sold my 2002,
2002 is the last good jeep IMO

blow by is most mostly past bad piston rings, even warped cylinder from past overheated engine,

The YJ used a 2.5 L AMC 150 I4 or optional 4.2 L AMC 258 I6 until 1990

which one, 4 or 6 cylinders.???

YJ jeep Jurassic Park

1992 Jeep Wrangler YJ Sahara models
all are great.

ok just the word, 6cylinder.
but they had many.
early wrangler ,called the YJ jeep. true name.
be nice to know the VIN, number, xxxx on end.,
this tells the helper whats there, if still stock , is it? many are NOT.
many this old are engine swapped,
no photos by you of engine nor distributor...
nor the connector pin count on side of distributor.
lets do displacement first is it the 4.0L ?
with throttle body. injection, or a carb.?
1989 is a year of rapid changes, I had 2x 88s.
some have the french EFI , called Renix.
with 4 injectors, and a brain dead ECU. horrid.
this have there very own different spark systems.
I think the last carb ever on wrangler is 1987.
before this worse electronic carbs, yup , avoid them.
4.2L inline 6 no the 4.0L (5million made)
looks like injection did not happen on YJ until.... 1991. later
than all other jeeps, 4 years, late.
I had many of the others, my beloved, Comanche 88
500k miles long....
has spark timing, check.
has distrib. check
has sepr. coil check' has module outside, check.
im on line now at mitchells so could you.
its"
The ignition module is mounted next to the battery on all models. It is a sealed, weatherproof unit on the 4.2L engine. 1987-90 vehicles equipped with a 2.5L engine, incorporate the coil in the control module."




seem you have this. says wiki.
4.2 L AMC straight-6 engine, 358cu/in. engine.

Do you have an Electric fuel pump?

The fuel should not leak into the venturi.
Chances are the float is set too high or there is dirt in the seat.
The float pushes down on a valve to shut off the flow from the pump much like the float in your toilet.
You could take the top off the carb and check the float level with the carb on the truck. You may need a book to tell you where the level is supposed to be.

you may have gotten so bad fuel try some STP gas treatment and some Shell gasoline also give these websites a try www.alldatadiy.com and www.autozone.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your Jeep wish you the best of luck Michigan Man.

mine problem was identical, the fuel filter has a return to tank on it and when it starts to get plugged it returns all the fuel to tank and not start, i crimped the return with vise grips and it started right up so i knew to replace the fule filter

I would say its not bad fuel, it would not start on bad fuel. I would be looking at a fuel block somewhere most likley in the carb sys.

If you have a carb you do not have a map or IAC valve. They are on fuel injected throttle body setups. You really should go to an auto parts store and get a book if your really interested.

clean the carb or throttle body with carb cleaner and make sure that the butterfly valve inside is moving properly.check all the spark plugs,cap rotor and lead wires to make sure all cylinders are working.

sounds like you need to rebuild your carb. I just had mine done for my jeep the hardest part was finding someone to do it. ps mine only cost 50 bucks so dont get ripped off. good luck and hope this helps.