Jeep Builds Make your own jeep build thread here, discuss and view jeeps here. All Jeep models are welcome here.

Yet another TDI conversion

Old 02-10-2017, 02:25 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Jul 2013
Location: Waynesboro TN
Posts: 99
Year: 2000
Model: Cherokee
Engine: 4.0L
Default Yet another TDI conversion

Alright guys I've finally started acquiring some of the bits and pieces I need to do an ALH swap on my 1999 2 door XJ 2wd . It came from the factory with the 2.5 liter and a 5 speed manual.... I found a running ALH still in the car with around 150,000 miles for CHEAP and couldn't pass it up. I'll be changing the jeep over to 4wd later on down the road but right now I just want to get the motors swapped out and the jeep running down the road again. I don't have a shop to work in so I may be biting of more than I can chew but I'm gonna give it a go. My jeep is currently not running because I believe it has a rod knocking or a main bearing going down. So in your opinions which swap kit has the most bang for the buck?

​​​
mattthomas78 is offline  
Old 02-11-2017, 10:17 PM
  #2  
Member
 
evguy's Avatar
 
Join Date: Apr 2012
Location: Errington BC Canada
Posts: 152
Year: 2000
Model: Cherokee
Engine: VW TDI Diesel
Default

Hi Matt.
Have you read my build thread?
https://www.cherokeeforum.com/f46/20...ighlight=evguy

We love our TDI XJ.
What gears does it have in it? I changed to 4.10's this years and it was well worth the money. The 4.10's work well with 32" tires but if your going larger you would want lower gears. The TDI likes to run in the 1500-2500 RPM range.
evguy is offline  
Old 02-13-2017, 06:20 PM
  #3  
Junior Member
Thread Starter
 
Join Date: Jul 2013
Location: Waynesboro TN
Posts: 99
Year: 2000
Model: Cherokee
Engine: 4.0L
Default

Originally Posted by evguy View Post
Hi Matt.
Have you read my build thread?
https://www.cherokeeforum.com/f46/20...ighlight=evguy

We love our TDI XJ.
What gears does it have in it? I changed to 4.10's this years and it was well worth the money. The 4.10's work well with 32" tires but if your going larger you would want lower gears. The TDI likes to run in the 1500-2500 RPM range.
I'm honestly not sure what gear I have in the rear end, I'll have to give it a look. I'm guessing it has 4.10 being a little 2.5 liter 5 speed from the factory but I'm not 100% sure.

How difficult is it to adapt the wiring harness of the XJ and VW together? Also my instrument cluster has what I call "dummy lights" instead of gauges. I really want to change the current cluster out for the gauge cluster that comes in most XJs. Electrical is my biggest downfall, I can build a motor and do some fab work but I'm lost when it comes to wiring.
mattthomas78 is offline  
Old 02-13-2017, 07:41 PM
  #4  
CF Veteran
 
cleenrob's Avatar
 
Join Date: Jul 2012
Location: San Antonio, TX
Posts: 4,104
Year: 1996
Model: Cherokee
Engine: 4.0L
Default

.
cleenrob is offline  
Old 02-14-2017, 08:08 PM
  #5  
Member
 
evguy's Avatar
 
Join Date: Apr 2012
Location: Errington BC Canada
Posts: 152
Year: 2000
Model: Cherokee
Engine: VW TDI Diesel
Default

I left the two systems independent.
The TDI ECU runs all the TDI systems and the XJ ECU runs all the Jeep systems.
I installed the Jeep oil pressure and water temp senders into the TDI and dash works well.
evguy is offline  
Old 02-22-2017, 09:34 AM
  #6  
Junior Member
Thread Starter
 
Join Date: Jul 2013
Location: Waynesboro TN
Posts: 99
Year: 2000
Model: Cherokee
Engine: 4.0L
Default

Originally Posted by evguy View Post
I left the two systems independent.
The TDI ECU runs all the TDI systems and the XJ ECU runs all the Jeep systems.
I installed the Jeep oil pressure and water temp senders into the TDI and dash works well.
I may have missed it but did you take pictures of the wires that you installed from the jeep wiring into the TDI wiring?

Excellent work on all of your swaps by the way, I went to your sight and looked around at all your goodies.

I'm going to take a look at my rear end this weekend and see if the data tag is still attached.

Does anyone know what is involved with swapping the gauge cluster? Is it a simple swap our do I need wiring harness to go with it? I currently have the cluster with "dummy lights" and want to swap in the cluster with tachometer, oil pressure, voltage, etcetera....

Last edited by mattthomas78; 02-22-2017 at 09:38 AM.
mattthomas78 is offline  
Old 02-22-2017, 11:31 AM
  #7  
CF Veteran
 
cleenrob's Avatar
 
Join Date: Jul 2012
Location: San Antonio, TX
Posts: 4,104
Year: 1996
Model: Cherokee
Engine: 4.0L
Default

97+ xj use a can bus sytems to run the gauges, this means that the senders for the gauges report to the pcm, and the the pcm sends a multiplexed signal over a single wire. this signal cannot be generated with out the jeep computer so you would have to plum the jeep sensors into the tdi block and "fool" the jeep pcm into thinking its running normally.

i personaly would go for building a new gauge cluster with some after market gauges
cleenrob is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: