swaped engines-runs rough-maybe E.C.M. issues?

Reply

  #1  
Old 07-06-08, 11:10 AM
Member
Thread Starter
Join Date: Jun 2007
Location: mojave desert
Posts: 17
Received 0 Votes on 0 Posts
swaped engines-runs rough-maybe E.C.M. issues?

i just bought a 1991 ford explorer 4wd 4.0L automatic trans. A few days later it blew the head gasket while a "friend" was borrowing it for the day. she just wanted to get home, so she surely cracked the whole damned head. So i have since bought a 1994 4.0 engine, and paid a mechanic to install it. It does not idle well, nor run at lower speeds.
iwas wodering if the computer needs to be reprogrammed to my mileage/dash. or are there any known conflicts i might need to be aware?

thanks guys!
 
Sponsored Links
  #2  
Old 07-06-08, 12:05 PM
Unclediezel's Avatar
Member
Join Date: Dec 2006
Location: Northeastern PA.
Posts: 2,230
Received 0 Votes on 0 Posts
There is a BIG difference in computers between those 2 applications......And the ECM's were not programmable back then.......

It has only been in the last 10 or 12 years that Engine controls have been Programmed to a specific vehicle......Any discrepancy requires the use of the Applications ECM....



Any Check Engine Light?......
 
  #3  
Old 07-08-08, 08:11 PM
Member
Thread Starter
Join Date: Jun 2007
Location: mojave desert
Posts: 17
Received 0 Votes on 0 Posts
there is, essentially, always a check engine light, only it takes almost 10 minutes to appear! the newer engine ('94) is in my '91 body, now. it does not idle well, and there is absolutely no power. gutless. should i try to obtain the brain originally to this engine? oh, and if the answer to that is yes, do i need to have it's own, original dash so its mileages match up?
 
Reply

Posting Rules
You may not post new threads
You may not 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


Thread Tools
Search this Thread
Display Modes
 
Ask a Question
Question Title:
Description: