Question about 1991 Jeep Wrangler

2 Answers

Will a 1998 jeep 4L 2.5 motor work in a 1991 jeep wrangler?

Will a 1998 jeep 4L 2.5 motor work in a 1991 jeep wranglerthat had a 4L 2.5?

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

Im pretty sure the actual block will fit but the whole wiring harness for the 1998 goes clear back to the taillights just because of the fuel injection

Posted on Dec 17, 2013

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 33 Answers

Most likely yes. One thing about the older Jeeps is that they did not change the models much from year to year. If the two jeeps had the same engine, they are probably nearly 100% interchangeable.

Posted on Feb 12, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

How to get the fuel pump to start working


which engine, Nat.? 2.5L or 4.0L? in the XJ/MJ pickup.
1986 is the first, AMC EFI, used, in Jeeps.
this is the RENIX system (French, EFI injection)
sorry, no ASD then, not until 1991 .with real Chrysler EFI.
the ECU powers the fuel pump relay directly.
if the ECU has power, it will energize this relay, does it?


4.0L here.86-88 (same is true up to 1991)
25921628-jy55te25vvk1g12vmyxwai2y-5-0.jpgthe ASD was introduced on the 1991 Wrangler but only 4L
the XJ/MJ same year but to both engines, 2.5 and 4L
both have ASD in 1991,
The MJ Comanche Pickup is a XJ cut down at the rear. and has same unibody base.
The engine book for XJ/MJ are the same blue book.

Oct 23, 2015 | 1986 Jeep Comanche

1 Answer

MY 1991 JEEP WRANGLER CARS HEATER DOESNT WORK


If the blower works check for coolant in the cooling system. Test operation of thermostat. Check heater control valve for proper operation if equipped. Pressure test cooling system to ensure system holds pressure (this will help you identify a leak, if any. If car does not over heat and cooling system is in good working order, then the heater core is clogged.
If the blower does not work Check fuse, relay, wiring for short to ground, apply direct battery voltage to blower motor. If blower motor turns on and fuse/relay and wiring are ok replace the switch.

Dec 14, 2010 | 1991 Jeep Wrangler

1 Answer

My 4WD won't engage but I have vacuum to the axle disconnect vacuum motor, linkages feel solid when shifting and the 4WD light comes on in 4H and 4L on the dash like it should. I have a 93 Jeep Wrangler...


check the shift motor on the axle for holes. sometimes the rust through. i've fixed holes before with dura-glass body filler. if there are know holes,remove the shift motor to check and be sure the shift fork is not broken.

Jan 18, 2010 | 1993 Jeep Wrangler

1 Answer

I have a 1991 jeep wrangler.Getting motor oil in the air filter.What could cause this to happen? No PCV valve to replace.


Yes there is a PCV valve, you just have to look for it.
Engine may be over full on oil.

Jan 04, 2010 | 1991 Jeep Wrangler

1 Answer

THE TRANSFER CASE WILL NOT ENGAGE IN 4H OR 4L. IT IS A 92 WRANGLER 4.0 6 CYL. WHAT IS THE PURPOSE OF THE VACUMM HOSES. BEFORE THE CASE IS REMOVED WHAT TROUBLESHOOTING SHOULD BE ACCOMPLISHED FIRST.. THANK...


4 wheel drive is vacuum activated. Check vac motor 1st as it is probably the reason for it not engaging. I had a 88 cherokee w/ bad vac motor which caused exact problem you describe.

Jul 14, 2009 | 1992 Jeep Wrangler

2 Answers

Vehicle won't start, it has clutch interlock, which is only activated in 2wd and 4H , vehicle starts in 4L only, clutch switch??


Take it to the Jeep dealer . It's still under warranty. Won't cost you a penny. Good luck.

May 23, 2009 | 2009 Jeep Wrangler

1 Answer

1991 jeep 4wd fuse


Check transfer case wiring, possible loose wiring/open circuit. If your other lights in dashboard work such brake light, seat belt lights, engine light than it is not a fuse. raise all for tires from the ground and engage the four wheel drive remember to have in neutral and put in gear either 4L or 4H and see if the wheels in front move.

Apr 04, 2009 | 1991 Jeep Wrangler

1 Answer

1998 Jeep Wrangler 2.5 liter motor timing specs?


you could have vacumm problems making it seem like the timing is off, but the other guys are right on the timing!!!! it could be throw-body problems, like crack manifold problems. This year has thhis type of problem sometime. Try spraying WD-40 around the vacuum hoses, & manifold to see if the motor changes rpm????

Feb 09, 2009 | 1998 Jeep Wrangler

Not finding what you are looking for?
1991 Jeep Wrangler Logo

Related Topics:

309 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

60667 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21936 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...