How do I know if jeep is fuel injected or carbd? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 03-04-2014, 11:37 PM   #1
Jeeper
 
Join Date: Mar 2014
Posts: 125
How do I know if jeep is fuel injected or carbd?

Also
1. If it's 4.2 or 4.0
2. If I have Dana 35s or whatever other options there are
3. If I have the ax15 trans
I have 1988 ya seems pretty stock
Attached Thumbnails
Click image for larger version

Name:	ForumRunner_20140304_213658.jpg
Views:	155
Size:	100.7 KB
ID:	836297  

88redyj is offline   Quote Quick Reply
Old 03-04-2014, 11:48 PM   #2
Jeeper
 
Join Date: Mar 2014
Posts: 125
Pic
Attached Thumbnails
Click image for larger version

Name:	ForumRunner_20140304_214840.jpg
Views:	121
Size:	81.2 KB
ID:	836305  

88redyj is offline   Quote Quick Reply
Old 03-05-2014, 01:58 AM   #3
Jeeper
 
Join Date: Dec 2011
Posts: 63
Carb 4.2, D35 axle. Not to be a downer, but if you have to ask, this might not be the best vehicle choice for you.

Edit: do I count 4 plug wires on the distributor? 4 banger! That means it should have the BA10 tranny, not an AX15
Day215 is offline   Quote Quick Reply
Old 03-05-2014, 02:03 AM   #4
Jeeper
 
Codysrubicon's Avatar
 
Join Date: Aug 2012
Location: Buena Vista, CO
Posts: 181
Does the diff cover have a hole in it? Or am I just seeing things cuz I'm on my phone and it's late?
Codysrubicon is online now   Quote Quick Reply
Old 03-05-2014, 11:21 AM   #5
Jeeper
 
Join Date: Feb 2013
Posts: 727
Ok so let's ease up on the person this forum is a great place to come and learn and share.

So you have a 4.2 Carb I can tell that by the mechanical fuel pump in the pic the rear end is a stock D35 and just an FYI it is easier on people if you take the pictures straight up and down rather than from the side so we do not instinctively turn our heads, also you have the BA10 stock peugot trans most likely unless it has been swapped out. I had the exact same setup when I got my 88.

I would look at a new rear end depending on what size tires you want to run. D35 is not that reliable but with smaller size tires like 31's it may hold up for you under light off roading conditions. It all depends on your budget and desire and mechanical ability.

Enjoy post updates and questions as needed.

Chief
89Saharagreen is offline   Quote Quick Reply
Old 03-05-2014, 11:31 AM   #6
Jeeper
 
Russman's Avatar
 
Join Date: Apr 2013
Posts: 113
Quote:
Originally Posted by Codysrubicon View Post
Does the diff cover have a hole in it? Or am I just seeing things cuz I'm on my phone and it's late?
Was wondering that too.
Russman is offline   Quote Quick Reply
Old 03-05-2014, 02:40 PM   #7
Jeeper
 
Join Date: Mar 2014
Posts: 125
I don't know a lot yet on my jeep but will Def be learning all this. Explain to me the diff cover and I'll tell u if it does.
I believe I have 35'in tires. What rear axle do I need and how much will this run me?
88redyj is offline   Quote Quick Reply
Old 03-05-2014, 03:19 PM   #8
Jeeper
 
Join Date: Feb 2013
Posts: 727
So on your differential cover you have a side ways picture it looks wet on what looks to us as the bottom I suspect it is not a whole but a loose bolt and the gear oil is leaking. You need to check the bolts and make sure they are tight next pull that fill plug you see on the face and make sure it has gear oil in there if it is filled properly it should be up to the fill plug if it comes gushing out you have to much. Also look at the gear oil if it looks milky white it has water in it and needs changing.

Lastly do take a look at the distributor it may be an HEI type distributor hard to tell from the picture but if it is a 4.2 like I am suspecting there should be six plug wires and 1 coil wire. So just trace them and make sure you do not have two loose plug wires hanging there not connected to anything.

By the way how does the vehicle run is it back firing or shaking like a wet bear trying to get dry?

Chief
89Saharagreen is offline   Quote Quick Reply
Old 03-05-2014, 03:22 PM   #9
Jeeper
 
Join Date: Feb 2013
Posts: 727
with 35 inch tires I would begin to consider a better axle and better gear ratio but this is all subjective advice it is your jeep and your money.

If it were me I would go with a Dana 44 in the rear and 4.10 gears then just re-gear the front D30 to match the rear. That would be cheapest and easiest in my opinion.

Chief
89Saharagreen is offline   Quote Quick Reply
Old 03-05-2014, 05:32 PM   #10
Jeeper
 
Join Date: Mar 2014
Posts: 125
It runs great I mean needs a little warming in the am but it runs great. As far as shaking it doesn't shake unless I'm going over a bump..it idles great and it's good ride if smooth road. I feel most bumps tho but that's a jeep isn't it?
88redyj is offline   Quote Quick Reply
Old 03-05-2014, 05:36 PM   #11
Jeeper
 
Join Date: Mar 2014
Posts: 125
Are u referring to this pic? And the wet spot at top..If u look at from side view
Attached Thumbnails
Click image for larger version

Name:	ForumRunner_20140305_153555.jpg
Views:	60
Size:	91.7 KB
ID:	838233  
88redyj is offline   Quote Quick Reply
Old 03-05-2014, 05:39 PM   #12
Moderator

::WF Moderator::
 
harleydragon's Avatar
 
Join Date: Jul 2012
Location: south georgia
Posts: 3,908
sounds like you have a good jeep..If I were you,I would just keep it maintained,drive it and enjoy it. Look at other jeeps and do a lot of reading on here to decide if you might want to change it..
harleydragon is offline   Quote Quick Reply
Old 03-06-2014, 01:11 PM   #13
Jeeper
 
Join Date: Feb 2013
Posts: 727
Ok so the last pic is of the transfer case not the differential.

I was talking about the second picture you sent.

That is the differential or diff for short it is round or egg shaped and kinda centered on the axle.

It appears wet on the section closest to the ground.

Hope that helps

But to Harley's and my point it may be best for you to just drive it and enjoy it till something breaks.

Then look to upgrade. Also in the mean time era everything you can on the jeep.

Good luck

Chief

Chief
89Saharagreen is offline   Quote Quick Reply
Old 03-06-2014, 02:10 PM   #14
Jeeper
 
DennisC's Avatar
 
Join Date: Jan 2014
Location: N Arizona
Posts: 190
I suggest you invest $20 in a Haynes or Chilton manual for the YJ so you can become familiar with how it operates and is put together. You can also join a Jeep/4x4 club in Phoenix and learn from others. It's a 25 year-old, high mileage Jeep that's been modified by others of unknown skills, so it's important that you have some basic knowledge or you'll be at the mercy of the repair sharks.
DennisC is offline   Quote Quick Reply
Old 03-07-2014, 09:50 AM   #15
Jeeper
 
Join Date: Feb 2013
Posts: 727
I need to apologize I did not realize that a 4 banger came with a Carb. I thought they were all EFI.

So if it is carbed 4 banger it is not the same as mine. I saw the mechanical fuel pump and the stock air breather in the first picture and jumped to a conclusion.

Chief
89Saharagreen is offline   Quote Quick Reply
Old 03-07-2014, 09:56 AM   #16
Jeeper
 
creelclmsn's Avatar
 
Join Date: Jun 2012
Location: Charlotte, NC
Posts: 364
The Fan looks too close to the radiator to be a 4 cylinder. But looking at the cap it appears to only have 4 wires coming out of it. Man I didn't know they made a 4 cylinder carb either.
__________________
1995 YJ 2.5L 4cyl, 2.5 in. Rugged Ridge Lift, 1 in. Lift Boomerang Shackles, 32 in. Kenda Klever MT Tires, G.E.A.R Seat covers, Rear mounted Jerry Can, Smittybilt SRC Sliders, Rear Bumper, and Rear Corner Guards with Flat flares, EAUTOGRILLES Front Flat Fender Flares, EAUTOGRILLES Stinger Bumper, Quadratec 9000 lbs. Winch. Still more to come eventually!!!
creelclmsn is offline   Quote Quick Reply
Old 03-07-2014, 11:38 AM   #17
Jeeper
 
Join Date: Mar 2014
Posts: 125
It's a 4.2 v6
88redyj is offline   Quote Quick Reply
Old 03-07-2014, 11:45 AM   #18
Moderator

::WF Moderator::
 
harleydragon's Avatar
 
Join Date: Jul 2012
Location: south georgia
Posts: 3,908
Quote:
Originally Posted by 88redyj View Post
It's a 4.2 v6
4.2 inline 6...not v6
harleydragon is offline   Quote Quick Reply
Old 03-07-2014, 11:48 AM   #19
Jeeper
 
Join Date: Mar 2014
Posts: 125
yes sorry, its fri i get some slack please
88redyj is offline   Quote Quick Reply
Old 03-07-2014, 06:02 PM   #20
Supporting Member

WF Supporting Member
 
CyndiB's Avatar
 
Join Date: Jul 2011
Location: Inland Empire, CA
Posts: 1,121
Here are the stock specs for the YJs. I have the 4.2 engine in my 90 and it does not look like yours, but I don't know if the years make a difference. I'm wondering why your distributor seems to be missing two sparkplug wires, there should be 6 if you have a 6 cylinder. Maybe it's just a bad angle on the picture. Maybe you should run the VIN if it's the original engine. Do a search for VIN decoders.

YJ Stock Specs

Contents:
Common Design
Dimensions
Body
Engines
Transmissions
Transfer Cases
Driveshafts
Axles
Gearing
Trim Levels
Production Numbers
Other Resources


Common Design

Virtually every part of the YJ is interchangable between years. All YJ's feature a body on frame design. The YJ is the only Wrangler to have "square" headlights. All YJ's feature a leaf spring suspension and solid axles.

Dimensions

wheelbase = 93.4"
overall length = 1987-89: 152.6 in
...........................1990-92: 153 in
...........................1993-95: 151.9 in
overall width = 66"
track =
height = 1993-95: 71.9 in Hard or Soft Top
..............1987-1992 Soft Top: 72 in
..............1987-1992 Hardtop: 69.6 in
stock height of Jeep to rocker panels = 18"
ground clearance (from differentials) = 9"
approach angle =
departure angle =
breakover angle =
curb weight 4wd = 3,028 lbs. - 3,241 lbs.
towing capacity = 2,000lbs with proper hitch (officially) - 3,000lbs with proper hitch (un-officially)
Wheel bolt pattern = 5 X 4.5
Rim backspacing = 5.5"
Stock Tire Size = 205/75/15 or 215/75/15 depending on model

Stock suspension angles:
Toe: Set to 0 degrees, "ok range" 1/16 in - 1/16 out
Camber: Set to 0 degrees, "ok range" -1/2deg to +1/2 deg
Caster: *Manual trans: Set to 6.5 deg, "ok range" 5/14 deg to 7/14 deg
*Auto Trans: Set to 8.0 deg, "ok range" 6 1/2 deg to 9 deg
Outside wheel turn angle: Set to 33 deg, "ok range" 32 deg to 33 deg

Body

The YJ only comes in a 2 door model made up of a one-piece tub with a swing out rear tailgate. All models have a flip forward rear bench seat and two individual front folding foward seats.

87-91 models come equiped with the "sport style" roll bar. The rear bars come down from the main hoop at a 45* angle. The rear seatbelts for these models are lap belts mounted to the floor

92-95 models come with the "family style" roll bar. The rear bars form a 90* angle directly above the rear roll bar mount creating a overhead roll bar for the rear passangers. The rear seatbelts are now attached to the roll bar and are full 3 point belts rather than lap belts.


Engines

2.5L I4 TBI (fuel injected) - 121 hp @ 5000 rpm, 135 ftlb @ 3500 rpm - used in
'87-'90
2.5L I4 MPI (multi-port injection) - 130 hp @ 5250 rpm, 139 ft lb @ 3250 rpm - used in '91-'95

4.2L I6 Carburated AMC 258 - 112 hp @ 3200 rpm, 210 ft lb @ 2000 - used in '87-'90
4.0L I6 MPI AMC 242 "Power Tech HO" (High Output) - 190 hp @ 4750 rpm, 220 ft lb @ 4,000 rpm - used in '91-'95

Transmissions

Manual transmissions
AX-5 - Aisin 5-speed behind the I4 '87-'95
BA-10/5 - Peugot 5-speed behind the I6 from '87-March 9, 1989
AX-15 - Aisin 5-speed behind the I6 from March 10, 1989-'95

Automatic transmissions
TF904 - TorqueFlight Automatic behind the I4 '94-'95, prior to this, the YJ was not offered in an automatic with the I4
TF999 - TorqueFlight Automatic behind the I6

Transfer Cases

The transfer cases used are all chain driven with aluminum housings. NP stands for "New Process" which is the brand, if you will.

NP207 - "Command-Trac" part-time only - 2.61:1 ratio low range - only in 87
NP231 - "Command-Trac" part-time only - 2.72:1 ratio low range - shift pattern 2H - 4H - N - 4L - used '88-'95

Driveshafts
Axles

Front Axles
Dana 30 high pinion - reverse cut - 27 spline, 1.16" diameter shafts, 7.13" ring gear - used 87-95. All are vacuum disconnect, Some 95's have 5-297x u-joints due to the start of new model change over, all others have 5-260x u-joints.

Rear Axles
Dana 35 non c-clip - 27 spline, 1.18" diameter shafts, 7.58" ring gear, 2.62" axle tube - used '87-'89
Dana 35 c-clip - 27 spline, 1.18" diameter shafts, 7.58" ring gear, 2.62" axle tube - used '90-'95
Dana 44 non c-clip - 30 spline, 1.31" diameter shafts, 8.5" ring gear, 2.75" axle tube - used '87-'89 on a VERY limited number of Canadian YJ's.

(Note with the Dana 35C- The "C" does not stand for c-clip. It stands for "custom" meaning it came from Dana unfinished.)

Gearing

I4 Automatic - 3.73:1
I4 Standard - 4.10:1
I6 Automatic - 3.54:1 (normally)
I6 Standard - 3.07:1, 3.54:1 or 3.73:1 - must verify with the tag on the axle or by pulling the differential cover and reading the numbers stamped in the ring gear or by counting revolutions of wheel versus driveshaft.


Trim Levels

Base: also referred to as "S"&"SE" at different points in the model run; first few years the back seat and rear bumperettes were optional, some years the 6cyl engine was an option, other years only the 4cyl was available in the "Base" model

Laredo: Chrome grille, bumpers, and trim, hard top and hard full doors, tinted windows, faux leather interior, body color fender flares and alloy wheels

Islander: which included "Sunset" Islander graphics and distinct body colors including teal and bright yellow with matching wheel flares

Sport: which featured "sport" graphics and, beginning in 1991, a 4.0L 6 cylinder engine

Sahara: which came standard with the 4.0l 242cid engine, offered the most available options, including body color fender flares, matching side steps and alloy wheels. More saharas seem to have come with an automatic transmission and air conditioning than any other trim package.

Renegade: featured a similar option package as Sahara, but added premium wheels, deluxe interior group as well as oversized "Renegade" wheel flares and body cladding

Rio Grande: available in champagne gold, moss green and white, with a southwest themed interior trim package, only the 4cyl engine was available, model was offered in the last two years of the YJ model run.

Trim levels by year:

'87- Base, Laredo, Sport

'88- Base, Islander, Laredo, S, Sahara, Sport

'89- Base, Islander, Laredo, S, Sahara

'90- Base, Islander, Laredo, S, Sahara

'91- Base, Islander, Renegade, S, Sahara

'92- Base, Islander, Renegade, S, Sahara

'93- Base, Renegade, S, Sahara

'94- Renegade, S, Sahara, SE

'95- Rio Grande, Sahara, SE

'96- Left over '95s sold as '95s.

Production Numbers

Total of 685,071 YJ's

632,231 YJs were built through model year 1995, though YJs were still produced into mid '96 bringing the total production number to 685,071 units.

Other Resources
JeepWiki run by JeepForum
CyndiB is offline   Quote Quick Reply
Old 03-07-2014, 06:36 PM   #21
Jeeper
 
Tim Stines's Avatar
 
Join Date: May 2012
Location: Harrodsburg Indiana
Posts: 587
my 88 is a 2.5L and has the fuel injected throttle body and the fan shroud comes out a lot farther than the one in the picture because of it being a 4 cylinder it looks to be a 4.2L but as everybody else has said I only count 4 plug wires but if I zoom in on it, it kinda looks like it has 6 wires going up to the motor but its very hard to tell
__________________
There are many obstacles that life throws at you, but you gotta make like a jeep and crawl over them and continue on.

http://www.wranglerforum.com/f330/my...ml#post9534378
Tim Stines is offline   Quote Quick Reply
Old 03-07-2014, 07:09 PM   #22
Moderator

::WF Moderator::
 
harleydragon's Avatar
 
Join Date: Jul 2012
Location: south georgia
Posts: 3,908
it just looks like 4 wires in the pic but it isn't.. that is a 6 cylinder engine
harleydragon is offline   Quote Quick Reply
Old 03-07-2014, 07:23 PM   #23
Jeeper
 
creelclmsn's Avatar
 
Join Date: Jun 2012
Location: Charlotte, NC
Posts: 364
That looks like only 4, look at it zoomed in, maybe it's a motor out of a different vehicle
Attached Thumbnails
Click image for larger version

Name:	image-2816514134.jpg
Views:	41
Size:	80.5 KB
ID:	846305  
__________________
1995 YJ 2.5L 4cyl, 2.5 in. Rugged Ridge Lift, 1 in. Lift Boomerang Shackles, 32 in. Kenda Klever MT Tires, G.E.A.R Seat covers, Rear mounted Jerry Can, Smittybilt SRC Sliders, Rear Bumper, and Rear Corner Guards with Flat flares, EAUTOGRILLES Front Flat Fender Flares, EAUTOGRILLES Stinger Bumper, Quadratec 9000 lbs. Winch. Still more to come eventually!!!
creelclmsn is offline   Quote Quick Reply
Old 03-07-2014, 08:58 PM   #24
Jeeper
 
Zaedock's Avatar
 
Join Date: Mar 2012
Posts: 30
I see six plug wires. It also has a mechanical fuel pump and vacuum advance. That's definitely a 258.
__________________
1992 YJ 2.5L/SM420/NP231HD
Full cage, winch, 38" MT Claws
Zaedock is offline   Quote Quick Reply
Old 03-07-2014, 09:14 PM   #25
Jeeper
 
Join Date: Mar 2014
Posts: 125
My Vin says 4.2L . I might have wires not fully in. This is def. Frustrating and I need someone to come look at it. The guy I got it from told me 4.2 stock engine as well
88redyj is offline   Quote Quick Reply
Old 03-07-2014, 10:00 PM   #26
Jeeper
 
Tim Stines's Avatar
 
Join Date: May 2012
Location: Harrodsburg Indiana
Posts: 587
I zoomed in on the picture as much as I could on my computer and I did end up counting 6 so its the 4.2L plus just by looking at how far up to the fan shroud the shroud its much shorter than mine is its shorter to fit the 6 cylinder unlike mine where its quite a bit longer so it can reach my 4 cylinder
__________________
There are many obstacles that life throws at you, but you gotta make like a jeep and crawl over them and continue on.

http://www.wranglerforum.com/f330/my...ml#post9534378
Tim Stines is offline   Quote Quick Reply
Old 03-07-2014, 10:35 PM   #27
Jeeper
 
Join Date: Mar 2014
Posts: 125
U guys are just blind lol Jk here is a better pic to settle dispute

Also I do have 2 small hoses and a thicker one all on right side just kinda hanging. ..dude at OReilly said breather hoses??
Attached Thumbnails
Click image for larger version

Name:	ForumRunner_20140307_203407.jpg
Views:	36
Size:	68.1 KB
ID:	846937  
88redyj is offline   Quote Quick Reply
Old 03-07-2014, 10:51 PM   #28
Jeeper
 
Tim Stines's Avatar
 
Join Date: May 2012
Location: Harrodsburg Indiana
Posts: 587
where do the hoses start at? I would trace them and see

__________________
There are many obstacles that life throws at you, but you gotta make like a jeep and crawl over them and continue on.

http://www.wranglerforum.com/f330/my...ml#post9534378
Tim Stines is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 07:28 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC