Diagnose this (possibly) simple no-starting problem - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 04-25-2008
Member
Thread Starter
iTrader: (1)
 
Join Date: May 2006
Location: Albany, NY
Posts: 29
Diagnose this (possibly) simple no-starting problem

1999 XLT 4.0 113,000 miles. Truck ran fine yesterday when parked. Get in this morning to go to work, starter cranks and cranks but engine will not fire up. Cranking sounds normal like always. I let the truck sit for about 10 minutes, go back out and it fire rights up. Never had this problem before.

I am thinking fuel pump? Possibly ingnition coil?

Any ideas? How do I diagnose this problem if it happens again? I guess I would start by pulling a plug and checking for spark while cranking.
Reply With Quote
  #2  
Old 04-25-2008
Member
 
Join Date: Nov 2005
Location: Elizabeth City, NC
Posts: 767
Yeah, but before you go that far, simply listen for the fuel pump when you turn the key to run, without cranking.
Reply With Quote
  #3  
Old 04-25-2008
mossyoak03's Avatar
Member
iTrader: (1)
 
Join Date: Oct 2006
Location: Virginia Beach, VA
Posts: 193
Quote:
Originally Posted by Earl43P View Post
Yeah, but before you go that far, simply listen for the fuel pump when you turn the key to run, without cranking.
+1 give your fuel pump a little time to cut on before trying to crank
Reply With Quote
  #4  
Old 04-25-2008
Member
Thread Starter
iTrader: (1)
 
Join Date: May 2006
Location: Albany, NY
Posts: 29
Thanks guys...I will do that later. I feel stupid not thinking of that at the time.

So this sounds indicitive of a bad fuel pump moreso than a bad fuel pump relay or fuel system wiring problem?
Reply With Quote
  #5  
Old 04-25-2008
Member
iTrader: (1)
 
Join Date: Mar 2008
Location: Union City, PA
Posts: 170
have you changed fuel filter recently. I had same problem a few weeks ago after I changed fuel filter found out I was leaking a little gas but the lines were tight on the filter after it was changed. Changed fuel filter again stop leaking and figured out that on the the ends on the filter was slightly larger.
Reply With Quote
  #6  
Old 04-26-2008
Member
Thread Starter
iTrader: (1)
 
Join Date: May 2006
Location: Albany, NY
Posts: 29
Negative on changing the fuel filter. Truck seems fine now and I have done nothing to it.

Why would this only be a problem one time?
Reply With Quote
  #7  
Old 04-26-2008
Member
iTrader: (1)
 
Join Date: Mar 2008
Location: Union City, PA
Posts: 170
Maybe your truck forgot what it's doing. You know had a brain fart......lol
Reply With Quote
  #8  
Old 07-05-2008
Member
 
Join Date: Jul 2008
Location: Cumming, Georgia
Posts: 1
Fuel pump relay should do it

Mine has done a similar thing. Would start fine most of the time. Sometimes would "hit" a couple of times and quit. Would not start for a while. Then was fine a couple of hours later. Replaced the fuel pump relay, and presto, it works every time again. Still doesn't make sense to me though, as it worked some times.

Tim Glover
Reply With Quote
  #9  
Old 11-25-2008
Member
Thread Starter
iTrader: (1)
 
Join Date: May 2006
Location: Albany, NY
Posts: 29
UPDATE...

I haven't had this this problem since.

Crazy, huh?
Reply With Quote
  #10  
Old 11-25-2008
t3ob's Avatar
Member
 
Join Date: Apr 2008
Location: Olive Branch, MS
Posts: 1,762
yeah, that does seem kinda strange...
Reply With Quote
  #11  
Old 11-25-2008
wydopnthrtl's Avatar
Member
iTrader: (2)
 
Join Date: Dec 2005
Location: SE, Mi
Posts: 2,342
Could have been a piece of debris in the pump.

When something like this happens I always turn the ignition on / off / on just to cycle the pump.

Rich
Reply With Quote
  #12  
Old 11-25-2008
97ranger4x4's Avatar
Member
 
Join Date: Sep 2008
Location: Sacramento, CA
Posts: 77
This happened to my roomates ranger a few weeks ago. She was cranking for a while, at 5am... I think it was just a fluke. another thing to look into is the fuel pressure regulator. If that was going out, it would cause the fuel rail to loose pressure making it difficult to start. However, if you were getting any pressure from the pump it should take a few cranks to start up at the most.
Reply With Quote
  #13  
Old 11-25-2008
Prerunner-Ranger's Avatar
Level I Supporter
 
Join Date: Feb 2008
Location: Lancaster, CA.
Posts: 2,280
Mine does that everyone once in a great while.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Help me diagnose my problem (maybe transmission) Lammchop1993 4.0L OHV & SOHC V6 Tech 4 02-23-2015 10:49 AM
diagnose AC compressor problem - pic attached shuckyd General Technical & Electrical 20 04-24-2011 11:45 PM
PLEASE HELP ME DIAGNOSE THIS PROBLEM kfc ranger Member Introductions 17 08-26-2010 02:40 PM
horrible starting, revs up after starting. smokindmax SOHC - 2.3L & 2.5L Lima Engines 5 09-01-2009 11:33 AM
Possibly a serious problem! red_ranger_2000 General Ford Ranger Discussion 9 12-18-2008 01:44 AM


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 11:36 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.