4.0l xj 97 motor into yj 87 - Page 8 - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > 4.0l xj 97 motor into yj 87

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineNEW!! HMF 50"-52" light bar mounting brackets!! Year End Clearance Sale! Save 20%

Reply
Unread 09-13-2013, 03:31 PM   #106
SLO_Ken
Registered User
1986 CJ7 
 
Join Date: Nov 2009
Location: California
Posts: 887
Quote:
Originally Posted by lbsickboy View Post
Do you think i could just tap into the sensor on the front at the thermostat house??
yeah, although that housing gets crowded pretty quickly. I'd check to see if there is a position on the head or in the block for the temp gauge sending unit. Mine had the boss at the back of the head, but I had to drill and tap the hole.

http://www.jeepforum.com/forum/f8/ca...l#post15550264


SLO_Ken is offline   Reply With Quote Quick reply to this message
Unread 09-13-2013, 03:40 PM   #107
lbsickboy
Registered User
1986 YJ Wrangler 
 
Join Date: Aug 2011
Location: Den Haag, zuid holland
Posts: 190
Slo

Yes I got that, so I need the original temp sender unit then.
Ad what size waste drill bit u used?
Do you happen to have any photos on how you went around it.
__________________
http://www.jeepforum.com/forum/f12/4-0l-xj-97-motor-into-yj-87-a-1567705/
WANGLER 87 4.0 HO AW4
4,5 " ROUGH COUNTRY LIFT KIT, 1.5" BOOMERANG SHACKLES, 33'' BANDEN, ROUGH COUNTRY DUAL STEERING STABILIZER
lbsickboy is offline   Reply With Quote Quick reply to this message
Unread 09-13-2013, 03:50 PM   #108
SLO_Ken
Registered User
1986 CJ7 
 
Join Date: Nov 2009
Location: California
Posts: 887
Unfortunately, I did not take any photos of the drilling and tapping. The tap size is 1/8" NPT. Drill size is 'R' or 11/32" or 8.5mm.
SLO_Ken is offline   Reply With Quote Quick reply to this message
Unread 09-13-2013, 03:52 PM   #109
lbsickboy
Registered User
1986 YJ Wrangler 
 
Join Date: Aug 2011
Location: Den Haag, zuid holland
Posts: 190
Quote:
Originally Posted by SLO_Ken View Post
Unfortunately, I did not take any photos of the drilling and tapping. The tap size is 1/8" NPT. Drill size is 'R' or 11/32" or 8.5mm.
Ok thanks should be enough info
__________________
http://www.jeepforum.com/forum/f12/4-0l-xj-97-motor-into-yj-87-a-1567705/
WANGLER 87 4.0 HO AW4
4,5 " ROUGH COUNTRY LIFT KIT, 1.5" BOOMERANG SHACKLES, 33'' BANDEN, ROUGH COUNTRY DUAL STEERING STABILIZER
lbsickboy is offline   Reply With Quote Quick reply to this message
Unread 09-16-2013, 10:50 AM   #110
lbsickboy
Registered User
1986 YJ Wrangler 
 
Join Date: Aug 2011
Location: Den Haag, zuid holland
Posts: 190
update

ive got the tj tank on the way, thats coming from Belgium
the fule pump is on its way from the US, and then i had to order a new down pipe from wrangler TJ and that i had to order in the UK.
So im waiting on all the parts to come then i can start putting everything back together.
__________________
http://www.jeepforum.com/forum/f12/4-0l-xj-97-motor-into-yj-87-a-1567705/
WANGLER 87 4.0 HO AW4
4,5 " ROUGH COUNTRY LIFT KIT, 1.5" BOOMERANG SHACKLES, 33'' BANDEN, ROUGH COUNTRY DUAL STEERING STABILIZER
lbsickboy is offline   Reply With Quote Quick reply to this message
Unread 09-29-2013, 09:51 AM   #111
lbsickboy
Registered User
1986 YJ Wrangler 
 
Join Date: Aug 2011
Location: Den Haag, zuid holland
Posts: 190
Hi all so the pump arived this week and in place.

The thing is now i have the all the wires running to the front of the jeep on the drives side, hope i can splice the wires that are needed into the existing yj wiring.
if im not mistaken blue/green is the sensor
green white is for the fule pump power
brown/yellow is ground
and then i have one black wire that was not long enough to run threw to the front with the rest of the wires and that is ground to for the pump i think.



Then i have this connector from the yj and you can see the 3 wires brown yellow ,and then theres the oranges one, I now know the orange isnt connected to anything so im thinking this is then the power for a fule pump for the yj 2.5l motor
so thats B4 on the yj connector which is not on my engine bay connector but i do have it on the bulkhead connector,
the only orange wire that i have on the engine bay connector is A6 ignition 4.2l only.



Should i take the A6 wire out of the connector and move it to the B4 position, so i can connect that up for the power on the fule pump

Should i splice the blue/green to the brown wire in the first foto for the gauge sensor on the yj

Should i connect the green/white wire to the orange wire in the first foto fule pump power.






__________________
http://www.jeepforum.com/forum/f12/4-0l-xj-97-motor-into-yj-87-a-1567705/
WANGLER 87 4.0 HO AW4
4,5 " ROUGH COUNTRY LIFT KIT, 1.5" BOOMERANG SHACKLES, 33'' BANDEN, ROUGH COUNTRY DUAL STEERING STABILIZER
lbsickboy is offline   Reply With Quote Quick reply to this message
Unread 09-30-2013, 11:00 AM   #112
SLO_Ken
Registered User
1986 CJ7 
 
Join Date: Nov 2009
Location: California
Posts: 887
Quote:
Originally Posted by lbsickboy View Post
Hi all so the pump arived this week and in place.

The thing is now i have the all the wires running to the front of the jeep on the drives side, hope i can splice the wires that are needed into the existing yj wiring.
if im not mistaken blue/green is the sensor
green white is for the fule pump power
brown/yellow is ground
and then i have one black wire that was not long enough to run threw to the front with the rest of the wires and that is ground to for the pump i think.

Correct. In the stock XJ configuration, the blue/green goes to pin C26 on the ECU (fuel level sensor signal) , and the brown/yellow goes to pin A4 (sensor ground). The fuel gauge in the XJ is controlled by the ECU, not directly from the sensor. I believe you should be able to wire these directly to your YJ fuel gauge. The YJ fuel gauge is looking for 0 ohm empty and 90 ohm full. You might want to check your new sending unit to verify the resistance range.

Quote:
Then i have this connector from the yj and you can see the 3 wires brown yellow ,and then theres the oranges one, I now know the orange isnt connected to anything so im thinking this is then the power for a fule pump for the yj 2.5l motor
so thats B4 on the yj connector which is not on my engine bay connector but i do have it on the bulkhead connector,
the only orange wire that i have on the engine bay connector is A6 ignition 4.2l only.

The green/white from the fuel pump should go to the green/white that comes from the PDC (cav D2 on C100). The black from the fuel pump should go to chassis ground.

Quote:
Should i take the A6 wire out of the connector and move it to the B4 position, so i can connect that up for the power on the fule pump
No

Quote:
Should i splice the blue/green to the brown wire in the first foto for the gauge sensor on the yj
I'm not sure where that wire is coming from. you want to splice into position 4 of the gauge harness connector.



Quote:
Should i connect the green/white wire to the orange wire in the first foto fule pump power.
No






[/QUOTE]
SLO_Ken is offline   Reply With Quote Quick reply to this message
Unread 09-30-2013, 11:38 AM   #113
lbsickboy
Registered User
1986 YJ Wrangler 
 
Join Date: Aug 2011
Location: Den Haag, zuid holland
Posts: 190
ok i couldnt wait lol,
thanks for the info SLO
so i went a head with wiring the orange wire op to the green white wire what i have done, i moved the orange wire pin A6 to B4,
the reason why is because pin A6 is not used at all on my set up.
When i turnded the key to prime the fuel pump it kicked in just like it did on the cherokee

Also i wired up the wires blue/green up to the brown wire but the gauge on the yj went to full tank and its not full so thats got me stomped.

So if im right in uderstanding that i should wire the brown/yellow to ground.

is this diagram from the yj or xj




im going to start the jeep after ive had somthing to eat
__________________
http://www.jeepforum.com/forum/f12/4-0l-xj-97-motor-into-yj-87-a-1567705/
WANGLER 87 4.0 HO AW4
4,5 " ROUGH COUNTRY LIFT KIT, 1.5" BOOMERANG SHACKLES, 33'' BANDEN, ROUGH COUNTRY DUAL STEERING STABILIZER
lbsickboy is offline   Reply With Quote Quick reply to this message
Unread 09-30-2013, 12:03 PM   #114
SLO_Ken
Registered User
1986 CJ7 
 
Join Date: Nov 2009
Location: California
Posts: 887
the diagram is from the YJ.

It sounds like things are moving in the right direction, so that's encouraging!

Quote:
Also i wired up the wires blue/green up to the brown wire but the gauge on the yj went to full tank and its not full so thats got me stomped.

So if im right in uderstanding that i should wire the brown/yellow to ground.
Yes, you need to connect the brn/ylw to ground. Until you do, the gauge is seeing infinite resistance, and will be pegged to Full. Did you verify that your new sending unit gives ~0 ohm when empty and ~90 ohm when full? This is measured between the blu/grn and brn/ylw wires.

These might help understand what is going on between the gauge and the sending unit..

SLO_Ken is offline   Reply With Quote Quick reply to this message
Unread 09-30-2013, 01:01 PM   #115
lbsickboy
Registered User
1986 YJ Wrangler 
 
Join Date: Aug 2011
Location: Den Haag, zuid holland
Posts: 190
ok thanks now i get you

with being inpatient i didn't measured between the blu/grn and brn/ylw wires.

I just tried to start the jeep with no success,then i got a strong smell of fresh gas, so i looked under the jeep to investigated and found a petrol fuel line is leaking at this connection is it common to leak at this area.

__________________
http://www.jeepforum.com/forum/f12/4-0l-xj-97-motor-into-yj-87-a-1567705/
WANGLER 87 4.0 HO AW4
4,5 " ROUGH COUNTRY LIFT KIT, 1.5" BOOMERANG SHACKLES, 33'' BANDEN, ROUGH COUNTRY DUAL STEERING STABILIZER
lbsickboy is offline   Reply With Quote Quick reply to this message
Unread 09-30-2013, 01:06 PM   #116
lbsickboy
Registered User
1986 YJ Wrangler 
 
Join Date: Aug 2011
Location: Den Haag, zuid holland
Posts: 190
Oh i forgot to mention that now when i go to turn my key in the contact my back lights come on and they stay on, when i take the key out of the ignition they stay on and the only way to get them to turn of is by disconnect the battery.
so i dont know whats going on there now
__________________
http://www.jeepforum.com/forum/f12/4-0l-xj-97-motor-into-yj-87-a-1567705/
WANGLER 87 4.0 HO AW4
4,5 " ROUGH COUNTRY LIFT KIT, 1.5" BOOMERANG SHACKLES, 33'' BANDEN, ROUGH COUNTRY DUAL STEERING STABILIZER
lbsickboy is offline   Reply With Quote Quick reply to this message
Unread 09-30-2013, 01:11 PM   #117
SLO_Ken
Registered User
1986 CJ7 
 
Join Date: Nov 2009
Location: California
Posts: 887
There are two O-rings inside that fitting. If one or both of them are dislodged during installation, it will leak.
SLO_Ken is offline   Reply With Quote Quick reply to this message
Unread 09-30-2013, 01:13 PM   #118
lbsickboy
Registered User
1986 YJ Wrangler 
 
Join Date: Aug 2011
Location: Den Haag, zuid holland
Posts: 190
OK i will look into that asap like now lol
__________________
http://www.jeepforum.com/forum/f12/4-0l-xj-97-motor-into-yj-87-a-1567705/
WANGLER 87 4.0 HO AW4
4,5 " ROUGH COUNTRY LIFT KIT, 1.5" BOOMERANG SHACKLES, 33'' BANDEN, ROUGH COUNTRY DUAL STEERING STABILIZER
lbsickboy is offline   Reply With Quote Quick reply to this message
Unread 09-30-2013, 01:25 PM   #119
lbsickboy
Registered User
1986 YJ Wrangler 
 
Join Date: Aug 2011
Location: Den Haag, zuid holland
Posts: 190
checked and they both seam to be in place,
i checked the other end to see if they were the same and yes they are so im stomped again.

what about the back lights why the hell are they coming on ive only got the left side of the bulkhead connector connected.
__________________
http://www.jeepforum.com/forum/f12/4-0l-xj-97-motor-into-yj-87-a-1567705/
WANGLER 87 4.0 HO AW4
4,5 " ROUGH COUNTRY LIFT KIT, 1.5" BOOMERANG SHACKLES, 33'' BANDEN, ROUGH COUNTRY DUAL STEERING STABILIZER
lbsickboy is offline   Reply With Quote Quick reply to this message
Unread 09-30-2013, 01:36 PM   #120
SLO_Ken
Registered User
1986 CJ7 
 
Join Date: Nov 2009
Location: California
Posts: 887
Quote:
Originally Posted by lbsickboy View Post

It looks like there may be some corrosion on the steel nipple coming from the fuel pump assembly. The area where the o-ring seats needs to be perfectly smooth, or it could leak.



I'm not sure about the lights... Are they the red brake lights, or the white back-up lights? If it's the brake lights, there should be a switch near the top of the brake pedal assembly that feeds those lights. It's a NC (normally closed) switch, that is pushed open by a tang on the pedal arm when the pedal is in the "up" (NOT pushing on the brake) position. The circuit is designed so that if the switch fails, the lights stay on.
SLO_Ken is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com 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 e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
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






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.