Question about 1991 Jeep Wrangler

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Why is it difficult to put fuel in my '91jeep wrangler?

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2 reason,
the pump handle at the station is bad. (move to different island or pump)
or
your car. so if all stations are bad then it is your car !
(why not say so)
Car: (all)
so what is bad,, well that is EVAP system failure.
vent hose pinched or blocked at filler neck see that side hose on filler pipe?
and on newer cars. there is and electric valve that opens key off.
91 wrangler is old car.
no valve.
its a hose problem. rare to have this hose block, very rare, unless
collision damage kicked it.
but it is an old car, maybe the ethanol is killing the insides of it.
E10 fuel here, in USA,

Posted on Mar 24, 2015

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Posted on Jan 02, 2017

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My 87 wrangler runs rich, idles rough, runs rough. guy put on an electric fuel pump. original carb. he said it needed a fuel pressure regulator. is he right?


sounds like it is flooding the carb, by putting a fuel pressure reg on it it will lower the pressure at the carb and stop overriding the float,needle and seat.

Feb 17, 2010 | 1987 Jeep Wrangler

2 Answers

Why is my 1998 jeep wrangler 4 cyl sometimes starting hard to start after sitting over night or sitting for a long period of time.


Difficult question to answer. The problem could be due to internal wear causing slightly lower compression.
It could also be caused by worn spark plugs, a coil that isn't putting out as much spark as it used to etc.
Could also be caused by a marginal battery, or a starter that still turns the engine but draws enough current (amps) away from the ignition system as to render it less than efficient.
if you see a puff of black smoke when it first starts, you could have some slight injector leakage.
Sensors out of range can also do this by telling the computer that one thing is happening when it isn't ...temperature sensor may tell the computer it is warmer than it really is and the computer will not put as much fuel in there to get it fired up. Manifold air temp sensor can do nearly the same thing.
None of these items are terribly difficult to check using readily avalable tools...a compression gauge, a digital multi-meter and a decent manual like chiltons or haynes for a guide and specifications.
Any followup questions I will be happy to answer if I can!
Good luck!

Jan 29, 2010 | 1998 Jeep Wrangler

1 Answer

I have a 1993 4.0 jeep wrangler. I put in a new fuel pump, The jeep still has a hard time starting and when it dose it stops running after 15 sec, I checked the fuel filter and it was ok?


Hi There,

Had the same thing going on with my '91 Wrangler. After checking what seemed like every other component, I finally pulled the injector rack.

I found all six to be gummed up to some degree. Cleaned them up. put on new o-rings and reassembled.

Fired right up and stayed that way

Mike

Dec 12, 2009 | 1993 Jeep Wrangler

1 Answer

Where is the sending unit for the gas gauge located on the gas tank and how difficult is it to replace?


It is inside the fuel tank. To replace it you will need to remove the tank. It isn't that difficult with a couple of people and an empty tank.

Oct 08, 2009 | 1992 Jeep Wrangler

1 Answer

1998 jeep wrangler starting issues


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

Jun 28, 2009 | 1998 Jeep Wrangler

1 Answer

89 Jeep Wrangler. Engine stalls only when I put into gear.


it might be getting to much fuel check the fuel screw

Jun 10, 2009 | 1989 Jeep Wrangler

1 Answer

91jeep clutch quick pedal loss, barely shifts


Look inside the vehicle at the firewall where the clutch pedal rod goes into the master cylinder. See if there is fluid running down the inside firewall. Next look at the bottom of the bellhousing to see if fluid has been coming out of it. That will tell you if it's the master or slave cylinder. Most likely it is the slave leaking inside the transmission bellhousing.

Jun 07, 2009 | 1991 Jeep Wrangler

1 Answer

Is it difficult to change power steering system on 1998 wrangler


Are you putting power steering on the jeep???? If so, you will need a new power steering sector first, than a power steering pump. All of this is easy to do. all of it bolt on.

Dec 13, 2008 | 1998 Jeep Wrangler

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