Removed tranny, replaced tranny, now wont rev past 2k rpms? - Jeep Cherokee Forum

Go Back  Jeep Cherokee Forum > Technical Discussion > Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
Removed tranny, replaced tranny, now wont rev past 2k rpms? >

Removed tranny, replaced tranny, now wont rev past 2k rpms?

Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Removed tranny, replaced tranny, now wont rev past 2k rpms?

Reply

 
 
 
Old 08-22-2015, 11:37 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Jul 2012
Posts: 43
Year: 1992
Model: Cherokee
Engine: 4.0l I6
Default Removed tranny, replaced tranny, now wont rev past 2k rpms?

I just don't get it.

Blew a freeze plug.
Removed transmission.
Replaced freeze plug.
Replaced transmission.

Idles fine (as fine as it ever did) but when you rev it up it's like a rev limiter is set to 2000 rpms. Just gun it and it pops and flutters and WILL NOT REV past 2k.

Took off the air intake hose and did the same thing. Removed the muffler, no change. Replaced the fuel filter, no change. Unplugged the o2 sensor, no change.

The only thing weird that happened is that I unplugged the far back spark plug wire (to help see behind the head) and forgot to plug it back in after replacing the tranny. It started and ran like crap until I remembered and plugged the wire back in. Ohh, and the starter wires at the starter arced on the frame because I forgot to disconnect the battery. That wouldn't blow the ECU would it?

What the hell?

Last edited by Zerocyde; 08-22-2015 at 11:42 PM.
Zerocyde is offline  
Reply With Quote
Old 08-23-2015, 11:28 AM
  #2  
Junior Member
Thread Starter
 
Join Date: Jul 2012
Posts: 43
Year: 1992
Model: Cherokee
Engine: 4.0l I6
Default

Bump
Zerocyde is offline  
Reply With Quote
Old 08-23-2015, 07:45 PM
  #3  
Junior Member
Thread Starter
 
Join Date: Jul 2012
Posts: 43
Year: 1992
Model: Cherokee
Engine: 4.0l I6
Default

bump
Zerocyde is offline  
Reply With Quote
Old 08-23-2015, 10:47 PM
  #4  
Junior Member
Thread Starter
 
Join Date: Jul 2012
Posts: 43
Year: 1992
Model: Cherokee
Engine: 4.0l I6
Default

bump
Zerocyde is offline  
Reply With Quote
Old 08-24-2015, 10:55 AM
  #5  
CF Veteran
 
CCKen's Avatar
 
Join Date: Aug 2010
Location: Canton, MI
Posts: 8,357
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Originally Posted by Zerocyde View Post
I just don't get it.


The only thing weird that happened is that I unplugged the far back spark plug wire (to help see behind the head) and forgot to plug it back in after replacing the tranny. It started and ran like crap until I remembered and plugged the wire back in. Ohh, and the starter wires at the starter arced on the frame because I forgot to disconnect the battery. That wouldn't blow the ECU would it?

What the hell?

Maybe.


Check all your fuses to make sure none are blown.
CCKen is offline  
Reply With Quote
Old 08-24-2015, 10:56 AM
  #6  
Seasoned Member
 
Join Date: Nov 2014
Location: So. Cal.
Posts: 333
Year: 1 9 9 5
Model: Cherokee
Engine: Inline 6, 4.0
Default

Do you have a OBD2 scanner? I would check to see if your throwing any codes before you start guessing. I dont know about your year but you might be able to use the 3 key click technique and the check engine light.
nicksan is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RunnerInPink
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
25
10-10-2017 10:34 AM
Blackcherokee290
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
22
05-15-2016 12:48 PM
OGCollard
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
21
08-27-2015 08:11 AM
Zerocyde
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
08-27-2015 02:09 AM
Zerocyde
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
08-26-2015 09:23 PM

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

Thread Tools
Search this Thread
Quick Reply: Removed tranny, replaced tranny, now wont rev past 2k rpms?


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

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: