wont restart after running - Ranger-Forums - The Ultimate Ford Ranger Resource


General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 08-08-2014
Member
Thread Starter
 
Join Date: Aug 2014
Location: McDonough, Ga
Posts: 8
wont restart after running

I have a 94 ranger, 2.3 I star it and it will sit there and idle great for as long as I let it tun, shut it off and wont restart, have to let it set for about 15-20 min. I have replace everything, and I mean everything! except the engine itself, im stumped, any ideas would be apprciated.
Reply With Quote
  #2  
Old 08-08-2014
cheese_man's Avatar
Member
iTrader: (1)
 
Join Date: Nov 2009
Location: arthur
Posts: 2,100
i would suspect it is the fuel rail pressure regulator has failed

or even a nearly plugged up fuel filter
Reply With Quote
  #3  
Old 08-08-2014
Member
Thread Starter
 
Join Date: Aug 2014
Location: McDonough, Ga
Posts: 8
Quote:
Originally Posted by cheese_man View Post
i would suspect it is the fuel rail pressure regulator has failed

or even a nearly plugged up fuel filter
I have already changed the the fuel pressure regulator and the fuel filter. Even replaced the fuel pump
Reply With Quote
  #4  
Old 08-08-2014
cheese_man's Avatar
Member
iTrader: (1)
 
Join Date: Nov 2009
Location: arthur
Posts: 2,100
then you have vapour lock

on the end of the fuel rail there is air valve ( same as a tire valve )

have someone to key ignition on ( but no start ) , hold a small plastic pail opposite the valve

depress the little valve rod to evacuate air in the fuel line / rail
Reply With Quote
  #5  
Old 08-08-2014
Member
Thread Starter
 
Join Date: Aug 2014
Location: McDonough, Ga
Posts: 8
for some reason i was thinking vapor lock, ill try that when i get home, thanks,, what causes a vapor lock? is that common? and will it return?
Reply With Quote
  #6  
Old 08-08-2014
cheese_man's Avatar
Member
iTrader: (1)
 
Join Date: Nov 2009
Location: arthur
Posts: 2,100
a fuel filter NO! , but changing out the fuel pump will cause air vapour lock in the fuel line / rail
Reply With Quote
  #7  
Old 08-08-2014
Member
Thread Starter
 
Join Date: Aug 2014
Location: McDonough, Ga
Posts: 8
Quote:
Originally Posted by cheese_man View Post
a fuel filter NO! , but changing out the fuel pump will cause air vapour lock in the fuel line / rail
Nope. Not a vapor lock, any other ideas. Has me stumped
Reply With Quote
  #8  
Old 08-08-2014
Member
Thread Starter
 
Join Date: Aug 2014
Location: McDonough, Ga
Posts: 8
Quote:
Originally Posted by Eric Mellesmoen View Post
Nope. Not a vapor lock, any other ideas. Has me stumped
Code says TP sensor circuit above max volts. But I already changed the TP sensor
Reply With Quote
  #9  
Old 08-08-2014
cheese_man's Avatar
Member
iTrader: (1)
 
Join Date: Nov 2009
Location: arthur
Posts: 2,100
did you clear the code(s) 1st after you replaced the throttle position sensor

you must clear the error code(s) after you replace a sensor(s) 1st

the only other 2 things i can think of are

the ignition coil is short circuiting internally when the engine has reached normal operating temperature

the engine may run on a lower fuel rail pressure when cold but not warm

could possibly be a failing fuel pressure regulator valve that is not allowing the fuel injectors to operate at the proper pressure ( or it is constantly receiving manifold vacuum even when engine is warm )

( rent a fuel rail pressure tester ) to double check that
Reply With Quote
  #10  
Old 08-08-2014
Member
Thread Starter
 
Join Date: Aug 2014
Location: McDonough, Ga
Posts: 8
I replaced all those parts I would hate to think I got a bad part and have to replace the same part again or parts and I did clear the codes when I replaced anything. This is really killing me. I also did replace the coil paks.
Reply With Quote
  #11  
Old 08-08-2014
cheese_man's Avatar
Member
iTrader: (1)
 
Join Date: Nov 2009
Location: arthur
Posts: 2,100
were those parts OEM replacements or aftermarket

when the engine is warm and running , pull off the vacuum hose to the fuel rail pressure regulator valve and plug it .

shut off engine , then try to restart it ( does the engine restart ) if it does

then the fuel rail pressure regulator valve is faulty
Reply With Quote
  #12  
Old 08-09-2014
Member
Thread Starter
 
Join Date: Aug 2014
Location: McDonough, Ga
Posts: 8
Quote:
Originally Posted by cheese_man View Post
were those parts OEM replacements or aftermarket

when the engine is warm and running , pull off the vacuum hose to the fuel rail pressure regulator valve and plug it .

shut off engine , then try to restart it ( does the engine restart ) if it does

then the fuel rail pressure regulator valve is faulty
no oem parts probably most of the problem. It restarts but is chugging and puking
Reply With Quote
  #13  
Old 08-09-2014
cheese_man's Avatar
Member
iTrader: (1)
 
Join Date: Nov 2009
Location: arthur
Posts: 2,100
replace the fuel rail pressure regulator valve before you do anything else

sounds like the fuel rail pressure regulator valve is jammed slightly open from the engine heat

use a small hammer and gently whack the regulator valve housing

then restart the engine

fuel pump / throttle position sensor and the regulator valve should always be OEM replacement

even if the parts cost more ( better than most aftermarket parts )
Reply With Quote
  #14  
Old 08-09-2014
Member
Thread Starter
 
Join Date: Aug 2014
Location: McDonough, Ga
Posts: 8
ok, tried tried tapping on it and same thing, when it cooled down starts up fine runs around 1K rpm, after it has been running and I finally get it restarted it will either chug, rumble and stall out OR it will start and run around 2500 rpm and when you push the gas it was to choke out, really weird. i really hate to go back through it with oem parts, just want to find that problem part then it will be an almost new truck, let me know if you can think of anything else
Reply With Quote
  #15  
Old 08-09-2014
cheese_man's Avatar
Member
iTrader: (1)
 
Join Date: Nov 2009
Location: arthur
Posts: 2,100
how long since your thoroughly cleaned out the throttle body

your idle air port may be near fully plugged up

choking out means the cylinders are NOT receiving enough fuel via the fuel injectors

i suspect you have been using fuel with ethanol in it , older style rubber diaphragms are eaten away by ethanol

time for a fuel rail pressure regulator valve , that most likely is causing the chugging / rumbling

NOT enough fuel rail pressure
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Clatter from engine with warm restart, not cold TheBishop 4.0L OHV & SOHC V6 Tech 3 10-25-2012 12:32 PM
Hot restart issue kjh 4.0L OHV & SOHC V6 Tech 13 10-22-2012 11:23 AM
Help!! windows wont roll up and deck wont come one dantheman General Technical & Electrical 4 08-26-2010 07:33 PM
wont stay running angrytreeclimber General Technical & Electrical 6 12-19-2009 02:39 PM
running lights wont turn off ambios General Technical & Electrical 3 01-09-2009 03:26 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 08:38 PM.


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.