1987 2.3 idle problem...need help - Ranger-Forums - The Ultimate Ford Ranger Resource


SOHC - 2.3L & 2.5L Lima Engines Discussions and Topics specific to the Lima 4 cylinder engines

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-08-2011
Member
Thread Starter
 
Join Date: Jun 2011
Location: Citrus Heights CA
Posts: 5
1987 2.3 idle problem...need help

ok, so i bought this 87 due to someone took good care of it, it has an msd coil pac distributor and wires, k&n filter, custom wheels and all news 5 spd trans and clutch, brand new exhaust...however someone tried to steal it and tore up interior, but that isnt the issue the issue is it passed smog under a year ago with previous owner and now i have to smog it but on a cold start it fires up first crank and runs fine, 30-45 seconds the idle goes up a little. another 30-45 it goes higher and higher to which i rev it and it come down to idle, the truck idles for 30 -45 seconds before it starts to miss fire and wanna die. the engine will rev itself and stay lit but this keeps going on and on and on, if i stop at a light it feels the idle is too low and it will occasionally die but will fire right back up with the first crank. im totally lost on what is causing it cause im getting 24 mpg on average and the timing reads 20 degrees on the balancer. ive put in a new temp sensor and iac neither of which did anything unless i somehow got a bad iac from duralast. i bought this truck for work and play but im at my end with this thing, If it dont pass smog and run right i dont want it does anyone have a clue to what might be my issue?

Last edited by 87ranger2wd; 06-08-2011 at 04:48 PM. Reason: spelling
Reply With Quote
  #2  
Old 06-08-2011
Member
 
Join Date: Mar 2007
Location: Upstate,NY
Posts: 2,598
Check the butterfly shaft on the throttle body for any up/down , side to side play.
Also check the throttle plates where they contact the bore to see if they have worn a groove in it . It may be leaking vacuum in these areas.
Reply With Quote
  #3  
Old 06-08-2011
Member
Thread Starter
 
Join Date: Jun 2011
Location: Citrus Heights CA
Posts: 5
ok, i checked for regular vaccuum leaks with throttle body cleaner buy didnt notice any of those issues ill take a look and let you know
Reply With Quote
  #4  
Old 06-08-2011
Member
Thread Starter
 
Join Date: Jun 2011
Location: Citrus Heights CA
Posts: 5
checked and cant find any leaks around throttle, however the idle screw isnt touching the throttle cable, i know your not supposed to adjust them on fuel injected cars but could this one be turned in without killing my smog?
Reply With Quote
  #5  
Old 09-16-2011
chilsam's Avatar
Member
 
Join Date: Mar 2011
Location: chillicothe il
Posts: 23
87 Idle

Did you ever figure it out mines doing the same thing.THANX!
Reply With Quote
  #6  
Old 10-08-2011
chilsam's Avatar
Member
 
Join Date: Mar 2011
Location: chillicothe il
Posts: 23
EMTS sensor

I replaced it and it works GREAT now,it's in the intake manifold.Hope this helps.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1987 ranger 2.3l need help please! tf79 SOHC - 2.3L & 2.5L Lima Engines 1 10-27-2013 04:40 PM
Grinding Starter, 1987 ranger. Need Help! david.kraft18 General Ford Ranger Discussion 3 02-14-2013 01:02 PM
low idle when slowing down to idle j_huhnke 4.0L OHV & SOHC V6 Tech 2 03-25-2012 10:26 AM
Idle woes and high idle 4door 2.9L & 3.0L V6 Tech 7 12-16-2010 12:49 PM
ugh i need help with an idle problem tluafeD General Technical & Electrical 12 03-21-2010 03:07 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 05:07 AM.


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.